steve/slide-switch-tht

Miniature through-hole SPDT slide switches, C&K OS102011: vertical (MS2Q) and right-angle (MA1Q), from C&K's OS series data sheet.

v1.0.0 STEVE MIT 0

Open in STEVE

Isometric

Parameters

Preset2 sizes

Type

MS2QMA1Q

MS2Q: vertical (actuator up); MA1Q: right angle (actuator parallel to the board).

Actuator position1–2

1 or 2 (the data sheet draws position 2).

Defaults built

part.py 104 lines · Python · STEVE runtime · checked

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"""Miniature through-hole SPDT slide switch, C&K OS series OS102011: a steel shell over a phenolic base, a square actuator through a

slot in the shell, three terminals in a row and a snap-in leg at each end. MS2Q stands upright (actuator up); MA1Q is the right-angle

version (actuator along -Y, parallel to the board). The origin is at terminal 2, on the board's top face (the XY plane); the terminals

and legs lie along X. Dimensions from C&K's data sheet, in the README."""

from steve import Model

kind = "MS2Q" # MS2Q: vertical (straight); MA1Q: right angle

position = 2 # Actuator position (1 or 2)

# Each entry: (shell length, shell width or depth, shell height, actuator out of the shell, actuator axis height (right angle only),

# base's lower edge above the board (4.7 less its distance below the top), right angle).

# C&K "OS Series, Miniature Slide Switches", 8 aug 17 (datasheet.lcsc.com copy), inches (mm):

# OS102011MS2QN1 (page I-37): shell .339 (8,60) x .169 (4,30), .185 (4,70) high; actuator .079 (2,00) square, .157 (4,00) above the

# shell; the base .157 (4,00) below the shell's top; the shell's top to the tips .295 (7,50).

# OS102011MA1QN1 (page I-42): shell .339 (8,60) long, .173 (4,40) deep, .185 (4,70) high; actuator .079 (2,00) square, .157 (4,00)

# out of the shell, its axis .102 (2,60) above the board; the base .154 (3,90) below the shell's top.

KINDS = {

"MS2Q": (8.6, 4.3, 4.7, 4.0, 0.0, 0.7, False),

"MA1Q": (8.6, 4.4, 4.7, 4.0, 2.6, 0.8, True),

}

# Both pages: actuator travel .079 (2,00); terminals 1-2-3 .079 (2,00) apart, .020 (0,50) wide and .012 (0,30) thick; the legs .016

# (0,40) thick and .047 (1,20) wide, their barbs .059 (1,50); the tips .110 (2,80) below the board. PC mounting: legs .323 (8,20) apart

# in 2X Ø.059 (1,50) holes, .083 (2,10) from terminals 1 and 3 in 3X Ø.031 (0,80) holes.

ACTUATOR = 2.0

TRAVEL = 2.0

PITCH = 2.0

PIN_W = 0.5

PIN_T = 0.3

LEG_T = 0.4

LEG_W = 1.2

BARB_W = 1.5

LEG_PITCH = 8.2

TIP = 2.8

# Proportions, for looks only (the drawings don't dimension them): the shell's sheet thickness (the legs' .016), where the barb sits on

# the leg, and the V notch in the actuator's end.

SHELL_T = 0.4

BARB = (-0.4, -1.4)

NOTCH = 0.6

if kind not in KINDS:

raise ValueError(f"no type {kind!r}: {', '.join(KINDS)}")

if position not in (1, 2):

raise ValueError("position is 1 or 2")

length, width, height, out, axis, base_low, angled = KINDS[kind]

slide = (position - 1.5) * TRAVEL # pos. 1 and 2 are a travel apart, centred on terminal 2

L, W = length / 2, width / 2

inner = L - SHELL_T

model = Model()

# Shell: the end walls (whose legs reach through the board), the top, and the long sides (upright) or the front face (right angle); the

# actuator's slot, the actuator plus its travel long, in the top (upright) or in the front face (right angle).

model.box("shell_top", length, width, SHELL_T, at=(0, 0, height - SHELL_T / 2), op="new", body="shell_body", name="Shell top")

for side, sx in (("right", 1), ("left", -1)):

model.box(f"end_{side}", SHELL_T, width, height, at=(sx * (L - SHELL_T / 2), 0, height / 2), op="join", body="shell_body",

name=f"End wall, {side}")

model.box(f"leg_{side}", LEG_T, LEG_W, TIP + 0.01, at=(sx * LEG_PITCH / 2, 0, -(TIP - 0.01) / 2), op="join", body="shell_body",

name=f"Leg, {side}")

model.box(f"barb_{side}", LEG_T, BARB_W, BARB[0] - BARB[1], at=(sx * LEG_PITCH / 2, 0, (BARB[0] + BARB[1]) / 2), op="join",

body="shell_body", name=f"Leg barb, {side}")

if angled:

model.box("shell_front", length, SHELL_T, height, at=(0, -W + SHELL_T / 2, height / 2), op="join", body="shell_body", name="Shell front")

model.box("slot", ACTUATOR + TRAVEL, SHELL_T + 0.2, ACTUATOR, at=(0, -W + SHELL_T / 2, axis), op="cut", body="shell_body", name="Slot")

else:

for side, sy in (("back", 1), ("front", -1)):

model.box(f"side_{side}", length, SHELL_T, height - base_low, at=(0, sy * (W - SHELL_T / 2), (height + base_low) / 2), op="join",

body="shell_body", name=f"Shell side, {side}")

model.box("slot", ACTUATOR + TRAVEL, ACTUATOR, SHELL_T + 0.2, at=(0, 0, height - SHELL_T / 2), op="cut", body="shell_body", name="Slot")

# Base: the phenolic block inside the shell, from its lower edge up to the top.

front = -W + SHELL_T

back = W if angled else W - SHELL_T # the right-angle shell has no back

model.box("base", 2 * inner, back - front, height - SHELL_T - base_low, at=(0, (front + back) / 2, (base_low + height - SHELL_T) / 2),

op="new", body="base_body", name="Base")

# Actuator: square, out of the slot by `out`, a V notch in its end.

if angled:

a_in = -W + SHELL_T

a_end = -W - out

model.box("actuator", ACTUATOR, a_in - a_end, ACTUATOR, at=(slide, (a_in + a_end) / 2, axis), op="new", body="actuator_body",

name="Actuator")

with model.sketch("notch_sketch", on="XY", name="Actuator notch") as sk:

sk.polyline("notch_outline", [(slide - NOTCH / 2, a_end - 0.01), (slide + NOTCH / 2, a_end - 0.01), (slide, a_end + NOTCH)],

closed=True)

model.extrude("notch", "notch_sketch", distance=height, op="cut", body="actuator_body", name="Actuator notch")

else:

a_low = height - SHELL_T

a_end = height + out

model.box("actuator", ACTUATOR, ACTUATOR, a_end - a_low, at=(slide, 0, (a_low + a_end) / 2), op="new", body="actuator_body",

name="Actuator")

model.plane("notch_plane", on="XZ", offset=-(ACTUATOR / 2 + 0.1), name="Actuator notch")

with model.sketch("notch_sketch", on="notch_plane", name="Actuator notch") as sk:

sk.polyline("notch_outline", [(slide - NOTCH / 2, a_end + 0.01), (slide + NOTCH / 2, a_end + 0.01), (slide, a_end - NOTCH)],

closed=True)

model.extrude("notch", "notch_sketch", distance=ACTUATOR + 0.2, op="cut", body="actuator_body", name="Actuator notch")

# Terminals 1-3: straight down from the base's lower edge to the tips.

for i in range(3):

model.box(f"terminal_{i + 1}", PIN_W, PIN_T, base_low + TIP, at=((i - 1) * PITCH, 0, (base_low - TIP) / 2), op="new",

body=f"terminal_{i + 1}_body", name=f"Terminal {i + 1}")

# Materials (page I-37, Materials): base phenolic resin (bakelite), actuator POM, black (pom-copolymer), housing plate SPCC, tin plated

# (steel-c10), terminals brass, silver plated (brass, silver coloured).

model.material("steel-c10", bodies=["shell_body"], color="#c9ccd0")

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model.material("bakelite", bodies=["base_body"], color="#a5562a")

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model.material("pom-copolymer", bodies=["actuator_body"], color="#222325")

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model.material("brass", bodies=[f"terminal_{i + 1}_body" for i in range(3)], color="#d6d8db")

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result = model.result()

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"""Miniature through-hole SPDT slide switch, C&K OS series OS102011: a steel shell over a phenolic base, a square actuator through a
slot in the shell, three terminals in a row and a snap-in leg at each end. MS2Q stands upright (actuator up); MA1Q is the right-angle
version (actuator along -Y, parallel to the board). The origin is at terminal 2, on the board's top face (the XY plane); the terminals
and legs lie along X. Dimensions from C&K's data sheet, in the README."""
from steve import Model

kind = "MS2Q"  # MS2Q: vertical (straight); MA1Q: right angle
position = 2  # Actuator position (1 or 2)

# Each entry: (shell length, shell width or depth, shell height, actuator out of the shell, actuator axis height (right angle only),
# base's lower edge above the board (4.7 less its distance below the top), right angle).
#   C&K "OS Series, Miniature Slide Switches", 8 aug 17 (datasheet.lcsc.com copy), inches (mm):
#   OS102011MS2QN1 (page I-37): shell .339 (8,60) x .169 (4,30), .185 (4,70) high; actuator .079 (2,00) square, .157 (4,00) above the
#   shell; the base .157 (4,00) below the shell's top; the shell's top to the tips .295 (7,50).
#   OS102011MA1QN1 (page I-42): shell .339 (8,60) long, .173 (4,40) deep, .185 (4,70) high; actuator .079 (2,00) square, .157 (4,00)
#   out of the shell, its axis .102 (2,60) above the board; the base .154 (3,90) below the shell's top.
KINDS = {
    "MS2Q": (8.6, 4.3, 4.7, 4.0, 0.0, 0.7, False),
    "MA1Q": (8.6, 4.4, 4.7, 4.0, 2.6, 0.8, True),
}
# Both pages: actuator travel .079 (2,00); terminals 1-2-3 .079 (2,00) apart, .020 (0,50) wide and .012 (0,30) thick; the legs .016
# (0,40) thick and .047 (1,20) wide, their barbs .059 (1,50); the tips .110 (2,80) below the board. PC mounting: legs .323 (8,20) apart
# in 2X Ø.059 (1,50) holes, .083 (2,10) from terminals 1 and 3 in 3X Ø.031 (0,80) holes.
ACTUATOR = 2.0
TRAVEL = 2.0
PITCH = 2.0
PIN_W = 0.5
PIN_T = 0.3
LEG_T = 0.4
LEG_W = 1.2
BARB_W = 1.5
LEG_PITCH = 8.2
TIP = 2.8
# Proportions, for looks only (the drawings don't dimension them): the shell's sheet thickness (the legs' .016), where the barb sits on
# the leg, and the V notch in the actuator's end.
SHELL_T = 0.4
BARB = (-0.4, -1.4)
NOTCH = 0.6

if kind not in KINDS:
    raise ValueError(f"no type {kind!r}: {', '.join(KINDS)}")
if position not in (1, 2):
    raise ValueError("position is 1 or 2")
length, width, height, out, axis, base_low, angled = KINDS[kind]
slide = (position - 1.5) * TRAVEL   # pos. 1 and 2 are a travel apart, centred on terminal 2
L, W = length / 2, width / 2
inner = L - SHELL_T

model = Model()
# Shell: the end walls (whose legs reach through the board), the top, and the long sides (upright) or the front face (right angle); the
# actuator's slot, the actuator plus its travel long, in the top (upright) or in the front face (right angle).
model.box("shell_top", length, width, SHELL_T, at=(0, 0, height - SHELL_T / 2), op="new", body="shell_body", name="Shell top")
for side, sx in (("right", 1), ("left", -1)):
    model.box(f"end_{side}", SHELL_T, width, height, at=(sx * (L - SHELL_T / 2), 0, height / 2), op="join", body="shell_body",
              name=f"End wall, {side}")
    model.box(f"leg_{side}", LEG_T, LEG_W, TIP + 0.01, at=(sx * LEG_PITCH / 2, 0, -(TIP - 0.01) / 2), op="join", body="shell_body",
              name=f"Leg, {side}")
    model.box(f"barb_{side}", LEG_T, BARB_W, BARB[0] - BARB[1], at=(sx * LEG_PITCH / 2, 0, (BARB[0] + BARB[1]) / 2), op="join",
              body="shell_body", name=f"Leg barb, {side}")
if angled:
    model.box("shell_front", length, SHELL_T, height, at=(0, -W + SHELL_T / 2, height / 2), op="join", body="shell_body", name="Shell front")
    model.box("slot", ACTUATOR + TRAVEL, SHELL_T + 0.2, ACTUATOR, at=(0, -W + SHELL_T / 2, axis), op="cut", body="shell_body", name="Slot")
else:
    for side, sy in (("back", 1), ("front", -1)):
        model.box(f"side_{side}", length, SHELL_T, height - base_low, at=(0, sy * (W - SHELL_T / 2), (height + base_low) / 2), op="join",
                  body="shell_body", name=f"Shell side, {side}")
    model.box("slot", ACTUATOR + TRAVEL, ACTUATOR, SHELL_T + 0.2, at=(0, 0, height - SHELL_T / 2), op="cut", body="shell_body", name="Slot")
# Base: the phenolic block inside the shell, from its lower edge up to the top.
front = -W + SHELL_T
back = W if angled else W - SHELL_T   # the right-angle shell has no back
model.box("base", 2 * inner, back - front, height - SHELL_T - base_low, at=(0, (front + back) / 2, (base_low + height - SHELL_T) / 2),
          op="new", body="base_body", name="Base")
# Actuator: square, out of the slot by `out`, a V notch in its end.
if angled:
    a_in = -W + SHELL_T
    a_end = -W - out
    model.box("actuator", ACTUATOR, a_in - a_end, ACTUATOR, at=(slide, (a_in + a_end) / 2, axis), op="new", body="actuator_body",
              name="Actuator")
    with model.sketch("notch_sketch", on="XY", name="Actuator notch") as sk:
        sk.polyline("notch_outline", [(slide - NOTCH / 2, a_end - 0.01), (slide + NOTCH / 2, a_end - 0.01), (slide, a_end + NOTCH)],
                    closed=True)
    model.extrude("notch", "notch_sketch", distance=height, op="cut", body="actuator_body", name="Actuator notch")
else:
    a_low = height - SHELL_T
    a_end = height + out
    model.box("actuator", ACTUATOR, ACTUATOR, a_end - a_low, at=(slide, 0, (a_low + a_end) / 2), op="new", body="actuator_body",
              name="Actuator")
    model.plane("notch_plane", on="XZ", offset=-(ACTUATOR / 2 + 0.1), name="Actuator notch")
    with model.sketch("notch_sketch", on="notch_plane", name="Actuator notch") as sk:
        sk.polyline("notch_outline", [(slide - NOTCH / 2, a_end + 0.01), (slide + NOTCH / 2, a_end + 0.01), (slide, a_end - NOTCH)],
                    closed=True)
    model.extrude("notch", "notch_sketch", distance=ACTUATOR + 0.2, op="cut", body="actuator_body", name="Actuator notch")
# Terminals 1-3: straight down from the base's lower edge to the tips.
for i in range(3):
    model.box(f"terminal_{i + 1}", PIN_W, PIN_T, base_low + TIP, at=((i - 1) * PITCH, 0, (base_low - TIP) / 2), op="new",
              body=f"terminal_{i + 1}_body", name=f"Terminal {i + 1}")
# Materials (page I-37, Materials): base phenolic resin (bakelite), actuator POM, black (pom-copolymer), housing plate SPCC, tin plated
# (steel-c10), terminals brass, silver plated (brass, silver coloured).
model.material("steel-c10", bodies=["shell_body"], color="#c9ccd0")
model.material("bakelite", bodies=["base_body"], color="#a5562a")
model.material("pom-copolymer", bodies=["actuator_body"], color="#222325")
model.material("brass", bodies=[f"terminal_{i + 1}_body" for i in range(3)], color="#d6d8db")
result = model.result()

pypart.toml 37 lines · TOML

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name = "steve/slide-switch-tht"

version = "1.0.0"

runtime = "steve"

license = "MIT"

summary = "Miniature through-hole SPDT slide switches, C&K OS102011: vertical (MS2Q) and right-angle (MA1Q), from C&K's OS series data sheet."

description = """Miniature through-hole SPDT slide switch, C&K OS series OS102011, from C&K's data sheet (8 aug 17): a steel shell 8.6 long and 4.7 high over a phenolic base, a 2.0 mm square actuator with 2.0 mm travel, three terminals on a 2.0 mm pitch and a snap-in leg at each end, 8.2 apart. MS2Q stands upright with the actuator 4.0 above the shell; MA1Q is the right-angle version with the actuator 4.0 out of the shell's front, 2.6 above the board. See the README."""

tags = ["slide-switch", "switch", "spdt", "through-hole", "c-and-k", "electronics"]

[parameters.kind]

type = "choice"

default = "MS2Q"

choices = ["MS2Q", "MA1Q"]

label = "Type"

description = "MS2Q: vertical (actuator up); MA1Q: right angle (actuator parallel to the board)."

[parameters.position]

type = "integer"

default = 2

min = 1

max = 2

label = "Actuator position"

description = "1 or 2 (the data sheet draws position 2)."

[[presets]]

id = "os102011ms2q"

title = "C&K OS102011MS2Q, SPDT miniature slide switch, vertical"

params = { kind = "MS2Q" }

aliases = ["C&K OS102011MS2Q", "OS102011MS2QN1", "OS102011MS2QN1C", "OS102011MS2QS1", "OS102011MS2QS1C"]

standard = "C&K OS"

[[presets]]

id = "os102011ma1q"

title = "C&K OS102011MA1Q, SPDT miniature slide switch, right angle"

params = { kind = "MA1Q" }

aliases = ["C&K OS102011MA1Q", "OS102011MA1QN1", "OS102011MA1QN1C", "OS102011MA1QS1", "OS102011MA1QS1C"]

standard = "C&K OS"

name = "steve/slide-switch-tht"
version = "1.0.0"
runtime = "steve"
license = "MIT"
summary = "Miniature through-hole SPDT slide switches, C&K OS102011: vertical (MS2Q) and right-angle (MA1Q), from C&K's OS series data sheet."
description = """Miniature through-hole SPDT slide switch, C&K OS series OS102011, from C&K's data sheet (8 aug 17): a steel shell 8.6 long and 4.7 high over a phenolic base, a 2.0 mm square actuator with 2.0 mm travel, three terminals on a 2.0 mm pitch and a snap-in leg at each end, 8.2 apart. MS2Q stands upright with the actuator 4.0 above the shell; MA1Q is the right-angle version with the actuator 4.0 out of the shell's front, 2.6 above the board. See the README."""
tags = ["slide-switch", "switch", "spdt", "through-hole", "c-and-k", "electronics"]

[parameters.kind]
type = "choice"
default = "MS2Q"
choices = ["MS2Q", "MA1Q"]
label = "Type"
description = "MS2Q: vertical (actuator up); MA1Q: right angle (actuator parallel to the board)."

[parameters.position]
type = "integer"
default = 2
min = 1
max = 2
label = "Actuator position"
description = "1 or 2 (the data sheet draws position 2)."

[[presets]]
id = "os102011ms2q"
title = "C&K OS102011MS2Q, SPDT miniature slide switch, vertical"
params = { kind = "MS2Q" }
aliases = ["C&K OS102011MS2Q", "OS102011MS2QN1", "OS102011MS2QN1C", "OS102011MS2QS1", "OS102011MS2QS1C"]
standard = "C&K OS"

[[presets]]
id = "os102011ma1q"
title = "C&K OS102011MA1Q, SPDT miniature slide switch, right angle"
params = { kind = "MA1Q" }
aliases = ["C&K OS102011MA1Q", "OS102011MA1QN1", "OS102011MA1QN1C", "OS102011MA1QS1", "OS102011MA1QS1C"]
standard = "C&K OS"

README.md 60 lines · Markdown

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Through-hole slide switch, miniature SPDT

A miniature through-hole SPDT slide switch, C&K's OS series OS102011. It has a steel shell over a phenolic base, a square actuator through a slot in the shell, three terminals in a row, and a snap-in leg at each end. MS2Q stands upright with the actuator on top. MA1Q is the right-angle version: the actuator comes out of the shell's front, parallel to the board.

The origin is at terminal 2, on the board's top face (the XY plane). The terminals and legs lie along X. The right-angle actuator points along -Y.

kind is the type. position is where the actuator sits: positions 1 and 2 are the travel apart, centred on terminal 2 (position 1 connects terminals 1-2, position 2 connects 2-3).

Type	Parts	Shell (long x wide/deep x high)	Actuator	Base's lower edge
MS2Q	OS102011MS2QN1, MS2QN1C, MS2QS1, MS2QS1C	8.6 x 4.3 x 4.7	2.0 square, 4.0 above the shell	4.0 below the shell's top (0.7 above the board)
MA1Q	OS102011MA1QN1, MA1QN1C, MA1QS1, MA1QS1C	8.6 x 4.4 x 4.7	2.0 square, 4.0 out of the front, its axis 2.6 above the board	3.9 below the shell's top (0.8 above the board)

N1 parts are non-shorting and S1 shorting. A trailing C means a high-temperature actuator. All four are the same size.

For both types:

The actuator travel is 2.0.
Terminals 1, 2 and 3 are 2.0 apart, 0.5 wide and 0.3 thick.
The legs are 0.4 thick and 1.2 wide, with barbs 1.5 wide, and are 8.2 apart.
The terminals and legs reach 2.8 below the board. The vertical type's shell top is 7.5 above the tips.
PC mounting: the terminals go in Ø0.8 holes, and the legs in Ø1.5 holes, 2.1 from terminals 1 and 3.

Source

C&K, OS Series, Miniature Slide Switches, dated 8 aug 17, catalogue pages I-37 to I-43, from the copy at datasheet.lcsc.com (https://datasheet.lcsc.com/datasheet/pdf/9e68893bade4341f8dc17b91bf8fc979.pdf, LCSC part C221829; C&K's own site isn't used). Dimensions are in inches (mm); the mm values are used here.

Page I-37, OS102011MS2QN1: shell .339 (8,60) x .169 (4,30), .185 (4,70) high; actuator .079 (2,00) square, .157 (4,00) above the shell; the base .157 (4,00) below the shell's top; shell top to the tips .295 (7,50); terminals .079 (2,00) apart, .020 (0,50) wide, .012 (0,30) thick; legs .016 (0,40) thick and .047 (1,20) wide, barbs .059 (1,50); tips .110 (2,80) below; travel .079 (2,00). PC mounting: .323 (8,20), .083 (2,10), 3X Ø.031 (0,80), 2X Ø.059 (1,50).
Page I-42, OS102011MA1QN1: shell .339 (8,60) long, .173 (4,40) deep, .185 (4,70) high; actuator .079 (2,00) square, .157 (4,00) out of the shell, its axis .102 (2,60) above the board; the base .154 (3,90) below the shell's top; terminals, legs, travel and PC mounting as on I-37.
Page I-37, Materials: base phenolic resin; actuator POM, black (high temperature: PA46, black); housing plate SPCC, tin plated (Ni plated for the RoHS-compatible C parts); terminals brass, silver plated.

The sheet gives no weight.

Proportions, for looks only. The drawings don't dimension the following:

The shell's sheet thickness, 0.4, as the legs'.
Where the barb sits on the leg: from 0.4 to 1.4 below the board.
The V notch in the actuator's end, 0.6 wide and deep.
The shell is drawn as plain plates: on the vertical type the top, the long sides down to the base's lower edge, and the end walls down to the board; on the right-angle type the top, the front (with the slot) and the end walls. The slot is the actuator plus its travel long.

Materials follow the sheet: the shell sheet steel (steel-c10), the base phenolic (bakelite), the actuator black POM (pom-copolymer), and the terminals brass (brass), silver coloured. Mass check: the sheet states no weight. As modelled, MS2Q is 0.41 g shell + 0.13 g base + 0.02 g actuator + 0.01 g terminals = 0.57 g, and MA1Q is 0.52 g.

Catalogue models

The old SW Slide SPDT Straight CK OS102011MS2Q and SW Slide SPDT Angled CK OS102011MA1Q models name these exact parts, so they map to MS2Q and MA1Q. They were measured on the reference models (2026-11-06):

	Old models	C&K drawing
MS2Q shell	8.6 x 4.3 x 4.7	8.6 x 4.3 x 4.7
MS2Q actuator	2.0 square, 4.0 above the shell, a V notch	2.0 square, 4.0 above the shell
MS2Q base	0.7 above the board, with four feet down to 0.3	0.7 above the board
MA1Q shell	8.6 x 4.4 x 4.7	8.6 x 4.4 x 4.7
MA1Q actuator	2.0 square, 4.0 out, axis 2.6 above the board	2.0 square, 4.0 out, axis 2.6
MA1Q base	0.8 above the board	0.8 above the board
Terminals	0.5 x 0.3, 2.0 apart, 2.8 below	0.5 x 0.3, 2.0 apart, 2.8 below
Legs	0.4 thick, 8.2 apart, up to 1.07 wide, narrowing to 0.59 at the tip	0.4 thick, 8.2 apart, 1.2 wide, barbs 1.5
Actuator position	between terminals 1 and 2 (position 1)	drawn in position 2

The family's other switches (DIP switches, tactile switches and other makers' switches) are other parts. See COVERAGE.md.

# Through-hole slide switch, miniature SPDT

The origin is at terminal 2, on the board's top face (the XY plane). The terminals and legs lie along X. The right-angle actuator points along -Y.

`kind` is the type. `position` is where the actuator sits: positions 1 and 2 are the travel apart, centred on terminal 2 (position 1 connects terminals 1-2, position 2 connects 2-3).

|---|---|---|---|---|

N1 parts are non-shorting and S1 shorting. A trailing C means a high-temperature actuator. All four are the same size.

For both types:

- The actuator travel is 2.0.

- Terminals 1, 2 and 3 are 2.0 apart, 0.5 wide and 0.3 thick.

- The legs are 0.4 thick and 1.2 wide, with barbs 1.5 wide, and are 8.2 apart.

- The terminals and legs reach 2.8 below the board. The vertical type's shell top is 7.5 above the tips.

- PC mounting: the terminals go in Ø0.8 holes, and the legs in Ø1.5 holes, 2.1 from terminals 1 and 3.

## Source

C&K, *OS Series, Miniature Slide Switches*, dated 8 aug 17, catalogue pages I-37 to I-43, from the copy at datasheet.lcsc.com (<https://datasheet.lcsc.com/datasheet/pdf/9e68893bade4341f8dc17b91bf8fc979.pdf>, LCSC part C221829; C&K's own site isn't used). Dimensions are in inches (mm); the mm values are used here.

- Page I-37, OS102011MS2QN1: shell .339 (8,60) x .169 (4,30), .185 (4,70) high; actuator .079 (2,00) square, .157 (4,00) above the shell; the base .157 (4,00) below the shell's top; shell top to the tips .295 (7,50); terminals .079 (2,00) apart, .020 (0,50) wide, .012 (0,30) thick; legs .016 (0,40) thick and .047 (1,20) wide, barbs .059 (1,50); tips .110 (2,80) below; travel .079 (2,00). PC mounting: .323 (8,20), .083 (2,10), 3X Ø.031 (0,80), 2X Ø.059 (1,50).

- Page I-42, OS102011MA1QN1: shell .339 (8,60) long, .173 (4,40) deep, .185 (4,70) high; actuator .079 (2,00) square, .157 (4,00) out of the shell, its axis .102 (2,60) above the board; the base .154 (3,90) below the shell's top; terminals, legs, travel and PC mounting as on I-37.

- Page I-37, Materials: base phenolic resin; actuator POM, black (high temperature: PA46, black); housing plate SPCC, tin plated (Ni plated for the RoHS-compatible C parts); terminals brass, silver plated.

The sheet gives no weight.

**Proportions, for looks only.** The drawings don't dimension the following:

- The shell's sheet thickness, 0.4, as the legs'.

- Where the barb sits on the leg: from 0.4 to 1.4 below the board.

- The V notch in the actuator's end, 0.6 wide and deep.

- The shell is drawn as plain plates: on the vertical type the top, the long sides down to the base's lower edge, and the end walls down to the board; on the right-angle type the top, the front (with the slot) and the end walls. The slot is the actuator plus its travel long.

Materials follow the sheet: the shell sheet steel (`steel-c10`), the base phenolic (`bakelite`), the actuator black POM (`pom-copolymer`), and the terminals brass (`brass`), silver coloured. **Mass check:** the sheet states no weight. As modelled, MS2Q is 0.41 g shell + 0.13 g base + 0.02 g actuator + 0.01 g terminals = 0.57 g, and MA1Q is 0.52 g.

## Catalogue models

The old `SW Slide SPDT Straight CK OS102011MS2Q` and `SW Slide SPDT Angled CK OS102011MA1Q` models name these exact parts, so they map to MS2Q and MA1Q. They were measured on the reference models (2026-11-06):

| | Old models | C&K drawing |

|---|---|---|

| MS2Q shell | 8.6 x 4.3 x 4.7 | 8.6 x 4.3 x 4.7 |

| MS2Q actuator | 2.0 square, 4.0 above the shell, a V notch | 2.0 square, 4.0 above the shell |

| MS2Q base | 0.7 above the board, with four feet down to 0.3 | 0.7 above the board |

| MA1Q shell | 8.6 x 4.4 x 4.7 | 8.6 x 4.4 x 4.7 |

| MA1Q actuator | 2.0 square, 4.0 out, axis 2.6 above the board | 2.0 square, 4.0 out, axis 2.6 |

| MA1Q base | 0.8 above the board | 0.8 above the board |

| Terminals | 0.5 x 0.3, 2.0 apart, 2.8 below | 0.5 x 0.3, 2.0 apart, 2.8 below |

| Legs | 0.4 thick, 8.2 apart, up to 1.07 wide, narrowing to 0.59 at the tip | 0.4 thick, 8.2 apart, 1.2 wide, barbs 1.5 |

| Actuator position | between terminals 1 and 2 (position 1) | drawn in position 2 |

The family's other switches (DIP switches, tactile switches and other makers' switches) are other parts. See `COVERAGE.md`.

# Through-hole slide switch, miniature SPDT

A miniature through-hole SPDT slide switch, C&K's OS series OS102011. It has a steel shell over a phenolic base, a square actuator through a slot in the shell, three terminals in a row, and a snap-in leg at each end. MS2Q stands upright with the actuator on top. MA1Q is the right-angle version: the actuator comes out of the shell's front, parallel to the board.

The origin is at terminal 2, on the board's top face (the XY plane). The terminals and legs lie along X. The right-angle actuator points along -Y.

`kind` is the type. `position` is where the actuator sits: positions 1 and 2 are the travel apart, centred on terminal 2 (position 1 connects terminals 1-2, position 2 connects 2-3).

| Type | Parts | Shell (long x wide/deep x high) | Actuator | Base's lower edge |
|---|---|---|---|---|
| MS2Q | OS102011MS2QN1, MS2QN1C, MS2QS1, MS2QS1C | 8.6 x 4.3 x 4.7 | 2.0 square, 4.0 above the shell | 4.0 below the shell's top (0.7 above the board) |
| MA1Q | OS102011MA1QN1, MA1QN1C, MA1QS1, MA1QS1C | 8.6 x 4.4 x 4.7 | 2.0 square, 4.0 out of the front, its axis 2.6 above the board | 3.9 below the shell's top (0.8 above the board) |

N1 parts are non-shorting and S1 shorting. A trailing C means a high-temperature actuator. All four are the same size.

For both types:

- The actuator travel is 2.0.
- Terminals 1, 2 and 3 are 2.0 apart, 0.5 wide and 0.3 thick.
- The legs are 0.4 thick and 1.2 wide, with barbs 1.5 wide, and are 8.2 apart.
- The terminals and legs reach 2.8 below the board. The vertical type's shell top is 7.5 above the tips.
- PC mounting: the terminals go in Ø0.8 holes, and the legs in Ø1.5 holes, 2.1 from terminals 1 and 3.

## Source

C&K, *OS Series, Miniature Slide Switches*, dated 8 aug 17, catalogue pages I-37 to I-43, from the copy at datasheet.lcsc.com (<https://datasheet.lcsc.com/datasheet/pdf/9e68893bade4341f8dc17b91bf8fc979.pdf>, LCSC part C221829; C&K's own site isn't used). Dimensions are in inches (mm); the mm values are used here.

- Page I-37, OS102011MS2QN1: shell .339 (8,60) x .169 (4,30), .185 (4,70) high; actuator .079 (2,00) square, .157 (4,00) above the shell; the base .157 (4,00) below the shell's top; shell top to the tips .295 (7,50); terminals .079 (2,00) apart, .020 (0,50) wide, .012 (0,30) thick; legs .016 (0,40) thick and .047 (1,20) wide, barbs .059 (1,50); tips .110 (2,80) below; travel .079 (2,00). PC mounting: .323 (8,20), .083 (2,10), 3X Ø.031 (0,80), 2X Ø.059 (1,50).
- Page I-42, OS102011MA1QN1: shell .339 (8,60) long, .173 (4,40) deep, .185 (4,70) high; actuator .079 (2,00) square, .157 (4,00) out of the shell, its axis .102 (2,60) above the board; the base .154 (3,90) below the shell's top; terminals, legs, travel and PC mounting as on I-37.
- Page I-37, Materials: base phenolic resin; actuator POM, black (high temperature: PA46, black); housing plate SPCC, tin plated (Ni plated for the RoHS-compatible C parts); terminals brass, silver plated.

The sheet gives no weight.

**Proportions, for looks only.** The drawings don't dimension the following:

- The shell's sheet thickness, 0.4, as the legs'.
- Where the barb sits on the leg: from 0.4 to 1.4 below the board.
- The V notch in the actuator's end, 0.6 wide and deep.
- The shell is drawn as plain plates: on the vertical type the top, the long sides down to the base's lower edge, and the end walls down to the board; on the right-angle type the top, the front (with the slot) and the end walls. The slot is the actuator plus its travel long.

Materials follow the sheet: the shell sheet steel (`steel-c10`), the base phenolic (`bakelite`), the actuator black POM (`pom-copolymer`), and the terminals brass (`brass`), silver coloured. **Mass check:** the sheet states no weight. As modelled, MS2Q is 0.41 g shell + 0.13 g base + 0.02 g actuator + 0.01 g terminals = 0.57 g, and MA1Q is 0.52 g.

## Catalogue models

The old `SW Slide SPDT Straight CK OS102011MS2Q` and `SW Slide SPDT Angled CK OS102011MA1Q` models name these exact parts, so they map to MS2Q and MA1Q. They were measured on the reference models (2026-11-06):

| | Old models | C&K drawing |
|---|---|---|
| MS2Q shell | 8.6 x 4.3 x 4.7 | 8.6 x 4.3 x 4.7 |
| MS2Q actuator | 2.0 square, 4.0 above the shell, a V notch | 2.0 square, 4.0 above the shell |
| MS2Q base | 0.7 above the board, with four feet down to 0.3 | 0.7 above the board |
| MA1Q shell | 8.6 x 4.4 x 4.7 | 8.6 x 4.4 x 4.7 |
| MA1Q actuator | 2.0 square, 4.0 out, axis 2.6 above the board | 2.0 square, 4.0 out, axis 2.6 |
| MA1Q base | 0.8 above the board | 0.8 above the board |
| Terminals | 0.5 x 0.3, 2.0 apart, 2.8 below | 0.5 x 0.3, 2.0 apart, 2.8 below |
| Legs | 0.4 thick, 8.2 apart, up to 1.07 wide, narrowing to 0.59 at the tip | 0.4 thick, 8.2 apart, 1.2 wide, barbs 1.5 |
| Actuator position | between terminals 1 and 2 (position 1) | drawn in position 2 |

The family's other switches (DIP switches, tactile switches and other makers' switches) are other parts. See `COVERAGE.md`.

Use this part

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curl -o part.py "https://pythonparts.org/p/steve/slide-switch-tht/v/1.0.0/raw/part.py"

Raw files, bundle and API

part.py
pypart.toml
README.md
bundle.tar.gzthe package, as published

curl "https://pythonparts.org/api/v1/parts/steve/slide-switch-tht/1.0.0"

The version's JSON (parameters, presets, files); add /build?name=value for a build at other values.

About this part

steve132 parts

Profile

C10 (1.0301)Carbon & alloy steels · Custom finish · 7.8 g/cm³
Bakelite (phenolic)Plastics · Custom finish · 1.3 g/cm³
Acetal copolymer (POM-C)Plastics · Custom finish · 1.41 g/cm³
Brass (generic)Copper alloys · Custom finish · 8.6 g/cm³

Mass: 0.57 g

At the parameters shown in the viewer, 6 bodies.

License: MIT

Permissive: use, change and sell it; keep the copyright notice.

Runtime: STEVE
Requirements: None stated in the code
Built with: CadQuery 2.9.0.dev0
Published: Nov 6, 2026
Downloads: 0
Builds: 0
Stars: 0
Bundle: 720d0b0daf6c…

#slide-switch #switch #spdt #through-hole #c-and-k #electronics

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Miniature through-hole SPDT slide switch, C&K OS series OS102011, from C&K's data sheet (8 aug 17): a steel shell 8.6 long and 4.7 high over a phenolic base, a 2.0 mm square actuator with 2.0 mm travel, three terminals on a 2.0 mm pitch and a snap-in leg at each end, 8.2 apart. MS2Q stands upright with the actuator 4.0 above the shell; MA1Q is the right-angle version with the actuator 4.0 out of the shell's front, 2.6 above the board. See the README.

Through-hole slide switch, miniature SPDT

The origin is at terminal 2, on the board's top face (the XY plane). The terminals and legs lie along X. The right-angle actuator points along -Y.

kind is the type. position is where the actuator sits: positions 1 and 2 are the travel apart, centred on terminal 2 (position 1 connects terminals 1-2, position 2 connects 2-3).

Type	Parts	Shell (long x wide/deep x high)	Actuator	Base's lower edge
MS2Q	OS102011MS2QN1, MS2QN1C, MS2QS1, MS2QS1C	8.6 x 4.3 x 4.7	2.0 square, 4.0 above the shell	4.0 below the shell's top (0.7 above the board)
MA1Q	OS102011MA1QN1, MA1QN1C, MA1QS1, MA1QS1C	8.6 x 4.4 x 4.7	2.0 square, 4.0 out of the front, its axis 2.6 above the board	3.9 below the shell's top (0.8 above the board)

N1 parts are non-shorting and S1 shorting. A trailing C means a high-temperature actuator. All four are the same size.

For both types:

The actuator travel is 2.0.
Terminals 1, 2 and 3 are 2.0 apart, 0.5 wide and 0.3 thick.
The legs are 0.4 thick and 1.2 wide, with barbs 1.5 wide, and are 8.2 apart.
The terminals and legs reach 2.8 below the board. The vertical type's shell top is 7.5 above the tips.
PC mounting: the terminals go in Ø0.8 holes, and the legs in Ø1.5 holes, 2.1 from terminals 1 and 3.

Source

Page I-37, OS102011MS2QN1: shell .339 (8,60) x .169 (4,30), .185 (4,70) high; actuator .079 (2,00) square, .157 (4,00) above the shell; the base .157 (4,00) below the shell's top; shell top to the tips .295 (7,50); terminals .079 (2,00) apart, .020 (0,50) wide, .012 (0,30) thick; legs .016 (0,40) thick and .047 (1,20) wide, barbs .059 (1,50); tips .110 (2,80) below; travel .079 (2,00). PC mounting: .323 (8,20), .083 (2,10), 3X Ø.031 (0,80), 2X Ø.059 (1,50).
Page I-42, OS102011MA1QN1: shell .339 (8,60) long, .173 (4,40) deep, .185 (4,70) high; actuator .079 (2,00) square, .157 (4,00) out of the shell, its axis .102 (2,60) above the board; the base .154 (3,90) below the shell's top; terminals, legs, travel and PC mounting as on I-37.
Page I-37, Materials: base phenolic resin; actuator POM, black (high temperature: PA46, black); housing plate SPCC, tin plated (Ni plated for the RoHS-compatible C parts); terminals brass, silver plated.

The sheet gives no weight.

Proportions, for looks only. The drawings don't dimension the following:

The shell's sheet thickness, 0.4, as the legs'.
Where the barb sits on the leg: from 0.4 to 1.4 below the board.
The V notch in the actuator's end, 0.6 wide and deep.
The shell is drawn as plain plates: on the vertical type the top, the long sides down to the base's lower edge, and the end walls down to the board; on the right-angle type the top, the front (with the slot) and the end walls. The slot is the actuator plus its travel long.

Catalogue models

	Old models	C&K drawing
MS2Q shell	8.6 x 4.3 x 4.7	8.6 x 4.3 x 4.7
MS2Q actuator	2.0 square, 4.0 above the shell, a V notch	2.0 square, 4.0 above the shell
MS2Q base	0.7 above the board, with four feet down to 0.3	0.7 above the board
MA1Q shell	8.6 x 4.4 x 4.7	8.6 x 4.4 x 4.7
MA1Q actuator	2.0 square, 4.0 out, axis 2.6 above the board	2.0 square, 4.0 out, axis 2.6
MA1Q base	0.8 above the board	0.8 above the board
Terminals	0.5 x 0.3, 2.0 apart, 2.8 below	0.5 x 0.3, 2.0 apart, 2.8 below
Legs	0.4 thick, 8.2 apart, up to 1.07 wide, narrowing to 0.59 at the tip	0.4 thick, 8.2 apart, 1.2 wide, barbs 1.5
Actuator position	between terminals 1 and 2 (position 1)	drawn in position 2

The family's other switches (DIP switches, tactile switches and other makers' switches) are other parts. See COVERAGE.md.

1.1.0 Latest Nov 6, 2026 · 1 hour ago Compare with 1.0.0
1.0.0 Nov 6, 2026 · 1 hour ago

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