steve/pcb-relay

Through-hole PCB relays from Omron's data sheets: G2RL-2 power relay, G5V-1 and G5V-2 signal relays, G6A and G6AK signal relays.

v1.0.0 STEVE MIT 0

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Isometric

Parameters

Preset5 sizes

Relay type5 options

Defaults built

part.py 63 lines · Python · STEVE runtime · checked

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"""Through-hole PCB relay: Omron G2RL-2, G5V-1, G5V-2, G6A and G6AK. A closed case on the XY plane with the pins down through the board.

Pin 1 is at the origin; the pins are placed as the maker's bottom-view PCB layout draws them, seen from above (the layout turned over

about its horizontal axis): along it to +X, its next row towards +Y. Dimensions from the makers' data sheets in the README."""

from steve import Model

kind = "G6A" # Relay type

# kind: (case length along X, width along Y, height above the board; solder pin length below the board, pin across X, pin across Y;

# pin 1 from the case's -X end, from its -Y side; pins (x, y) from pin 1). The case sizes are the data sheets' average values.

# Omron G2RL, Cat. No. J117-E1-17, Dimensions p. 6, G2RL-2: 29 max. (28.8 average) x 12.7 max. (12.5) x 15.7 max. (15.5), terminals 3.5 long,

# 0.5 x 0.8; PCB mounting holes (bottom view): columns at 0, 15, 20, 25 (20 from pin 1 to the third, 5 apart), rows 7.5 apart, (2.3) from

# the case end and (2.5) from its side. Weight approx. 12 g (p. 2).

# Omron G5V-1, Cat. No. K048-E1-07, Dimensions p. 4: 12.5 max. (12.3) x 7.5 max. (7.3) x 10 max. (9.9), terminals 3.5 long, 0.5 x 0.3;

# holes at 0, 2.54 and 10.16, rows 5.08 apart, (1.07) and (1.11) from the case. Weight approx. 2 g.

# Omron G5V-2, Cat. No. K046-E1-06, Dimensions p. 4: 20.5 max. (20.3) x 10.1 max. (9.9) x 11.5 max. (11.4), terminals 3.5 long,

# 0.5 x 0.3; holes at 0, 7.62, 12.7, 17.78, rows 7.62 apart, (1.3) and (1.2) from the case. Weight approx. 5 g.

# Omron G6A, Cat. No. K020-E1-15, Dimensions p. 8: 20.2 max. (20) x 10.1 max. (9.9) x 8.4 max. (8.2), terminals 3.16 long, 0.6 x 0.3;

# G6A-274P: holes at 0, 7.62, 12.7, 17.78, rows 7.62 apart, (1.2) from the case; G6AK-274P (double-winding latching): also at 2.54,

# ten holes. Weight approx. 3.5 g (p. 2).

RELAYS = {

"G2RL-2": (28.8, 12.5, 15.5, 3.5, 0.5, 0.8, 2.3, 2.5, ((0, 0), (15, 0), (20, 0), (25, 0), (0, 7.5), (15, 7.5), (20, 7.5), (25, 7.5))),

"G5V-1": (12.3, 7.3, 9.9, 3.5, 0.5, 0.3, 1.07, 1.11, ((0, 0), (2.54, 0), (10.16, 0), (0, 5.08), (2.54, 5.08), (10.16, 5.08))),

"G5V-2": (20.3, 9.9, 11.4, 3.5, 0.5, 0.3, 1.3, 1.2,

((0, 0), (7.62, 0), (12.7, 0), (17.78, 0), (0, 7.62), (7.62, 7.62), (12.7, 7.62), (17.78, 7.62))),

"G6A": (20.0, 9.9, 8.2, 3.16, 0.6, 0.3, 1.2, 1.2,

((0, 0), (7.62, 0), (12.7, 0), (17.78, 0), (0, 7.62), (7.62, 7.62), (12.7, 7.62), (17.78, 7.62))),

"G6AK": (20.0, 9.9, 8.2, 3.16, 0.6, 0.3, 1.2, 1.2,

((0, 0), (2.54, 0), (7.62, 0), (12.7, 0), (17.78, 0), (0, 7.62), (2.54, 7.62), (7.62, 7.62), (12.7, 7.62), (17.78, 7.62))),

}

# Proportions (the data sheets don't dimension the inside): the case is a cover WALL thick over a base plate as thick; the coil, core and contacts inside are one

# copper block filling FILL of the space inside the case, standing on its floor, so that the mass comes out near the data sheets' weights.

WALL = 0.5

FILL = 0.27

if kind not in RELAYS:

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

length, width, height, pin_length, pin_x, pin_y, from_end, from_side, pins = RELAYS[kind]

# Pin 1's place in the case: the PCB layouts' bracketed distances from pin 1 to the case's end and side (the far end takes what's left

# of the average case size).

x0 = -from_end

y0 = -from_side

model = Model()

# The case: a cover, open underneath, over a base plate WALL thick that closes it.

model.box("case", length, width, height, at=(x0 + length / 2, y0 + width / 2, height / 2), op="new", body="case_body", name="Cover")

inner = (length - 2 * WALL, width - 2 * WALL, height - 2 * WALL)

model.box("inside", inner[0], inner[1], height - WALL, at=(x0 + length / 2, y0 + width / 2, (height - WALL) / 2), op="cut", body="case_body",

name="Inside")

model.box("base", inner[0], inner[1], WALL, at=(x0 + length / 2, y0 + width / 2, WALL / 2), op="new", body="base_body", name="Base")

scale = FILL ** (1 / 3)

core = (inner[0] * scale, inner[1] * scale, inner[2] * scale)

model.box("coil", core[0], core[1], core[2], at=(x0 + length / 2, y0 + width / 2, WALL + core[2] / 2), op="new", body="coil_body",

name="Coil and contacts")

pin_bodies = []

for i, (x, y) in enumerate(pins):

model.box(f"pin_{i + 1}", pin_x, pin_y, pin_length, at=(x, y, -pin_length / 2), op="new", body=f"pin_{i + 1}_body", name=f"Pin {i + 1}")

pin_bodies.append(f"pin_{i + 1}_body")

# Materials, for looks and a rough mass (the data sheets name none): a black plastic case (pa6), the inside copper, tin-plated pins.

model.material("pa6", bodies=["case_body", "base_body"], color="#1d1e20")

model.material("copper", bodies=["coil_body"], color="#b87333")

model.material("copper", bodies=pin_bodies, color="#c9cbc8")

result = model.result()

"""Through-hole PCB relay: Omron G2RL-2, G5V-1, G5V-2, G6A and G6AK. A closed case on the XY plane with the pins down through the board.
Pin 1 is at the origin; the pins are placed as the maker's bottom-view PCB layout draws them, seen from above (the layout turned over
about its horizontal axis): along it to +X, its next row towards +Y. Dimensions from the makers' data sheets in the README."""
from steve import Model

kind = "G6A"  # Relay type

# kind: (case length along X, width along Y, height above the board; solder pin length below the board, pin across X, pin across Y;
# pin 1 from the case's -X end, from its -Y side; pins (x, y) from pin 1). The case sizes are the data sheets' average values.
# Omron G2RL, Cat. No. J117-E1-17, Dimensions p. 6, G2RL-2: 29 max. (28.8 average) x 12.7 max. (12.5) x 15.7 max. (15.5), terminals 3.5 long,
#   0.5 x 0.8; PCB mounting holes (bottom view): columns at 0, 15, 20, 25 (20 from pin 1 to the third, 5 apart), rows 7.5 apart, (2.3) from
#   the case end and (2.5) from its side. Weight approx. 12 g (p. 2).
# Omron G5V-1, Cat. No. K048-E1-07, Dimensions p. 4: 12.5 max. (12.3) x 7.5 max. (7.3) x 10 max. (9.9), terminals 3.5 long, 0.5 x 0.3;
#   holes at 0, 2.54 and 10.16, rows 5.08 apart, (1.07) and (1.11) from the case. Weight approx. 2 g.
# Omron G5V-2, Cat. No. K046-E1-06, Dimensions p. 4: 20.5 max. (20.3) x 10.1 max. (9.9) x 11.5 max. (11.4), terminals 3.5 long,
#   0.5 x 0.3; holes at 0, 7.62, 12.7, 17.78, rows 7.62 apart, (1.3) and (1.2) from the case. Weight approx. 5 g.
# Omron G6A, Cat. No. K020-E1-15, Dimensions p. 8: 20.2 max. (20) x 10.1 max. (9.9) x 8.4 max. (8.2), terminals 3.16 long, 0.6 x 0.3;
#   G6A-274P: holes at 0, 7.62, 12.7, 17.78, rows 7.62 apart, (1.2) from the case; G6AK-274P (double-winding latching): also at 2.54,
#   ten holes. Weight approx. 3.5 g (p. 2).
RELAYS = {
    "G2RL-2": (28.8, 12.5, 15.5, 3.5, 0.5, 0.8, 2.3, 2.5, ((0, 0), (15, 0), (20, 0), (25, 0), (0, 7.5), (15, 7.5), (20, 7.5), (25, 7.5))),
    "G5V-1": (12.3, 7.3, 9.9, 3.5, 0.5, 0.3, 1.07, 1.11, ((0, 0), (2.54, 0), (10.16, 0), (0, 5.08), (2.54, 5.08), (10.16, 5.08))),
    "G5V-2": (20.3, 9.9, 11.4, 3.5, 0.5, 0.3, 1.3, 1.2,
              ((0, 0), (7.62, 0), (12.7, 0), (17.78, 0), (0, 7.62), (7.62, 7.62), (12.7, 7.62), (17.78, 7.62))),
    "G6A": (20.0, 9.9, 8.2, 3.16, 0.6, 0.3, 1.2, 1.2,
            ((0, 0), (7.62, 0), (12.7, 0), (17.78, 0), (0, 7.62), (7.62, 7.62), (12.7, 7.62), (17.78, 7.62))),
    "G6AK": (20.0, 9.9, 8.2, 3.16, 0.6, 0.3, 1.2, 1.2,
             ((0, 0), (2.54, 0), (7.62, 0), (12.7, 0), (17.78, 0), (0, 7.62), (2.54, 7.62), (7.62, 7.62), (12.7, 7.62), (17.78, 7.62))),
}
# Proportions (the data sheets don't dimension the inside): the case is a cover WALL thick over a base plate as thick; the coil, core and contacts inside are one
# copper block filling FILL of the space inside the case, standing on its floor, so that the mass comes out near the data sheets' weights.
WALL = 0.5
FILL = 0.27

if kind not in RELAYS:
    raise ValueError(f"no relay {kind!r}: {', '.join(RELAYS)}")
length, width, height, pin_length, pin_x, pin_y, from_end, from_side, pins = RELAYS[kind]
# Pin 1's place in the case: the PCB layouts' bracketed distances from pin 1 to the case's end and side (the far end takes what's left
# of the average case size).
x0 = -from_end
y0 = -from_side

model = Model()
# The case: a cover, open underneath, over a base plate WALL thick that closes it.
model.box("case", length, width, height, at=(x0 + length / 2, y0 + width / 2, height / 2), op="new", body="case_body", name="Cover")
inner = (length - 2 * WALL, width - 2 * WALL, height - 2 * WALL)
model.box("inside", inner[0], inner[1], height - WALL, at=(x0 + length / 2, y0 + width / 2, (height - WALL) / 2), op="cut", body="case_body",
          name="Inside")
model.box("base", inner[0], inner[1], WALL, at=(x0 + length / 2, y0 + width / 2, WALL / 2), op="new", body="base_body", name="Base")
scale = FILL ** (1 / 3)
core = (inner[0] * scale, inner[1] * scale, inner[2] * scale)
model.box("coil", core[0], core[1], core[2], at=(x0 + length / 2, y0 + width / 2, WALL + core[2] / 2), op="new", body="coil_body",
          name="Coil and contacts")
pin_bodies = []
for i, (x, y) in enumerate(pins):
    model.box(f"pin_{i + 1}", pin_x, pin_y, pin_length, at=(x, y, -pin_length / 2), op="new", body=f"pin_{i + 1}_body", name=f"Pin {i + 1}")
    pin_bodies.append(f"pin_{i + 1}_body")
# Materials, for looks and a rough mass (the data sheets name none): a black plastic case (pa6), the inside copper, tin-plated pins.
model.material("pa6", bodies=["case_body", "base_body"], color="#1d1e20")
model.material("copper", bodies=["coil_body"], color="#b87333")
model.material("copper", bodies=pin_bodies, color="#c9cbc8")
result = model.result()

pypart.toml 49 lines · TOML

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name = "steve/pcb-relay"

version = "1.0.0"

runtime = "steve"

license = "MIT"

summary = "Through-hole PCB relays from Omron's data sheets: G2RL-2 power relay, G5V-1 and G5V-2 signal relays, G6A and G6AK signal relays."

description = """Through-hole PCB relay: a closed case on the board with its pins at the maker's PCB layout. Omron G2RL-2 (DPDT power relay, 28.8 x 12.5 x 15.5), G5V-1 (SPDT, 12.3 x 7.3 x 9.9), G5V-2 (DPDT, 20.3 x 9.9 x 11.4), G6A (DPDT, 20 x 9.9 x 8.2) and G6AK (DPDT, double-winding latching, ten pins). Case sizes, pins and holes from Omron's data sheets. See the README."""

tags = ["relay", "pcb-relay", "signal-relay", "power-relay", "through-hole", "omron", "electronics"]

[parameters.kind]

type = "choice"

default = "G6A"

choices = ["G2RL-2", "G5V-1", "G5V-2", "G6A", "G6AK"]

label = "Relay type"

[[presets]]

id = "G2RL-2"

title = "Omron G2RL-2, DPDT power relay"

params = { kind = "G2RL-2" }

aliases = ["Omron G2RL-2", "G2RL-2"]

standard = "Omron"

[[presets]]

id = "G5V-1"

title = "Omron G5V-1, SPDT signal relay"

params = { kind = "G5V-1" }

aliases = ["Omron G5V-1", "G5V-1"]

standard = "Omron"

[[presets]]

id = "G5V-2"

title = "Omron G5V-2, DPDT signal relay"

params = { kind = "G5V-2" }

aliases = ["Omron G5V-2", "G5V-2"]

standard = "Omron"

[[presets]]

id = "G6A"

title = "Omron G6A, DPDT signal relay"

params = { kind = "G6A" }

aliases = ["Omron G6A", "G6A-274P"]

standard = "Omron"

[[presets]]

id = "G6AK"

title = "Omron G6AK, DPDT signal relay, double-winding latching"

params = { kind = "G6AK" }

aliases = ["Omron G6AK", "G6AK-274P"]

standard = "Omron"

name = "steve/pcb-relay"
version = "1.0.0"
runtime = "steve"
license = "MIT"
summary = "Through-hole PCB relays from Omron's data sheets: G2RL-2 power relay, G5V-1 and G5V-2 signal relays, G6A and G6AK signal relays."
description = """Through-hole PCB relay: a closed case on the board with its pins at the maker's PCB layout. Omron G2RL-2 (DPDT power relay, 28.8 x 12.5 x 15.5), G5V-1 (SPDT, 12.3 x 7.3 x 9.9), G5V-2 (DPDT, 20.3 x 9.9 x 11.4), G6A (DPDT, 20 x 9.9 x 8.2) and G6AK (DPDT, double-winding latching, ten pins). Case sizes, pins and holes from Omron's data sheets. See the README."""
tags = ["relay", "pcb-relay", "signal-relay", "power-relay", "through-hole", "omron", "electronics"]

[parameters.kind]
type = "choice"
default = "G6A"
choices = ["G2RL-2", "G5V-1", "G5V-2", "G6A", "G6AK"]
label = "Relay type"

[[presets]]
id = "G2RL-2"
title = "Omron G2RL-2, DPDT power relay"
params = { kind = "G2RL-2" }
aliases = ["Omron G2RL-2", "G2RL-2"]
standard = "Omron"

[[presets]]
id = "G5V-1"
title = "Omron G5V-1, SPDT signal relay"
params = { kind = "G5V-1" }
aliases = ["Omron G5V-1", "G5V-1"]
standard = "Omron"

[[presets]]
id = "G5V-2"
title = "Omron G5V-2, DPDT signal relay"
params = { kind = "G5V-2" }
aliases = ["Omron G5V-2", "G5V-2"]
standard = "Omron"

[[presets]]
id = "G6A"
title = "Omron G6A, DPDT signal relay"
params = { kind = "G6A" }
aliases = ["Omron G6A", "G6A-274P"]
standard = "Omron"

[[presets]]
id = "G6AK"
title = "Omron G6AK, DPDT signal relay, double-winding latching"
params = { kind = "G6AK" }
aliases = ["Omron G6AK", "G6AK-274P"]
standard = "Omron"

README.md 44 lines · Markdown

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PCB relay, through-hole

A through-hole PCB relay: a closed case standing on the board with its pins at the maker's PCB layout. Pin 1 is at the origin. The pins are placed as the maker's bottom-view PCB layout draws them, seen from above (the layout turned over about its horizontal axis). The layout's rows run along +X, and its next row is towards +Y. The pins go down through the board.

Type	Contacts	Case (average)	Pins below the board	Pin section	PCB layout: columns from pin 1	Rows apart	Pin 1 from the case end, side	Weight (sheet)
G2RL-2	DPDT, power	28.8 x 12.5 x 15.5	3.5	0.5 x 0.8	0, 15, 20, 25	7.5	2.3, 2.5	approx. 12 g
G5V-1	SPDT, signal	12.3 x 7.3 x 9.9	3.5	0.5 x 0.3	0, 2.54, 10.16	5.08	1.07, 1.11	approx. 2 g
G5V-2	DPDT, signal	20.3 x 9.9 x 11.4	3.5	0.5 x 0.3	0, 7.62, 12.7, 17.78	7.62	1.3, 1.2	approx. 5 g
G6A	DPDT, signal	20 x 9.9 x 8.2	3.16	0.6 x 0.3	0, 7.62, 12.7, 17.78	7.62	1.2, 1.2	approx. 3.5 g
G6AK	DPDT, signal, double-winding latching	20 x 9.9 x 8.2	3.16	0.6 x 0.3	0, 2.54, 7.62, 12.7, 17.78	7.62	1.2, 1.2	approx. 3.5 g

The case sizes are the data sheets' average values (their maximums are 0.2 to 0.3 larger). The distances from pin 1 to the case are the PCB layouts' bracketed reference values, and the case's far end takes what's left of its average size.

Source

Omron data sheets, from Omron's own site (omronfs.omron.com/en_US/ecb/products/pdf/):

PCB Power Relay G2RL, Cat. No. J117-E1-17 (en-g2rl.pdf): weight approx. 12 g (Ratings, page 2); Dimensions, page 6, G2RL-2(-HA, -PW1), G2RL-24, G2RL-2-ASI: 29 max. (28.8) x 12.7 max. (12.5) x 15.7 max. (15.5), terminals 3.5 long, 0.5 and 0.8; PCB mounting holes: eight, 20 from pin 1 to the third column, the columns 5 apart, the rows 7.5 apart, (2.3) and (2.5) to the case.
Low Signal Relay G5V-1, Cat. No. K048-E1-07 (en-g5v_1.pdf): weight approx. 2 g; Dimensions, page 4: 12.5 max. (12.3) x 7.5 max. (7.3) x 10 max. (9.9), terminals 3.5, 0.5 and 0.3; six holes at 2.54, 7.62 (10.16 in all) and 5.08, (1.07) and (1.11) to the case.
Low Signal Relay G5V-2, Cat. No. K046-E1-06 (en-g5v_2.pdf): weight approx. 5 g; Dimensions, page 4: 20.5 max. (20.3) x 10.1 max. (9.9) x 11.5 max. (11.4), terminals 3.5, 0.5 and 0.3; eight holes at 7.62, 5.08, 5.08 and 7.62 apart, (1.3) and (1.2) to the case.
Low Signal Relay G6A, Cat. No. K020-E1-15 (en-g6a.pdf): weight approx. 3.5 g; Dimensions, page 8: G6A-274P and G6AU-274P, 20.2 max. (20) x 10.1 max. (9.9) x 8.4 max. (8.2), terminals 3.16 long, 0.6 and 0.3; eight holes at 7.62, 5.08, 5.08 and 7.62 apart, (1.2) to the case; G6AK-274P, ten holes, with a column 2.54 from pin 1.

The data sheets name no materials.

Proportions, for looks and mass. The data sheets don't dimension the inside. The case is a cover 0.5 thick over a base plate 0.5 thick. The coil, core and contacts inside are one copper block filling 0.27 of the space inside the case and standing on the base. That share is the same for every type.

Mass, with pa6 at 1.15 and copper at 8.96 g/cm³:

Type	Model	Data sheet
G2RL-2	12.4 g	approx. 12 g
G5V-1	1.85 g	approx. 2 g
G5V-2	4.94 g	approx. 5 g
G6A, G6AK	3.45 g	approx. 3.5 g

The case is black (pa6), and the pins are tin-plated copper.

The old catalogue's models

Relay_DPDT_Omron_G6A and G6AK were measured (2026-11-06): a case 20 x 9.9 x 8.2 with pins 3.16 below, pin 1 1.14 from the case's end and 1.21 from its side, against the sheet's (1.2) and (1.2). That's within 0.07, and the pins are at the same places. The catalogue's G2RL, G5V-1 and G5V-2 entries have no model. They name the part, and the sheets above give it.

The family's other relays (Finder, Schrack, Panasonic, Fujitsu, Hongfa, Kemet, COTO, Standex-Meder, SANYOU, HJR, and Omron G6H, G6K, G6S, G6E, G5LE and G5NB) aren't here yet; see COVERAGE.md.

# PCB relay, through-hole

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

| G2RL-2 | DPDT, power | 28.8 x 12.5 x 15.5 | 3.5 | 0.5 x 0.8 | 0, 15, 20, 25 | 7.5 | 2.3, 2.5 | approx. 12 g |

| G5V-1 | SPDT, signal | 12.3 x 7.3 x 9.9 | 3.5 | 0.5 x 0.3 | 0, 2.54, 10.16 | 5.08 | 1.07, 1.11 | approx. 2 g |

| G5V-2 | DPDT, signal | 20.3 x 9.9 x 11.4 | 3.5 | 0.5 x 0.3 | 0, 7.62, 12.7, 17.78 | 7.62 | 1.3, 1.2 | approx. 5 g |

| G6A | DPDT, signal | 20 x 9.9 x 8.2 | 3.16 | 0.6 x 0.3 | 0, 7.62, 12.7, 17.78 | 7.62 | 1.2, 1.2 | approx. 3.5 g |

| G6AK | DPDT, signal, double-winding latching | 20 x 9.9 x 8.2 | 3.16 | 0.6 x 0.3 | 0, 2.54, 7.62, 12.7, 17.78 | 7.62 | 1.2, 1.2 | approx. 3.5 g |

## Source

Omron data sheets, from Omron's own site (omronfs.omron.com/en_US/ecb/products/pdf/):

- *PCB Power Relay G2RL*, Cat. No. J117-E1-17 (`en-g2rl.pdf`): weight approx. 12 g (Ratings, page 2); Dimensions, page 6, G2RL-2(-HA, -PW1), G2RL-24, G2RL-2-ASI: 29 max. (28.8) x 12.7 max. (12.5) x 15.7 max. (15.5), terminals 3.5 long, 0.5 and 0.8; PCB mounting holes: eight, 20 from pin 1 to the third column, the columns 5 apart, the rows 7.5 apart, (2.3) and (2.5) to the case.

- *Low Signal Relay G5V-1*, Cat. No. K048-E1-07 (`en-g5v_1.pdf`): weight approx. 2 g; Dimensions, page 4: 12.5 max. (12.3) x 7.5 max. (7.3) x 10 max. (9.9), terminals 3.5, 0.5 and 0.3; six holes at 2.54, 7.62 (10.16 in all) and 5.08, (1.07) and (1.11) to the case.

- *Low Signal Relay G5V-2*, Cat. No. K046-E1-06 (`en-g5v_2.pdf`): weight approx. 5 g; Dimensions, page 4: 20.5 max. (20.3) x 10.1 max. (9.9) x 11.5 max. (11.4), terminals 3.5, 0.5 and 0.3; eight holes at 7.62, 5.08, 5.08 and 7.62 apart, (1.3) and (1.2) to the case.

- *Low Signal Relay G6A*, Cat. No. K020-E1-15 (`en-g6a.pdf`): weight approx. 3.5 g; Dimensions, page 8: G6A-274P and G6AU-274P, 20.2 max. (20) x 10.1 max. (9.9) x 8.4 max. (8.2), terminals 3.16 long, 0.6 and 0.3; eight holes at 7.62, 5.08, 5.08 and 7.62 apart, (1.2) to the case; G6AK-274P, ten holes, with a column 2.54 from pin 1.

The data sheets name no materials.

**Proportions, for looks and mass.** The data sheets don't dimension the inside. The case is a cover 0.5 thick over a base plate 0.5 thick. The coil, core and contacts inside are one copper block filling 0.27 of the space inside the case and standing on the base. That share is the same for every type.

Mass, with `pa6` at 1.15 and `copper` at 8.96 g/cm³:

| Type | Model | Data sheet |

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

| G2RL-2 | 12.4 g | approx. 12 g |

| G5V-1 | 1.85 g | approx. 2 g |

| G5V-2 | 4.94 g | approx. 5 g |

| G6A, G6AK | 3.45 g | approx. 3.5 g |

The case is black (`pa6`), and the pins are tin-plated copper.

## The old catalogue's models

`Relay_DPDT_Omron_G6A` and `G6AK` were measured (2026-11-06): a case 20 x 9.9 x 8.2 with pins 3.16 below, pin 1 1.14 from the case's end and 1.21 from its side, against the sheet's (1.2) and (1.2). That's within 0.07, and the pins are at the same places. The catalogue's G2RL, G5V-1 and G5V-2 entries have no model. They name the part, and the sheets above give it.

The family's other relays (Finder, Schrack, Panasonic, Fujitsu, Hongfa, Kemet, COTO, Standex-Meder, SANYOU, HJR, and Omron G6H, G6K, G6S, G6E, G5LE and G5NB) aren't here yet; see `COVERAGE.md`.

# PCB relay, through-hole

A through-hole PCB relay: a closed case standing on the board with its pins at the maker's PCB layout. Pin 1 is at the origin. The pins are placed as the maker's bottom-view PCB layout draws them, seen from above (the layout turned over about its horizontal axis). The layout's rows run along +X, and its next row is towards +Y. The pins go down through the board.

| Type | Contacts | Case (average) | Pins below the board | Pin section | PCB layout: columns from pin 1 | Rows apart | Pin 1 from the case end, side | Weight (sheet) |
|---|---|---|---|---|---|---|---|---|
| G2RL-2 | DPDT, power | 28.8 x 12.5 x 15.5 | 3.5 | 0.5 x 0.8 | 0, 15, 20, 25 | 7.5 | 2.3, 2.5 | approx. 12 g |
| G5V-1 | SPDT, signal | 12.3 x 7.3 x 9.9 | 3.5 | 0.5 x 0.3 | 0, 2.54, 10.16 | 5.08 | 1.07, 1.11 | approx. 2 g |
| G5V-2 | DPDT, signal | 20.3 x 9.9 x 11.4 | 3.5 | 0.5 x 0.3 | 0, 7.62, 12.7, 17.78 | 7.62 | 1.3, 1.2 | approx. 5 g |
| G6A | DPDT, signal | 20 x 9.9 x 8.2 | 3.16 | 0.6 x 0.3 | 0, 7.62, 12.7, 17.78 | 7.62 | 1.2, 1.2 | approx. 3.5 g |
| G6AK | DPDT, signal, double-winding latching | 20 x 9.9 x 8.2 | 3.16 | 0.6 x 0.3 | 0, 2.54, 7.62, 12.7, 17.78 | 7.62 | 1.2, 1.2 | approx. 3.5 g |

The case sizes are the data sheets' average values (their maximums are 0.2 to 0.3 larger). The distances from pin 1 to the case are the PCB layouts' bracketed reference values, and the case's far end takes what's left of its average size.

## Source

Omron data sheets, from Omron's own site (omronfs.omron.com/en_US/ecb/products/pdf/):

- *PCB Power Relay G2RL*, Cat. No. J117-E1-17 (`en-g2rl.pdf`): weight approx. 12 g (Ratings, page 2); Dimensions, page 6, G2RL-2(-HA, -PW1), G2RL-24, G2RL-2-ASI: 29 max. (28.8) x 12.7 max. (12.5) x 15.7 max. (15.5), terminals 3.5 long, 0.5 and 0.8; PCB mounting holes: eight, 20 from pin 1 to the third column, the columns 5 apart, the rows 7.5 apart, (2.3) and (2.5) to the case.
- *Low Signal Relay G5V-1*, Cat. No. K048-E1-07 (`en-g5v_1.pdf`): weight approx. 2 g; Dimensions, page 4: 12.5 max. (12.3) x 7.5 max. (7.3) x 10 max. (9.9), terminals 3.5, 0.5 and 0.3; six holes at 2.54, 7.62 (10.16 in all) and 5.08, (1.07) and (1.11) to the case.
- *Low Signal Relay G5V-2*, Cat. No. K046-E1-06 (`en-g5v_2.pdf`): weight approx. 5 g; Dimensions, page 4: 20.5 max. (20.3) x 10.1 max. (9.9) x 11.5 max. (11.4), terminals 3.5, 0.5 and 0.3; eight holes at 7.62, 5.08, 5.08 and 7.62 apart, (1.3) and (1.2) to the case.
- *Low Signal Relay G6A*, Cat. No. K020-E1-15 (`en-g6a.pdf`): weight approx. 3.5 g; Dimensions, page 8: G6A-274P and G6AU-274P, 20.2 max. (20) x 10.1 max. (9.9) x 8.4 max. (8.2), terminals 3.16 long, 0.6 and 0.3; eight holes at 7.62, 5.08, 5.08 and 7.62 apart, (1.2) to the case; G6AK-274P, ten holes, with a column 2.54 from pin 1.

The data sheets name no materials.

**Proportions, for looks and mass.** The data sheets don't dimension the inside. The case is a cover 0.5 thick over a base plate 0.5 thick. The coil, core and contacts inside are one copper block filling 0.27 of the space inside the case and standing on the base. That share is the same for every type.

Mass, with `pa6` at 1.15 and `copper` at 8.96 g/cm³:

| Type | Model | Data sheet |
|---|---|---|
| G2RL-2 | 12.4 g | approx. 12 g |
| G5V-1 | 1.85 g | approx. 2 g |
| G5V-2 | 4.94 g | approx. 5 g |
| G6A, G6AK | 3.45 g | approx. 3.5 g |

The case is black (`pa6`), and the pins are tin-plated copper.

## The old catalogue's models

`Relay_DPDT_Omron_G6A` and `G6AK` were measured (2026-11-06): a case 20 x 9.9 x 8.2 with pins 3.16 below, pin 1 1.14 from the case's end and 1.21 from its side, against the sheet's (1.2) and (1.2). That's within 0.07, and the pins are at the same places. The catalogue's G2RL, G5V-1 and G5V-2 entries have no model. They name the part, and the sheets above give it.

The family's other relays (Finder, Schrack, Panasonic, Fujitsu, Hongfa, Kemet, COTO, Standex-Meder, SANYOU, HJR, and Omron G6H, G6K, G6S, G6E, G5LE and G5NB) aren't here yet; see `COVERAGE.md`.

Use this part

STEVE

Open in STEVE

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Get the code

curl -o part.py "https://pythonparts.org/p/steve/pcb-relay/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/pcb-relay/1.0.0"

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

About this part

steve128 parts

Profile

Polyamide 6 (nylon 6)Plastics · Custom finish · 1.15 g/cm³
Copper (pure)Copper alloys · Custom finish · 8.96 g/cm³
Copper (pure)Copper alloys · Custom finish · 8.96 g/cm³

Mass: 3.45 g

At the parameters shown in the viewer, 11 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: cedb4216aa78…

#relay #pcb-relay #signal-relay #power-relay #through-hole #omron #electronics

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Through-hole PCB relay: a closed case on the board with its pins at the maker's PCB layout. Omron G2RL-2 (DPDT power relay, 28.8 x 12.5 x 15.5), G5V-1 (SPDT, 12.3 x 7.3 x 9.9), G5V-2 (DPDT, 20.3 x 9.9 x 11.4), G6A (DPDT, 20 x 9.9 x 8.2) and G6AK (DPDT, double-winding latching, ten pins). Case sizes, pins and holes from Omron's data sheets. See the README.

PCB relay, through-hole

Type	Contacts	Case (average)	Pins below the board	Pin section	PCB layout: columns from pin 1	Rows apart	Pin 1 from the case end, side	Weight (sheet)
G2RL-2	DPDT, power	28.8 x 12.5 x 15.5	3.5	0.5 x 0.8	0, 15, 20, 25	7.5	2.3, 2.5	approx. 12 g
G5V-1	SPDT, signal	12.3 x 7.3 x 9.9	3.5	0.5 x 0.3	0, 2.54, 10.16	5.08	1.07, 1.11	approx. 2 g
G5V-2	DPDT, signal	20.3 x 9.9 x 11.4	3.5	0.5 x 0.3	0, 7.62, 12.7, 17.78	7.62	1.3, 1.2	approx. 5 g
G6A	DPDT, signal	20 x 9.9 x 8.2	3.16	0.6 x 0.3	0, 7.62, 12.7, 17.78	7.62	1.2, 1.2	approx. 3.5 g
G6AK	DPDT, signal, double-winding latching	20 x 9.9 x 8.2	3.16	0.6 x 0.3	0, 2.54, 7.62, 12.7, 17.78	7.62	1.2, 1.2	approx. 3.5 g

Source

Omron data sheets, from Omron's own site (omronfs.omron.com/en_US/ecb/products/pdf/):

PCB Power Relay G2RL, Cat. No. J117-E1-17 (en-g2rl.pdf): weight approx. 12 g (Ratings, page 2); Dimensions, page 6, G2RL-2(-HA, -PW1), G2RL-24, G2RL-2-ASI: 29 max. (28.8) x 12.7 max. (12.5) x 15.7 max. (15.5), terminals 3.5 long, 0.5 and 0.8; PCB mounting holes: eight, 20 from pin 1 to the third column, the columns 5 apart, the rows 7.5 apart, (2.3) and (2.5) to the case.
Low Signal Relay G5V-1, Cat. No. K048-E1-07 (en-g5v_1.pdf): weight approx. 2 g; Dimensions, page 4: 12.5 max. (12.3) x 7.5 max. (7.3) x 10 max. (9.9), terminals 3.5, 0.5 and 0.3; six holes at 2.54, 7.62 (10.16 in all) and 5.08, (1.07) and (1.11) to the case.
Low Signal Relay G5V-2, Cat. No. K046-E1-06 (en-g5v_2.pdf): weight approx. 5 g; Dimensions, page 4: 20.5 max. (20.3) x 10.1 max. (9.9) x 11.5 max. (11.4), terminals 3.5, 0.5 and 0.3; eight holes at 7.62, 5.08, 5.08 and 7.62 apart, (1.3) and (1.2) to the case.
Low Signal Relay G6A, Cat. No. K020-E1-15 (en-g6a.pdf): weight approx. 3.5 g; Dimensions, page 8: G6A-274P and G6AU-274P, 20.2 max. (20) x 10.1 max. (9.9) x 8.4 max. (8.2), terminals 3.16 long, 0.6 and 0.3; eight holes at 7.62, 5.08, 5.08 and 7.62 apart, (1.2) to the case; G6AK-274P, ten holes, with a column 2.54 from pin 1.

The data sheets name no materials.

Mass, with pa6 at 1.15 and copper at 8.96 g/cm³:

Type	Model	Data sheet
G2RL-2	12.4 g	approx. 12 g
G5V-1	1.85 g	approx. 2 g
G5V-2	4.94 g	approx. 5 g
G6A, G6AK	3.45 g	approx. 3.5 g

The case is black (pa6), and the pins are tin-plated copper.

The old catalogue's models

The family's other relays (Finder, Schrack, Panasonic, Fujitsu, Hongfa, Kemet, COTO, Standex-Meder, SANYOU, HJR, and Omron G6H, G6K, G6S, G6E, G5LE and G5NB) aren't here yet; see COVERAGE.md.

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