steve/resistor-array

Thick film chip resistor arrays with convex terminals, Vishay CRA04S (0402), CRA06E/S (0603) and CRA12E/S (1206), 4 to 10 terminals.

v1.0.0 Latest STEVE MIT 0

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Isometric

Parameters

Preset8 sizes

Array8 options

Model and terminal count. CRA04S: 0402 elements. CRA06: 0603. CRA12: 1206. S: square corners. E: scalloped corners.

Defaults built

part.py 67 lines · Python · STEVE runtime · checked

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"""Thick film chip resistor array with convex terminals, Vishay CRA04S, CRA06E/S and CRA12E/S. Centred on the origin with the board on

the XY plane and the length along X: the ceramic body, the protective coating on top, and the terminals along both long sides, each its own

solid, wrapping over the side from the top to the bottom. Pin 1 is at the -X end of the -Y side. Dimensions from Vishay's data sheets; see

the README."""

from steve import Model

array = "CRA06S-8" # model and terminal count: CRA04S-4, CRA04S-8, CRA06S-4, CRA06S-8, CRA06E-8, CRA12E-8, CRA12E-10 or CRA12S-10

# array: (terminals, corners, L, A, A*, B, B*, P, T, W) in mm, the nominal values of the data sheets' DIMENSIONS tables. L length, W width,

# T height, P terminal pitch, A terminal width, A* corner terminal width (square corners, S version; None for the scalloped E version,

# whose end terminals are A wide on the pitch like the others), B terminal length on top, B* on the bottom.

# CRA04S: Vishay "CRA04S Thick Film Resistor Array", document number 31043, revision 13-Oct-08, page 249, DIMENSIONS (A* is A1; the

# 4-terminal part has no A, only corner terminals).

# CRA06E/S: Vishay Dale "CRA06E and S Thick Film, Resistor Array", document number 31002, revision 16-Aug-05, page 7, DIMENSIONS.

# CRA12E/S: Vishay "CRA12E, CRA12S Thick Film Resistor Array", document number 31003, revision 10-Dec-10, page 250, DIMENSIONS.

ARRAYS = {

"CRA04S-4": (4, "square", 1.0, None, 0.33, 0.15, 0.25, 0.65, 0.35, 1.0),

"CRA04S-8": (8, "square", 2.0, 0.30, 0.4, 0.15, 0.25, 0.50, 0.45, 1.0),

"CRA06S-4": (4, "square", 1.6, 0.38, 0.61, 0.3, 0.3, 0.8, 0.5, 1.5),

"CRA06S-8": (8, "square", 3.2, 0.38, 0.61, 0.3, 0.3, 0.8, 0.5, 1.5),

"CRA06E-8": (8, "scalloped", 3.2, 0.38, None, 0.3, 0.3, 0.8, 0.5, 1.5),

"CRA12E-8": (8, "scalloped", 5.08, 0.79, None, 0.51, 0.38, 1.27, 0.55, 3.05),

"CRA12E-10": (10, "scalloped", 6.40, 0.79, None, 0.51, 0.38, 1.27, 0.55, 3.05),

"CRA12S-10": (10, "square", 6.40, 0.79, 0.89, 0.51, 0.38, 1.27, 0.55, 3.05),

}

# Proportions, for looks (the drawings show these but don't dimension them): the terminals' metal is METAL thick, wrapped around a ceramic

# body METAL smaller on each side, top and bottom; the coating on top is METAL thick too and stops MARGIN x W short of the ends and of the

# terminals. So the terminals and the coating stand METAL proud of the ceramic.

METAL = 0.03

MARGIN = 0.05

n, corners, L, A, A_END, B, B_LOW, P, T, W = ARRAYS[array]

per_side = n // 2

model = Model()

model.box("body", L, W - 2 * METAL, T - 2 * METAL, at=(0, 0, T / 2), op="new", body="body_body", name="Body")

# Terminal positions along X: on the pitch, centred; with square corners the end terminals are A* wide and reach the body's ends.

spans = []

for i in range(per_side):

centre = (i - (per_side - 1) / 2) * P

if corners == "square" and i in (0, per_side - 1):

x0 = -L / 2 if i == 0 else L / 2 - A_END

spans.append((x0, A_END))

else:

spans.append((centre - A / 2, A))

terminals = []

for side_tag, side in (("a", -1), ("b", 1)):

# The terminal's section (y, z) on a YZ plane: along the top B in from the side, down the side, and B* in along the bottom.

edge = side * W / 2

inner_top, inner_low, wall = edge - side * B, edge - side * B_LOW, edge - side * METAL

section = [(inner_top, T), (edge, T), (edge, 0.0), (inner_low, 0.0), (inner_low, METAL), (wall, METAL), (wall, T - METAL),

(inner_top, T - METAL)]

for i, (x0, width) in enumerate(spans):

tag = f"t{side_tag}{i + 1}"

model.plane(f"{tag}_plane", on="YZ", offset=x0, name="Terminals")

with model.sketch(f"{tag}_sketch", on=f"{tag}_plane", name="Terminals") as sk:

sk.polyline(f"{tag}_section", section, closed=True)

model.extrude(tag, f"{tag}_sketch", distance=width, op="new", body=f"{tag}_body", name="Terminals")

terminals.append(f"{tag}_body")

model.box("coat", L - 2 * MARGIN * W, W - 2 * B - 2 * MARGIN * W, METAL, at=(0, 0, T - METAL / 2), op="new", body="coat_body", name="Coating")

# Materials, for looks and a rough mass (the sheets: a thick film on "a high grade ceramic" body or substrate, "covered by a protective

# coating", terminals of tin on a nickel barrier): the body alumina, the coating ptfe (an epoxy-like layer, nearest density in the list),

# the terminals tin.

model.material("alumina", bodies=["body_body"], color="#e9e7e1")

model.material("ptfe", bodies=["coat_body"], color="#1d1d1f")

model.material("tin", bodies=terminals, color="#c9ccd1")

result = model.result()

"""Thick film chip resistor array with convex terminals, Vishay CRA04S, CRA06E/S and CRA12E/S. Centred on the origin with the board on
the XY plane and the length along X: the ceramic body, the protective coating on top, and the terminals along both long sides, each its own
solid, wrapping over the side from the top to the bottom. Pin 1 is at the -X end of the -Y side. Dimensions from Vishay's data sheets; see
the README."""
from steve import Model

array = "CRA06S-8"  # model and terminal count: CRA04S-4, CRA04S-8, CRA06S-4, CRA06S-8, CRA06E-8, CRA12E-8, CRA12E-10 or CRA12S-10

# array: (terminals, corners, L, A, A*, B, B*, P, T, W) in mm, the nominal values of the data sheets' DIMENSIONS tables. L length, W width,
# T height, P terminal pitch, A terminal width, A* corner terminal width (square corners, S version; None for the scalloped E version,
# whose end terminals are A wide on the pitch like the others), B terminal length on top, B* on the bottom.
#   CRA04S: Vishay "CRA04S Thick Film Resistor Array", document number 31043, revision 13-Oct-08, page 249, DIMENSIONS (A* is A1; the
#     4-terminal part has no A, only corner terminals).
#   CRA06E/S: Vishay Dale "CRA06E and S Thick Film, Resistor Array", document number 31002, revision 16-Aug-05, page 7, DIMENSIONS.
#   CRA12E/S: Vishay "CRA12E, CRA12S Thick Film Resistor Array", document number 31003, revision 10-Dec-10, page 250, DIMENSIONS.
ARRAYS = {
    "CRA04S-4": (4, "square", 1.0, None, 0.33, 0.15, 0.25, 0.65, 0.35, 1.0),
    "CRA04S-8": (8, "square", 2.0, 0.30, 0.4, 0.15, 0.25, 0.50, 0.45, 1.0),
    "CRA06S-4": (4, "square", 1.6, 0.38, 0.61, 0.3, 0.3, 0.8, 0.5, 1.5),
    "CRA06S-8": (8, "square", 3.2, 0.38, 0.61, 0.3, 0.3, 0.8, 0.5, 1.5),
    "CRA06E-8": (8, "scalloped", 3.2, 0.38, None, 0.3, 0.3, 0.8, 0.5, 1.5),
    "CRA12E-8": (8, "scalloped", 5.08, 0.79, None, 0.51, 0.38, 1.27, 0.55, 3.05),
    "CRA12E-10": (10, "scalloped", 6.40, 0.79, None, 0.51, 0.38, 1.27, 0.55, 3.05),
    "CRA12S-10": (10, "square", 6.40, 0.79, 0.89, 0.51, 0.38, 1.27, 0.55, 3.05),
}
# Proportions, for looks (the drawings show these but don't dimension them): the terminals' metal is METAL thick, wrapped around a ceramic
# body METAL smaller on each side, top and bottom; the coating on top is METAL thick too and stops MARGIN x W short of the ends and of the
# terminals. So the terminals and the coating stand METAL proud of the ceramic.
METAL = 0.03
MARGIN = 0.05

n, corners, L, A, A_END, B, B_LOW, P, T, W = ARRAYS[array]
per_side = n // 2
model = Model()
model.box("body", L, W - 2 * METAL, T - 2 * METAL, at=(0, 0, T / 2), op="new", body="body_body", name="Body")
# Terminal positions along X: on the pitch, centred; with square corners the end terminals are A* wide and reach the body's ends.
spans = []
for i in range(per_side):
    centre = (i - (per_side - 1) / 2) * P
    if corners == "square" and i in (0, per_side - 1):
        x0 = -L / 2 if i == 0 else L / 2 - A_END
        spans.append((x0, A_END))
    else:
        spans.append((centre - A / 2, A))
terminals = []
for side_tag, side in (("a", -1), ("b", 1)):
    # The terminal's section (y, z) on a YZ plane: along the top B in from the side, down the side, and B* in along the bottom.
    edge = side * W / 2
    inner_top, inner_low, wall = edge - side * B, edge - side * B_LOW, edge - side * METAL
    section = [(inner_top, T), (edge, T), (edge, 0.0), (inner_low, 0.0), (inner_low, METAL), (wall, METAL), (wall, T - METAL),
               (inner_top, T - METAL)]
    for i, (x0, width) in enumerate(spans):
        tag = f"t{side_tag}{i + 1}"
        model.plane(f"{tag}_plane", on="YZ", offset=x0, name="Terminals")
        with model.sketch(f"{tag}_sketch", on=f"{tag}_plane", name="Terminals") as sk:
            sk.polyline(f"{tag}_section", section, closed=True)
        model.extrude(tag, f"{tag}_sketch", distance=width, op="new", body=f"{tag}_body", name="Terminals")
        terminals.append(f"{tag}_body")
model.box("coat", L - 2 * MARGIN * W, W - 2 * B - 2 * MARGIN * W, METAL, at=(0, 0, T - METAL / 2), op="new", body="coat_body", name="Coating")
# Materials, for looks and a rough mass (the sheets: a thick film on "a high grade ceramic" body or substrate, "covered by a protective
# coating", terminals of tin on a nickel barrier): the body alumina, the coating ptfe (an epoxy-like layer, nearest density in the list),
# the terminals tin.
model.material("alumina", bodies=["body_body"], color="#e9e7e1")
model.material("ptfe", bodies=["coat_body"], color="#1d1d1f")
model.material("tin", bodies=terminals, color="#c9ccd1")
result = model.result()

pypart.toml 71 lines · TOML

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name = "steve/resistor-array"

version = "1.0.0"

runtime = "steve"

license = "MIT"

summary = "Thick film chip resistor arrays with convex terminals, Vishay CRA04S (0402), CRA06E/S (0603) and CRA12E/S (1206), 4 to 10 terminals."

description = """Surface-mount chip resistor arrays for board layouts and enclosures: the ceramic body, the coating on top and the wrap-around terminals along both long sides, each terminal its own solid. Vishay's convex-terminal arrays CRA04S, CRA06E/S and CRA12E/S, with square (S) or scalloped (E) corners. Dimensions from Vishay's data sheets. See the README."""

tags = ["resistor", "resistor-array", "smd", "chip", "thick-film", "vishay", "electronics"]

[parameters.array]

type = "choice"

default = "CRA06S-8"

choices = ["CRA04S-4", "CRA04S-8", "CRA06S-4", "CRA06S-8", "CRA06E-8", "CRA12E-8", "CRA12E-10", "CRA12S-10"]

label = "Array"

description = "Model and terminal count. CRA04S: 0402 elements. CRA06: 0603. CRA12: 1206. S: square corners. E: scalloped corners."

[[presets]]

id = "CRA04S-4"

title = "Chip resistor array 2 x 0402, convex terminals, square corners, Vishay CRA04S (4 terminals)"

params = { array = "CRA04S-4" }

aliases = ["Vishay CRA04S 4 terminals", "CRA04S04", "resistor array 2x0402 convex"]

standard = "Vishay CRA04S"

[[presets]]

id = "CRA04S-8"

title = "Chip resistor array 4 x 0402, convex terminals, square corners, Vishay CRA04S (8 terminals)"

params = { array = "CRA04S-8" }

aliases = ["Vishay CRA04S 8 terminals", "CRA04S08", "resistor array 4x0402 convex"]

standard = "Vishay CRA04S"

[[presets]]

id = "CRA06S-4"

title = "Chip resistor array 2 x 0603, convex terminals, square corners, Vishay CRA06S (4 terminals)"

params = { array = "CRA06S-4" }

aliases = ["Vishay CRA06S 4 terminals", "CRA06S04", "resistor array 2x0603 convex"]

standard = "Vishay CRA06S"

[[presets]]

id = "CRA06S-8"

title = "Chip resistor array 4 x 0603, convex terminals, square corners, Vishay CRA06S (8 terminals)"

params = { array = "CRA06S-8" }

aliases = ["Vishay CRA06S 8 terminals", "CRA06S08", "resistor array 4x0603 convex"]

standard = "Vishay CRA06S"

[[presets]]

id = "CRA12E-8"

title = "Chip resistor array 4 x 1206, convex terminals, scalloped corners, Vishay CRA12E (8 terminals)"

params = { array = "CRA12E-8" }

aliases = ["Vishay CRA12E 8 terminals", "CRA12E08", "resistor array 4x1206 convex"]

standard = "Vishay CRA12E"

[[presets]]

id = "CRA12E-10"

title = "Chip resistor array 5 x 1206, convex terminals, scalloped corners, Vishay CRA12E (10 terminals)"

params = { array = "CRA12E-10" }

aliases = ["Vishay CRA12E 10 terminals", "CRA12E10", "resistor array 5x1206 convex"]

standard = "Vishay CRA12E"

[[presets]]

id = "CRA06E-8"

title = "Chip resistor array 4 x 0603, convex terminals, scalloped corners, Vishay CRA06E (8 terminals)"

params = { array = "CRA06E-8" }

aliases = ["Vishay CRA06E 8 terminals", "CRA06E08", "resistor array 4x0603 convex"]

standard = "Vishay CRA06E"

[[presets]]

id = "CRA12S-10"

title = "Chip resistor array 5 x 1206, convex terminals, square corners, Vishay CRA12S (10 terminals)"

params = { array = "CRA12S-10" }

aliases = ["Vishay CRA12S 10 terminals", "CRA12S10", "resistor array 5x1206 convex"]

standard = "Vishay CRA12S"

name = "steve/resistor-array"
version = "1.0.0"
runtime = "steve"
license = "MIT"
summary = "Thick film chip resistor arrays with convex terminals, Vishay CRA04S (0402), CRA06E/S (0603) and CRA12E/S (1206), 4 to 10 terminals."
description = """Surface-mount chip resistor arrays for board layouts and enclosures: the ceramic body, the coating on top and the wrap-around terminals along both long sides, each terminal its own solid. Vishay's convex-terminal arrays CRA04S, CRA06E/S and CRA12E/S, with square (S) or scalloped (E) corners. Dimensions from Vishay's data sheets. See the README."""
tags = ["resistor", "resistor-array", "smd", "chip", "thick-film", "vishay", "electronics"]

[parameters.array]
type = "choice"
default = "CRA06S-8"
choices = ["CRA04S-4", "CRA04S-8", "CRA06S-4", "CRA06S-8", "CRA06E-8", "CRA12E-8", "CRA12E-10", "CRA12S-10"]
label = "Array"
description = "Model and terminal count. CRA04S: 0402 elements. CRA06: 0603. CRA12: 1206. S: square corners. E: scalloped corners."

[[presets]]
id = "CRA04S-4"
title = "Chip resistor array 2 x 0402, convex terminals, square corners, Vishay CRA04S (4 terminals)"
params = { array = "CRA04S-4" }
aliases = ["Vishay CRA04S 4 terminals", "CRA04S04", "resistor array 2x0402 convex"]
standard = "Vishay CRA04S"

[[presets]]
id = "CRA04S-8"
title = "Chip resistor array 4 x 0402, convex terminals, square corners, Vishay CRA04S (8 terminals)"
params = { array = "CRA04S-8" }
aliases = ["Vishay CRA04S 8 terminals", "CRA04S08", "resistor array 4x0402 convex"]
standard = "Vishay CRA04S"

[[presets]]
id = "CRA06S-4"
title = "Chip resistor array 2 x 0603, convex terminals, square corners, Vishay CRA06S (4 terminals)"
params = { array = "CRA06S-4" }
aliases = ["Vishay CRA06S 4 terminals", "CRA06S04", "resistor array 2x0603 convex"]
standard = "Vishay CRA06S"

[[presets]]
id = "CRA06S-8"
title = "Chip resistor array 4 x 0603, convex terminals, square corners, Vishay CRA06S (8 terminals)"
params = { array = "CRA06S-8" }
aliases = ["Vishay CRA06S 8 terminals", "CRA06S08", "resistor array 4x0603 convex"]
standard = "Vishay CRA06S"

[[presets]]
id = "CRA12E-8"
title = "Chip resistor array 4 x 1206, convex terminals, scalloped corners, Vishay CRA12E (8 terminals)"
params = { array = "CRA12E-8" }
aliases = ["Vishay CRA12E 8 terminals", "CRA12E08", "resistor array 4x1206 convex"]
standard = "Vishay CRA12E"

[[presets]]
id = "CRA12E-10"
title = "Chip resistor array 5 x 1206, convex terminals, scalloped corners, Vishay CRA12E (10 terminals)"
params = { array = "CRA12E-10" }
aliases = ["Vishay CRA12E 10 terminals", "CRA12E10", "resistor array 5x1206 convex"]
standard = "Vishay CRA12E"

[[presets]]
id = "CRA06E-8"
title = "Chip resistor array 4 x 0603, convex terminals, scalloped corners, Vishay CRA06E (8 terminals)"
params = { array = "CRA06E-8" }
aliases = ["Vishay CRA06E 8 terminals", "CRA06E08", "resistor array 4x0603 convex"]
standard = "Vishay CRA06E"

[[presets]]
id = "CRA12S-10"
title = "Chip resistor array 5 x 1206, convex terminals, square corners, Vishay CRA12S (10 terminals)"
params = { array = "CRA12S-10" }
aliases = ["Vishay CRA12S 10 terminals", "CRA12S10", "resistor array 5x1206 convex"]
standard = "Vishay CRA12S"

README.md 51 lines · Markdown

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Chip resistor array

Vishay's thick film chip resistor arrays with convex terminals: CRA04S (0402 elements), CRA06E and CRA06S (0603) and CRA12E and CRA12S (1206), with 4 to 10 terminals. Each array holds terminals / 2 isolated resistors. The array is centred on the origin with the board on the XY plane and its length along X. It is the ceramic body, the protective coating on top, and the terminals along both long sides. Each terminal wraps over the side from the top to the bottom and is its own solid. Pin 1 is at the -X end of the -Y side.

S version: square corners. The end terminals are wider (A*) and reach the body's ends.
E version: scalloped corners. Every terminal is A wide on the pitch.

Source

Vishay data sheets, each table "DIMENSIONS [in millimeters]". These are nominal values; their tolerances follow the table.

CRA04S: "CRA04S Thick Film Resistor Array", document number 31043, revision 13-Oct-08, page 249. Copy hosted by Chipsmall, https://datasheet.chipsmall.com/CRA04S083100KFTD/520642.pdf. The sheet calls A* "A1".
CRA06E and CRA06S: "CRA06E and S Thick Film, Resistor Array", document number 31002, revision 16-Aug-05, page 7. Copy hosted by LCSC (szlcsc), https://atta.szlcsc.com/upload/public/pdf/source/231023/CRA06E.pdf-a86aca00f592b9e56030cf530f467695.pdf. The sheet calls A* "A1".
CRA12E and CRA12S: "CRA12E, CRA12S Thick Film Resistor Array", document number 31003, revision 10-Dec-10, page 250. Copy hosted by Chipsmall, https://datasheet.chipsmall.com/CRA12E083120RJTR/347494.pdf.

Array	Terminals	L	A	A*	B	B*	P	T	W
CRA04S	4	1.0	–	0.33	0.15	0.25	0.65	0.35	1.0
CRA04S	8	2.0	0.30	0.4	0.15	0.25	0.50	0.45	1.0
CRA06S	4	1.6	0.38	0.61	0.3	0.3	0.8	0.5	1.5
CRA06S	8	3.2	0.38	0.61	0.3	0.3	0.8	0.5	1.5
CRA06E	8	3.2	0.38	–	0.3	0.3	0.8	0.5	1.5
CRA12E	8	5.08	0.79	–	0.51	0.38	1.27	0.55	3.05
CRA12E	10	6.40	0.79	–	0.51	0.38	1.27	0.55	3.05
CRA12S	10	6.40	0.79	0.89	0.51	0.38	1.27	0.55	3.05

L is the length, W the width over the terminals, T the height, and P the terminal pitch. A is the terminal width, and A* the width of a square-cornered end terminal. B is the terminal's length on the top, and B* its length on the bottom. The terminals sit on the pitch, centred on the body. The 4-terminal CRA04S has only end terminals.

Proportions, stated plainly. The drawings show these but don't dimension them:

The terminals' metal is 0.03 thick. It wraps a ceramic body that is 0.03 smaller on each side, top and bottom, so the overall size is the sheet's L x W x T.
The black coating on top is 0.03 thick. It stops 0.05 W short of the ends and of the terminals' top pads.
The terminals' convex bulge and the E version's scalloped corners aren't modelled. The body's ends are square.

Materials. The sheets say "a high grade ceramic" body, "covered by a protective coating", with terminals of tin on a nickel barrier. The body is alumina, the coating ptfe (the nearest density in the list to an epoxy-like layer), and the terminals tin. The sheets give no weight.

Catalogue models

The old catalogue's R_Array_Convex_<n>x<size> entries have no models to measure. Each names a convex-terminal array of n resistors of an EIA size. Each maps to Vishay's convex array of that size and count:

Entry	Array
`R_Array_Convex_2x0402`	CRA04S, 4 terminals
`R_Array_Convex_4x0402`	CRA04S, 8 terminals
`R_Array_Convex_2x0603`	CRA06S, 4 terminals
`R_Array_Convex_4x0603`	CRA06S, 8 terminals
`R_Array_Convex_4x1206`	CRA12E, 8 terminals
`R_Array_Convex_5x1206`	CRA12E, 10 terminals

R_Array_Convex_2x1206 and R_Array_Convex_5x0603 aren't offered, because these sheets give no such count: CRA12 comes with 8 or 10 terminals, and CRA06 with 4 or 8. The concave arrays, R_Array_Convex_8x0602 and the other resistors in the family are read elsewhere or not yet; see COVERAGE.md.

# Chip resistor array

- **S version:** square corners. The end terminals are wider (A*) and reach the body's ends.

- **E version:** scalloped corners. Every terminal is A wide on the pitch.

## Source

Vishay data sheets, each table "DIMENSIONS [in millimeters]". These are nominal values; their tolerances follow the table.

- CRA04S: "CRA04S Thick Film Resistor Array", document number 31043, revision 13-Oct-08, page 249. Copy hosted by Chipsmall, <https://datasheet.chipsmall.com/CRA04S083100KFTD/520642.pdf>. The sheet calls A* "A1".

- CRA06E and CRA06S: "CRA06E and S Thick Film, Resistor Array", document number 31002, revision 16-Aug-05, page 7. Copy hosted by LCSC (szlcsc), <https://atta.szlcsc.com/upload/public/pdf/source/231023/CRA06E.pdf-a86aca00f592b9e56030cf530f467695.pdf>. The sheet calls A* "A1".

- CRA12E and CRA12S: "CRA12E, CRA12S Thick Film Resistor Array", document number 31003, revision 10-Dec-10, page 250. Copy hosted by Chipsmall, <https://datasheet.chipsmall.com/CRA12E083120RJTR/347494.pdf>.

| Array | Terminals | L | A | A* | B | B* | P | T | W |

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

| CRA04S | 4 | 1.0 | – | 0.33 | 0.15 | 0.25 | 0.65 | 0.35 | 1.0 |

| CRA04S | 8 | 2.0 | 0.30 | 0.4 | 0.15 | 0.25 | 0.50 | 0.45 | 1.0 |

| CRA06S | 4 | 1.6 | 0.38 | 0.61 | 0.3 | 0.3 | 0.8 | 0.5 | 1.5 |

| CRA06S | 8 | 3.2 | 0.38 | 0.61 | 0.3 | 0.3 | 0.8 | 0.5 | 1.5 |

| CRA06E | 8 | 3.2 | 0.38 | – | 0.3 | 0.3 | 0.8 | 0.5 | 1.5 |

| CRA12E | 8 | 5.08 | 0.79 | – | 0.51 | 0.38 | 1.27 | 0.55 | 3.05 |

| CRA12E | 10 | 6.40 | 0.79 | – | 0.51 | 0.38 | 1.27 | 0.55 | 3.05 |

| CRA12S | 10 | 6.40 | 0.79 | 0.89 | 0.51 | 0.38 | 1.27 | 0.55 | 3.05 |

**Proportions, stated plainly.** The drawings show these but don't dimension them:

- The terminals' metal is 0.03 thick. It wraps a ceramic body that is 0.03 smaller on each side, top and bottom, so the overall size is the sheet's L x W x T.

- The black coating on top is 0.03 thick. It stops 0.05 W short of the ends and of the terminals' top pads.

- The terminals' convex bulge and the E version's scalloped corners aren't modelled. The body's ends are square.

**Materials.** The sheets say "a high grade ceramic" body, "covered by a protective coating", with terminals of tin on a nickel barrier. The body is alumina, the coating ptfe (the nearest density in the list to an epoxy-like layer), and the terminals tin. The sheets give no weight.

## Catalogue models

The old catalogue's `R_Array_Convex_<n>x<size>` entries have no models to measure. Each names a convex-terminal array of n resistors of an EIA size. Each maps to Vishay's convex array of that size and count:

| Entry | Array |

|---|---|

| `R_Array_Convex_2x0402` | CRA04S, 4 terminals |

| `R_Array_Convex_4x0402` | CRA04S, 8 terminals |

| `R_Array_Convex_2x0603` | CRA06S, 4 terminals |

| `R_Array_Convex_4x0603` | CRA06S, 8 terminals |

| `R_Array_Convex_4x1206` | CRA12E, 8 terminals |

| `R_Array_Convex_5x1206` | CRA12E, 10 terminals |

`R_Array_Convex_2x1206` and `R_Array_Convex_5x0603` aren't offered, because these sheets give no such count: CRA12 comes with 8 or 10 terminals, and CRA06 with 4 or 8. The concave arrays, `R_Array_Convex_8x0602` and the other resistors in the family are read elsewhere or not yet; see `COVERAGE.md`.

# Chip resistor array

Vishay's thick film chip resistor arrays with convex terminals: CRA04S (0402 elements), CRA06E and CRA06S (0603) and CRA12E and CRA12S (1206), with 4 to 10 terminals. Each array holds terminals / 2 isolated resistors. The array is centred on the origin with the board on the XY plane and its length along X. It is the ceramic body, the protective coating on top, and the terminals along both long sides. Each terminal wraps over the side from the top to the bottom and is its own solid. Pin 1 is at the -X end of the -Y side.

- **S version:** square corners. The end terminals are wider (A*) and reach the body's ends.
- **E version:** scalloped corners. Every terminal is A wide on the pitch.

## Source

Vishay data sheets, each table "DIMENSIONS [in millimeters]". These are nominal values; their tolerances follow the table.

- CRA04S: "CRA04S Thick Film Resistor Array", document number 31043, revision 13-Oct-08, page 249. Copy hosted by Chipsmall, <https://datasheet.chipsmall.com/CRA04S083100KFTD/520642.pdf>. The sheet calls A* "A1".
- CRA06E and CRA06S: "CRA06E and S Thick Film, Resistor Array", document number 31002, revision 16-Aug-05, page 7. Copy hosted by LCSC (szlcsc), <https://atta.szlcsc.com/upload/public/pdf/source/231023/CRA06E.pdf-a86aca00f592b9e56030cf530f467695.pdf>. The sheet calls A* "A1".
- CRA12E and CRA12S: "CRA12E, CRA12S Thick Film Resistor Array", document number 31003, revision 10-Dec-10, page 250. Copy hosted by Chipsmall, <https://datasheet.chipsmall.com/CRA12E083120RJTR/347494.pdf>.

| Array | Terminals | L | A | A* | B | B* | P | T | W |
|---|---|---|---|---|---|---|---|---|---|
| CRA04S | 4 | 1.0 | – | 0.33 | 0.15 | 0.25 | 0.65 | 0.35 | 1.0 |
| CRA04S | 8 | 2.0 | 0.30 | 0.4 | 0.15 | 0.25 | 0.50 | 0.45 | 1.0 |
| CRA06S | 4 | 1.6 | 0.38 | 0.61 | 0.3 | 0.3 | 0.8 | 0.5 | 1.5 |
| CRA06S | 8 | 3.2 | 0.38 | 0.61 | 0.3 | 0.3 | 0.8 | 0.5 | 1.5 |
| CRA06E | 8 | 3.2 | 0.38 | – | 0.3 | 0.3 | 0.8 | 0.5 | 1.5 |
| CRA12E | 8 | 5.08 | 0.79 | – | 0.51 | 0.38 | 1.27 | 0.55 | 3.05 |
| CRA12E | 10 | 6.40 | 0.79 | – | 0.51 | 0.38 | 1.27 | 0.55 | 3.05 |
| CRA12S | 10 | 6.40 | 0.79 | 0.89 | 0.51 | 0.38 | 1.27 | 0.55 | 3.05 |

L is the length, W the width over the terminals, T the height, and P the terminal pitch. A is the terminal width, and A* the width of a square-cornered end terminal. B is the terminal's length on the top, and B* its length on the bottom. The terminals sit on the pitch, centred on the body. The 4-terminal CRA04S has only end terminals.

**Proportions, stated plainly.** The drawings show these but don't dimension them:

- The terminals' metal is 0.03 thick. It wraps a ceramic body that is 0.03 smaller on each side, top and bottom, so the overall size is the sheet's L x W x T.
- The black coating on top is 0.03 thick. It stops 0.05 W short of the ends and of the terminals' top pads.
- The terminals' convex bulge and the E version's scalloped corners aren't modelled. The body's ends are square.

**Materials.** The sheets say "a high grade ceramic" body, "covered by a protective coating", with terminals of tin on a nickel barrier. The body is alumina, the coating ptfe (the nearest density in the list to an epoxy-like layer), and the terminals tin. The sheets give no weight.

## Catalogue models

The old catalogue's `R_Array_Convex_<n>x<size>` entries have no models to measure. Each names a convex-terminal array of n resistors of an EIA size. Each maps to Vishay's convex array of that size and count:

| Entry | Array |
|---|---|
| `R_Array_Convex_2x0402` | CRA04S, 4 terminals |
| `R_Array_Convex_4x0402` | CRA04S, 8 terminals |
| `R_Array_Convex_2x0603` | CRA06S, 4 terminals |
| `R_Array_Convex_4x0603` | CRA06S, 8 terminals |
| `R_Array_Convex_4x1206` | CRA12E, 8 terminals |
| `R_Array_Convex_5x1206` | CRA12E, 10 terminals |

`R_Array_Convex_2x1206` and `R_Array_Convex_5x0603` aren't offered, because these sheets give no such count: CRA12 comes with 8 or 10 terminals, and CRA06 with 4 or 8. The concave arrays, `R_Array_Convex_8x0602` and the other resistors in the family are read elsewhere or not yet; see `COVERAGE.md`.

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curl -o part.py "https://pythonparts.org/p/steve/resistor-array/v/1.0.0/raw/part.py"

Raw files, bundle and API

part.py
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README.md
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curl "https://pythonparts.org/api/v1/parts/steve/resistor-array/1.0.0"

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

About this part

steve146 parts

Profile

Alumina (aluminum oxide)Ceramics · Custom finish · 4 g/cm³
TinOther metals · Custom finish · 7.28 g/cm³
PTFEPlastics · Custom finish · 2.07 g/cm³

Mass: 0.009 g

At the parameters shown in the viewer, 10 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: 0f42bb973ad1…

#resistor #resistor-array #smd #chip #thick-film #vishay #electronics

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Surface-mount chip resistor arrays for board layouts and enclosures: the ceramic body, the coating on top and the wrap-around terminals along both long sides, each terminal its own solid. Vishay's convex-terminal arrays CRA04S, CRA06E/S and CRA12E/S, with square (S) or scalloped (E) corners. Dimensions from Vishay's data sheets. See the README.

Chip resistor array

S version: square corners. The end terminals are wider (A*) and reach the body's ends.
E version: scalloped corners. Every terminal is A wide on the pitch.

Source

Vishay data sheets, each table "DIMENSIONS [in millimeters]". These are nominal values; their tolerances follow the table.

CRA04S: "CRA04S Thick Film Resistor Array", document number 31043, revision 13-Oct-08, page 249. Copy hosted by Chipsmall, https://datasheet.chipsmall.com/CRA04S083100KFTD/520642.pdf. The sheet calls A* "A1".
CRA06E and CRA06S: "CRA06E and S Thick Film, Resistor Array", document number 31002, revision 16-Aug-05, page 7. Copy hosted by LCSC (szlcsc), https://atta.szlcsc.com/upload/public/pdf/source/231023/CRA06E.pdf-a86aca00f592b9e56030cf530f467695.pdf. The sheet calls A* "A1".
CRA12E and CRA12S: "CRA12E, CRA12S Thick Film Resistor Array", document number 31003, revision 10-Dec-10, page 250. Copy hosted by Chipsmall, https://datasheet.chipsmall.com/CRA12E083120RJTR/347494.pdf.

Array	Terminals	L	A	A*	B	B*	P	T	W
CRA04S	4	1.0	–	0.33	0.15	0.25	0.65	0.35	1.0
CRA04S	8	2.0	0.30	0.4	0.15	0.25	0.50	0.45	1.0
CRA06S	4	1.6	0.38	0.61	0.3	0.3	0.8	0.5	1.5
CRA06S	8	3.2	0.38	0.61	0.3	0.3	0.8	0.5	1.5
CRA06E	8	3.2	0.38	–	0.3	0.3	0.8	0.5	1.5
CRA12E	8	5.08	0.79	–	0.51	0.38	1.27	0.55	3.05
CRA12E	10	6.40	0.79	–	0.51	0.38	1.27	0.55	3.05
CRA12S	10	6.40	0.79	0.89	0.51	0.38	1.27	0.55	3.05

Proportions, stated plainly. The drawings show these but don't dimension them:

The terminals' metal is 0.03 thick. It wraps a ceramic body that is 0.03 smaller on each side, top and bottom, so the overall size is the sheet's L x W x T.
The black coating on top is 0.03 thick. It stops 0.05 W short of the ends and of the terminals' top pads.
The terminals' convex bulge and the E version's scalloped corners aren't modelled. The body's ends are square.

Catalogue models

Entry	Array
`R_Array_Convex_2x0402`	CRA04S, 4 terminals
`R_Array_Convex_4x0402`	CRA04S, 8 terminals
`R_Array_Convex_2x0603`	CRA06S, 4 terminals
`R_Array_Convex_4x0603`	CRA06S, 8 terminals
`R_Array_Convex_4x1206`	CRA12E, 8 terminals
`R_Array_Convex_5x1206`	CRA12E, 10 terminals

1.0.0 Latest Nov 6, 2026 · 2 hours ago

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