steve/dip-package

Plastic dual-in-line package (PDIP), 300 mil rows: 14, 16, 18 and 20 pins.

v1.0.0 Latest STEVE MIT 0

Open in STEVE

Isometric

Parameters

Preset5 sizes

Pins

14161820

Detail

fullsimple

full: body, pin-1 notch and leads. simple: the body only.

Defaults built

part.py 45 lines · Python · STEVE runtime · checked

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"""Plastic dual-in-line package (PDIP), 300 mil rows, 14 to 20 pins. Pin 1 is at the origin, pins 1 to n/2 along +X, the other row at +Y by 7.62; the seating plane is the

XY plane, the body above it, the leads down through the board. Dimensions from TI's N package drawing in the README."""

from steve import Model

pins = 16 # Pins

detail = "full" # full: body, pin-1 notch and leads; simple: the body only

# TI Mechanical Data MPDI002A, N (R-PDIP-T**), January 1995, revised October 1995 (drawing 4040049/C 08/95), in inches (mm): pitch 0.100 (2.54); A (body length)

# 0.745 to 0.775 (18.92 to 19.69) for 14 and 16 pins, 0.850 to 0.920 (21.59 to 23.37) for 18, 0.940 to 0.975 (23.88 to 24.77) for 20; body width 0.240 to 0.260

# (6.10 to 6.60); rows 0.290 to 0.310 (7.37 to 7.87) outside the leads, on 0.300 (7.62) centres; seating plane to top 0.200 (5.08) max; seating plane to body

# 0.020 (0.51) min; leads below the seating plane 0.125 (3.18) min, 0.015 to 0.021 (0.38 to 0.53) wide, 0.010 (0.25) thick.

LENGTH = {14: (18.92, 19.69), 16: (18.92, 19.69), 18: (21.59, 23.37), 20: (23.88, 24.77)}

PITCH, ROWS, WIDTH, TOP, STANDOFF, TAIL, LEAD_W, LEAD_T = 2.54, 7.62, (6.10 + 6.60) / 2, 5.08, 0.51, 3.18, (0.38 + 0.53) / 2, 0.25

SHOULDER = 1.5 # the lead's wide shoulder above the seating plane and where it leaves the body are proportions, for looks

if pins not in LENGTH:

raise ValueError("This drawing covers 14, 16, 18 and 20 pins.")

per_row = pins // 2

length = sum(LENGTH[pins]) / 2

cx, cy = (per_row - 1) * PITCH / 2, ROWS / 2

model = Model()

model.plane("body_plane", on="XY", offset=STANDOFF, name="Body")

with model.sketch("body_sketch", on="body_plane", name="Body") as sk:

sk.rect("body_rect", (cx - length / 2, cy - WIDTH / 2), (cx + length / 2, cy + WIDTH / 2))

model.extrude("body", "body_sketch", distance=TOP - STANDOFF, name="Body")

if detail == "full":

model.plane("top_plane", on="XY", offset=TOP, name="Top")

with model.sketch("notch_sketch", on="top_plane", name="Pin-1 notch") as sk:

sk.circle("notch_circle", (cx - length / 2, cy), 0.75)

model.extrude("notch", "notch_sketch", distance=-0.5, op="cut", name="Pin-1 notch")

for row, y in ((0, 0.0), (1, ROWS)):

model.plane(f"tail_plane_{row}", on="XY", offset=-TAIL, name="Leads")

with model.sketch(f"tails_{row}", on=f"tail_plane_{row}", name="Leads") as sk:

for i in range(per_row):

sk.rect(f"tail_{row}_{i}", (i * PITCH - LEAD_W / 2, y - LEAD_T / 2), (i * PITCH + LEAD_W / 2, y + LEAD_T / 2))

model.extrude(f"tails_{row}_body", f"tails_{row}", distance=TAIL + SHOULDER + 0.5, name="Leads")

edge = cy - WIDTH / 2 if row == 0 else cy + WIDTH / 2

model.plane(f"arm_plane_{row}", on="XY", offset=SHOULDER, name="Leads")

with model.sketch(f"arms_{row}", on=f"arm_plane_{row}", name="Leads") as sk:

for i in range(per_row):

sk.rect(f"arm_{row}_{i}", (i * PITCH - SHOULDER / 2, min(y, edge) - LEAD_T / 2), (i * PITCH + SHOULDER / 2, max(y, edge) + LEAD_T / 2))

model.extrude(f"arms_{row}_body", f"arms_{row}", distance=0.5, name="Leads")

model.material("pla", color="#26282b")

result = model.result()

"""Plastic dual-in-line package (PDIP), 300 mil rows, 14 to 20 pins. Pin 1 is at the origin, pins 1 to n/2 along +X, the other row at +Y by 7.62; the seating plane is the
XY plane, the body above it, the leads down through the board. Dimensions from TI's N package drawing in the README."""
from steve import Model

pins = 16  # Pins
detail = "full"  # full: body, pin-1 notch and leads; simple: the body only

# TI Mechanical Data MPDI002A, N (R-PDIP-T**), January 1995, revised October 1995 (drawing 4040049/C 08/95), in inches (mm): pitch 0.100 (2.54); A (body length)
# 0.745 to 0.775 (18.92 to 19.69) for 14 and 16 pins, 0.850 to 0.920 (21.59 to 23.37) for 18, 0.940 to 0.975 (23.88 to 24.77) for 20; body width 0.240 to 0.260
# (6.10 to 6.60); rows 0.290 to 0.310 (7.37 to 7.87) outside the leads, on 0.300 (7.62) centres; seating plane to top 0.200 (5.08) max; seating plane to body
# 0.020 (0.51) min; leads below the seating plane 0.125 (3.18) min, 0.015 to 0.021 (0.38 to 0.53) wide, 0.010 (0.25) thick.
LENGTH = {14: (18.92, 19.69), 16: (18.92, 19.69), 18: (21.59, 23.37), 20: (23.88, 24.77)}
PITCH, ROWS, WIDTH, TOP, STANDOFF, TAIL, LEAD_W, LEAD_T = 2.54, 7.62, (6.10 + 6.60) / 2, 5.08, 0.51, 3.18, (0.38 + 0.53) / 2, 0.25
SHOULDER = 1.5   # the lead's wide shoulder above the seating plane and where it leaves the body are proportions, for looks
if pins not in LENGTH:
    raise ValueError("This drawing covers 14, 16, 18 and 20 pins.")

per_row = pins // 2
length = sum(LENGTH[pins]) / 2
cx, cy = (per_row - 1) * PITCH / 2, ROWS / 2
model = Model()
model.plane("body_plane", on="XY", offset=STANDOFF, name="Body")
with model.sketch("body_sketch", on="body_plane", name="Body") as sk:
    sk.rect("body_rect", (cx - length / 2, cy - WIDTH / 2), (cx + length / 2, cy + WIDTH / 2))
model.extrude("body", "body_sketch", distance=TOP - STANDOFF, name="Body")
if detail == "full":
    model.plane("top_plane", on="XY", offset=TOP, name="Top")
    with model.sketch("notch_sketch", on="top_plane", name="Pin-1 notch") as sk:
        sk.circle("notch_circle", (cx - length / 2, cy), 0.75)
    model.extrude("notch", "notch_sketch", distance=-0.5, op="cut", name="Pin-1 notch")
    for row, y in ((0, 0.0), (1, ROWS)):
        model.plane(f"tail_plane_{row}", on="XY", offset=-TAIL, name="Leads")
        with model.sketch(f"tails_{row}", on=f"tail_plane_{row}", name="Leads") as sk:
            for i in range(per_row):
                sk.rect(f"tail_{row}_{i}", (i * PITCH - LEAD_W / 2, y - LEAD_T / 2), (i * PITCH + LEAD_W / 2, y + LEAD_T / 2))
        model.extrude(f"tails_{row}_body", f"tails_{row}", distance=TAIL + SHOULDER + 0.5, name="Leads")
        edge = cy - WIDTH / 2 if row == 0 else cy + WIDTH / 2
        model.plane(f"arm_plane_{row}", on="XY", offset=SHOULDER, name="Leads")
        with model.sketch(f"arms_{row}", on=f"arm_plane_{row}", name="Leads") as sk:
            for i in range(per_row):
                sk.rect(f"arm_{row}_{i}", (i * PITCH - SHOULDER / 2, min(y, edge) - LEAD_T / 2), (i * PITCH + SHOULDER / 2, max(y, edge) + LEAD_T / 2))
        model.extrude(f"arms_{row}_body", f"arms_{row}", distance=0.5, name="Leads")
model.material("pla", color="#26282b")
result = model.result()

pypart.toml 56 lines · TOML

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name = "steve/dip-package"

version = "1.0.0"

runtime = "steve"

license = "MIT"

summary = "Plastic dual-in-line package (PDIP), 300 mil rows: 14, 16, 18 and 20 pins."

description = """A plastic DIP for board layouts: body, pin-1 notch and leads, from TI's N package drawing (within JEDEC MS-001). See the README."""

tags = ["ic-package", "dip", "pdip", "through-hole", "electronics"]

[parameters.pins]

type = "choice"

default = 16

choices = [14, 16, 18, 20]

label = "Pins"

[parameters.detail]

type = "choice"

default = "full"

choices = ["full", "simple"]

label = "Detail"

description = "full: body, pin-1 notch and leads. simple: the body only."

[[presets]]

id = "DIP-14"

title = "DIP-14 package, 300 mil (7.62 mm) rows"

params = { pins = 14 }

aliases = ["DIP-14_W7.62mm", "DIP14", "PDIP-14", "14 pin DIP", "DIP 14", "14-DIP", "DIP-14 package, 300 mil (7.62 mm) rows"]

standard = "TI N package"

[[presets]]

id = "DIP-16"

title = "DIP-16 package, 300 mil (7.62 mm) rows"

params = { pins = 16 }

aliases = ["DIP-16_W7.62mm", "DIP16", "PDIP-16", "16 pin DIP", "DIP 16", "16-DIP", "DIP-16 package, 300 mil (7.62 mm) rows"]

standard = "TI N package"

[[presets]]

id = "DIP-18"

title = "DIP-18 package, 300 mil (7.62 mm) rows"

params = { pins = 18 }

aliases = ["DIP-18_W7.62mm", "DIP18", "PDIP-18", "18 pin DIP", "DIP 18", "18-DIP", "DIP-18 package, 300 mil (7.62 mm) rows"]

standard = "TI N package"

[[presets]]

id = "DIP-20"

title = "DIP-20 package, 300 mil (7.62 mm) rows"

params = { pins = 20 }

aliases = ["DIP-20_W7.62mm", "DIP20", "PDIP-20", "20 pin DIP", "DIP 20", "20-DIP", "DIP-20 package, 300 mil (7.62 mm) rows"]

standard = "TI N package"

[[presets]]

id = "DIP-16-simple"

title = "DIP-16 package, simple"

params = { pins = 16, detail = "simple" }

aliases = ["DIP-16 simple"]

standard = "TI N package"

name = "steve/dip-package"
version = "1.0.0"
runtime = "steve"
license = "MIT"
summary = "Plastic dual-in-line package (PDIP), 300 mil rows: 14, 16, 18 and 20 pins."
description = """A plastic DIP for board layouts: body, pin-1 notch and leads, from TI's N package drawing (within JEDEC MS-001). See the README."""
tags = ["ic-package", "dip", "pdip", "through-hole", "electronics"]

[parameters.pins]
type = "choice"
default = 16
choices = [14, 16, 18, 20]
label = "Pins"

[parameters.detail]
type = "choice"
default = "full"
choices = ["full", "simple"]
label = "Detail"
description = "full: body, pin-1 notch and leads. simple: the body only."

[[presets]]
id = "DIP-14"
title = "DIP-14 package, 300 mil (7.62 mm) rows"
params = { pins = 14 }
aliases = ["DIP-14_W7.62mm", "DIP14", "PDIP-14", "14 pin DIP", "DIP 14", "14-DIP", "DIP-14 package, 300 mil (7.62 mm) rows"]
standard = "TI N package"

[[presets]]
id = "DIP-16"
title = "DIP-16 package, 300 mil (7.62 mm) rows"
params = { pins = 16 }
aliases = ["DIP-16_W7.62mm", "DIP16", "PDIP-16", "16 pin DIP", "DIP 16", "16-DIP", "DIP-16 package, 300 mil (7.62 mm) rows"]
standard = "TI N package"

[[presets]]
id = "DIP-18"
title = "DIP-18 package, 300 mil (7.62 mm) rows"
params = { pins = 18 }
aliases = ["DIP-18_W7.62mm", "DIP18", "PDIP-18", "18 pin DIP", "DIP 18", "18-DIP", "DIP-18 package, 300 mil (7.62 mm) rows"]
standard = "TI N package"

[[presets]]
id = "DIP-20"
title = "DIP-20 package, 300 mil (7.62 mm) rows"
params = { pins = 20 }
aliases = ["DIP-20_W7.62mm", "DIP20", "PDIP-20", "20 pin DIP", "DIP 20", "20-DIP", "DIP-20 package, 300 mil (7.62 mm) rows"]
standard = "TI N package"

[[presets]]
id = "DIP-16-simple"
title = "DIP-16 package, simple"
params = { pins = 16, detail = "simple" }
aliases = ["DIP-16 simple"]
standard = "TI N package"

README.md 26 lines · Markdown

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DIP package

A plastic dual-in-line package (PDIP) with 300 mil rows, 14 to 20 pins. Pin 1 is at the origin, pins 1 to n/2 run along +X, and the other row is at +Y by 7.62. The seating plane is the XY plane, with the body above it and the leads going down through the board.

Source

TI Mechanical Data MPDI002A, N (R-PDIP-T**) plastic dual-in-line package, January 1995, revised October 1995 (drawing 4040049/C 08/95). The drawing says the package falls within JEDEC MS-001, except that the 20-pin body is shorter. A copy is in a TI datasheet at https://mantech.co.za/datasheets/products/sn74ls03n_t.pdf, page 7.

	14 and 16 pins	18 pins	20 pins
Body length A	18.92 to 19.69	21.59 to 23.37	23.88 to 24.77

For every pin count:

pitch 2.54
body width 6.10 to 6.60
rows on 7.62 centres, 7.37 to 7.87 outside the leads
seating plane to top 5.08 max, and to the body 0.51 min
leads 3.18 min below the seating plane, 0.38 to 0.53 wide and 0.25 thick

The model uses the middle of each range. Height is the 5.08 max, so read it as an envelope.

Proportions, for looks only: the leads' wide shoulder, where they leave the body, and the pin-1 notch.

8-pin and 600 mil (24 to 40 pin) DIPs and the DIP sockets aren't here yet; see COVERAGE.md.

# DIP package

A plastic dual-in-line package (PDIP) with 300 mil rows, 14 to 20 pins. Pin 1 is at the origin, pins 1 to n/2 run along +X, and the other row is at +Y by 7.62. The seating plane is the XY plane, with the body above it and the leads going down through the board.

## Source

TI Mechanical Data MPDI002A, *N (R-PDIP-T\*\*) plastic dual-in-line package*, January 1995, revised October 1995 (drawing 4040049/C 08/95). The drawing says the package falls within JEDEC MS-001, except that the 20-pin body is shorter. A copy is in a TI datasheet at <https://mantech.co.za/datasheets/products/sn74ls03n_t.pdf>, page 7.

| | 14 and 16 pins | 18 pins | 20 pins |
|---|---|---|---|
| Body length A | 18.92 to 19.69 | 21.59 to 23.37 | 23.88 to 24.77 |

For every pin count:

- pitch 2.54
- body width 6.10 to 6.60
- rows on 7.62 centres, 7.37 to 7.87 outside the leads
- seating plane to top 5.08 max, and to the body 0.51 min
- leads 3.18 min below the seating plane, 0.38 to 0.53 wide and 0.25 thick

The model uses the middle of each range. Height is the 5.08 max, so read it as an envelope.

**Proportions, for looks only:** the leads' wide shoulder, where they leave the body, and the pin-1 notch.

8-pin and 600 mil (24 to 40 pin) DIPs and the DIP sockets aren't here yet; see `COVERAGE.md`.

Use this part

STEVE

Open in STEVE

Open it in STEVE The STEVE runtime runs in STEVE: open the part there, or download the code and bundle.

Get the code

curl -o part.py "https://pythonparts.org/p/steve/dip-package/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/dip-package/1.0.0"

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

About this part

steve105 parts

Profile

PLAPlastics · Custom finish · 1.24 g/cm³

Mass: 0.72 g

At the parameters shown in the viewer.

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 5, 2026
Downloads: 0
Builds: 0
Stars: 0
Bundle: 43fd51bd1b4b…

#ic-package #dip #pdip #through-hole #electronics

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A plastic DIP for board layouts: body, pin-1 notch and leads, from TI's N package drawing (within JEDEC MS-001). See the README.

DIP package

Source

	14 and 16 pins	18 pins	20 pins
Body length A	18.92 to 19.69	21.59 to 23.37	23.88 to 24.77

For every pin count:

pitch 2.54
body width 6.10 to 6.60
rows on 7.62 centres, 7.37 to 7.87 outside the leads
seating plane to top 5.08 max, and to the body 0.51 min
leads 3.18 min below the seating plane, 0.38 to 0.53 wide and 0.25 thick

The model uses the middle of each range. Height is the 5.08 max, so read it as an envelope.

Proportions, for looks only: the leads' wide shoulder, where they leave the body, and the pin-1 notch.

8-pin and 600 mil (24 to 40 pin) DIPs and the DIP sockets aren't here yet; see COVERAGE.md.

1.0.0 Latest Nov 5, 2026 · 2 hours ago

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