steve/molded-chip-inductor

Power molded chip inductors in the Würth WE-PMCI sizes, 1.6 x 0.8 mm to 3.2 x 2.5 mm, by the maker's datasheets.

v1.0.0 Latest STEVE MIT 0

Not affiliated with or endorsed by Würth.

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Isometric

Parameters

Preset7 sizes

WE-PMCI size (L W H, tenths of a mm)7 options

Defaults built

part.py 40 lines · Python · STEVE runtime · checked

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"""Power molded chip inductor, Würth WE-PMCI sizes. Centred on the origin, sitting on the XY plane, length along X with the two end terminals at the -X and

+X ends. Dimensions from the Würth datasheet for one order code of the size named by `size`; see the README."""

from steve import Model

size = "201610" # WE-PMCI size code: length, width, height in tenths of a mm

# size: (length, width, height, terminal length from each end), ranges (min, max), mm. Würth Elektronik WE-PMCI datasheets, page 1, Dimensions, one per

# size (order code, case, version and date): 160808 74479262147 0603 001.001 2017-03-09; 201210 74479275222 0805 001.001 2017-03-09; 201610 74479276124

# 0806 002.000 2017-09-29; 252010 74479287222 1008 002.000 2017-09-29; 252012 74479288222 1008 003.000 2017-09-29; 322510 74479298222 1210 002.000

# 2017-09-29; 322512 74479299147 1210 002.000 2017-09-29. The height is drawn as a maximum only, written (value, value) and used as drawn.

SIZES = {

"160808": ((1.4, 1.8), (0.6, 1.0), (0.8, 0.8), (0.1, 0.5)),

"201210": ((1.8, 2.2), (1.05, 1.45), (1.0, 1.0), (0.2, 0.8)),

"201610": ((1.8, 2.2), (1.4, 1.8), (1.0, 1.0), (0.2, 0.8)),

"252010": ((2.3, 2.7), (1.8, 2.2), (1.0, 1.0), (0.4, 0.8)),

"252012": ((2.3, 2.7), (1.8, 2.2), (1.2, 1.2), (0.4, 0.8)),

"322510": ((3.0, 3.4), (2.3, 2.7), (1.0, 1.0), (0.4, 0.8)),

"322512": ((3.0, 3.4), (2.3, 2.7), (1.2, 1.2), (0.4, 0.8)),

}

INSET = 0.03 # how far the molded body between the terminals sits inside them: a proportion, for looks

def mid(pair):

return (pair[0] + pair[1]) / 2

L, W, H, E = SIZES[size]

length, width, height, term = mid(L), mid(W), mid(H), mid(E)

model = Model()

with model.sketch("terms_sketch", on="XY", name="Terminals") as sk:

sk.rect("term_left", (-length / 2, -width / 2), (-length / 2 + term, width / 2))

sk.rect("term_right", (length / 2 - term, -width / 2), (length / 2, width / 2))

model.extrude("terms", "terms_sketch", distance=height, name="Terminals")

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

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

sk.rect("body_rect", (-length / 2 + term - 0.01, -width / 2 + INSET), (length / 2 - term + 0.01, width / 2 - INSET))

model.extrude("body", "body_sketch", distance=height - 2 * INSET, name="Body")

model.material("pla", color="#3a3c40")

result = model.result()

"""Power molded chip inductor, Würth WE-PMCI sizes. Centred on the origin, sitting on the XY plane, length along X with the two end terminals at the -X and
+X ends. Dimensions from the Würth datasheet for one order code of the size named by `size`; see the README."""
from steve import Model

size = "201610"  # WE-PMCI size code: length, width, height in tenths of a mm

# size: (length, width, height, terminal length from each end), ranges (min, max), mm. Würth Elektronik WE-PMCI datasheets, page 1, Dimensions, one per
# size (order code, case, version and date): 160808 74479262147 0603 001.001 2017-03-09; 201210 74479275222 0805 001.001 2017-03-09; 201610 74479276124
# 0806 002.000 2017-09-29; 252010 74479287222 1008 002.000 2017-09-29; 252012 74479288222 1008 003.000 2017-09-29; 322510 74479298222 1210 002.000
# 2017-09-29; 322512 74479299147 1210 002.000 2017-09-29. The height is drawn as a maximum only, written (value, value) and used as drawn.
SIZES = {
    "160808": ((1.4, 1.8), (0.6, 1.0), (0.8, 0.8), (0.1, 0.5)),
    "201210": ((1.8, 2.2), (1.05, 1.45), (1.0, 1.0), (0.2, 0.8)),
    "201610": ((1.8, 2.2), (1.4, 1.8), (1.0, 1.0), (0.2, 0.8)),
    "252010": ((2.3, 2.7), (1.8, 2.2), (1.0, 1.0), (0.4, 0.8)),
    "252012": ((2.3, 2.7), (1.8, 2.2), (1.2, 1.2), (0.4, 0.8)),
    "322510": ((3.0, 3.4), (2.3, 2.7), (1.0, 1.0), (0.4, 0.8)),
    "322512": ((3.0, 3.4), (2.3, 2.7), (1.2, 1.2), (0.4, 0.8)),
}
INSET = 0.03   # how far the molded body between the terminals sits inside them: a proportion, for looks


def mid(pair):
    return (pair[0] + pair[1]) / 2


L, W, H, E = SIZES[size]
length, width, height, term = mid(L), mid(W), mid(H), mid(E)
model = Model()
with model.sketch("terms_sketch", on="XY", name="Terminals") as sk:
    sk.rect("term_left", (-length / 2, -width / 2), (-length / 2 + term, width / 2))
    sk.rect("term_right", (length / 2 - term, -width / 2), (length / 2, width / 2))
model.extrude("terms", "terms_sketch", distance=height, name="Terminals")
model.plane("body_plane", on="XY", offset=INSET, name="Body")
with model.sketch("body_sketch", on="body_plane", name="Body") as sk:
    sk.rect("body_rect", (-length / 2 + term - 0.01, -width / 2 + INSET), (length / 2 - term + 0.01, width / 2 - INSET))
model.extrude("body", "body_sketch", distance=height - 2 * INSET, name="Body")
model.material("pla", color="#3a3c40")
result = model.result()

pypart.toml 56 lines · TOML

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name = "steve/molded-chip-inductor"

version = "1.0.0"

runtime = "steve"

license = "MIT"

summary = "Power molded chip inductors in the Würth WE-PMCI sizes, 1.6 x 0.8 mm to 3.2 x 2.5 mm, by the maker's datasheets."

description = """Power molded chip SMD inductors for board layouts: molded body and the two end terminals, sized from Würth Elektronik WE-PMCI datasheets. See the README."""

tags = ["inductor", "power-inductor", "chip-inductor", "molded", "smd", "electronics"]

[parameters.size]

type = "choice"

default = "201610"

choices = ["160808", "201210", "201610", "252010", "252012", "322510", "322512"]

label = "WE-PMCI size (L W H, tenths of a mm)"

[[presets]]

id = "PMCI-160808"

title = "WE-PMCI 160808 power molded chip inductor, 1.6 x 0.8 x 0.8 mm"

params = { size = "160808" }

aliases = ["WE-PMCI 160808", "PMCI-160808", "Wurth PMCI 160808"]

[[presets]]

id = "PMCI-201210"

title = "WE-PMCI 201210 power molded chip inductor, 2 x 1.25 x 1 mm"

params = { size = "201210" }

aliases = ["WE-PMCI 201210", "PMCI-201210", "Wurth PMCI 201210"]

[[presets]]

id = "PMCI-201610"

title = "WE-PMCI 201610 power molded chip inductor, 2 x 1.6 x 1 mm"

params = { size = "201610" }

aliases = ["WE-PMCI 201610", "PMCI-201610", "Wurth PMCI 201610"]

[[presets]]

id = "PMCI-252010"

title = "WE-PMCI 252010 power molded chip inductor, 2.5 x 2 x 1 mm"

params = { size = "252010" }

aliases = ["WE-PMCI 252010", "PMCI-252010", "Wurth PMCI 252010"]

[[presets]]

id = "PMCI-252012"

title = "WE-PMCI 252012 power molded chip inductor, 2.5 x 2 x 1.2 mm"

params = { size = "252012" }

aliases = ["WE-PMCI 252012", "PMCI-252012", "Wurth PMCI 252012"]

[[presets]]

id = "PMCI-322510"

title = "WE-PMCI 322510 power molded chip inductor, 3.2 x 2.5 x 1 mm"

params = { size = "322510" }

aliases = ["WE-PMCI 322510", "PMCI-322510", "Wurth PMCI 322510"]

[[presets]]

id = "PMCI-322512"

title = "WE-PMCI 322512 power molded chip inductor, 3.2 x 2.5 x 1.2 mm"

params = { size = "322512" }

aliases = ["WE-PMCI 322512", "PMCI-322512", "Wurth PMCI 322512"]

name = "steve/molded-chip-inductor"
version = "1.0.0"
runtime = "steve"
license = "MIT"
summary = "Power molded chip inductors in the Würth WE-PMCI sizes, 1.6 x 0.8 mm to 3.2 x 2.5 mm, by the maker's datasheets."
description = """Power molded chip SMD inductors for board layouts: molded body and the two end terminals, sized from Würth Elektronik WE-PMCI datasheets. See the README."""
tags = ["inductor", "power-inductor", "chip-inductor", "molded", "smd", "electronics"]

[parameters.size]
type = "choice"
default = "201610"
choices = ["160808", "201210", "201610", "252010", "252012", "322510", "322512"]
label = "WE-PMCI size (L W H, tenths of a mm)"

[[presets]]
id = "PMCI-160808"
title = "WE-PMCI 160808 power molded chip inductor, 1.6 x 0.8 x 0.8 mm"
params = { size = "160808" }
aliases = ["WE-PMCI 160808", "PMCI-160808", "Wurth PMCI 160808"]

[[presets]]
id = "PMCI-201210"
title = "WE-PMCI 201210 power molded chip inductor, 2 x 1.25 x 1 mm"
params = { size = "201210" }
aliases = ["WE-PMCI 201210", "PMCI-201210", "Wurth PMCI 201210"]

[[presets]]
id = "PMCI-201610"
title = "WE-PMCI 201610 power molded chip inductor, 2 x 1.6 x 1 mm"
params = { size = "201610" }
aliases = ["WE-PMCI 201610", "PMCI-201610", "Wurth PMCI 201610"]

[[presets]]
id = "PMCI-252010"
title = "WE-PMCI 252010 power molded chip inductor, 2.5 x 2 x 1 mm"
params = { size = "252010" }
aliases = ["WE-PMCI 252010", "PMCI-252010", "Wurth PMCI 252010"]

[[presets]]
id = "PMCI-252012"
title = "WE-PMCI 252012 power molded chip inductor, 2.5 x 2 x 1.2 mm"
params = { size = "252012" }
aliases = ["WE-PMCI 252012", "PMCI-252012", "Wurth PMCI 252012"]

[[presets]]
id = "PMCI-322510"
title = "WE-PMCI 322510 power molded chip inductor, 3.2 x 2.5 x 1 mm"
params = { size = "322510" }
aliases = ["WE-PMCI 322510", "PMCI-322510", "Wurth PMCI 322510"]

[[presets]]
id = "PMCI-322512"
title = "WE-PMCI 322512 power molded chip inductor, 3.2 x 2.5 x 1.2 mm"
params = { size = "322512" }
aliases = ["WE-PMCI 322512", "PMCI-322512", "Wurth PMCI 322512"]

README.md 24 lines · Markdown

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Molded chip inductor

Power molded chip SMD inductors in the Würth Elektronik WE-PMCI sizes: the molded body and the two end terminals, which cover each end and wrap onto the top, bottom and sides. The inductor is centred on the origin, sitting on the XY plane, with its length along X and the terminals at the -X and +X ends. Inductance doesn't change the outside of a size.

Source

Würth Elektronik WE-PMCI datasheets, page 1, Dimensions [mm]. One datasheet was read per size; the copies read are the ones hosted by oemstron at https://media.oemstron.com/oemstron/datasheetfiles/<order code>.pdf.

Size	Case	Order code read	Version, date	Length	Width	Height	Terminal length
160808	0603	74479262147	001.001, 2017-03-09	1.6 ± 0.2	0.8 ± 0.2	0.8 max	0.3 ± 0.2
201210	0805	74479275222	001.001, 2017-03-09	2.0 ± 0.2	1.25 ± 0.2	1.0 max	0.5 ± 0.3
201610	0806	74479276124	002.000, 2017-09-29	2.0 ± 0.2	1.6 ± 0.2	1.0 max	0.5 ± 0.3
252010	1008	74479287222	002.000, 2017-09-29	2.5 ± 0.2	2.0 ± 0.2	1.0 max	0.6 ± 0.2
252012	1008	74479288222	003.000, 2017-09-29	2.5 ± 0.2	2.0 ± 0.2	1.2 max	0.6 ± 0.2
322510	1210	74479298222	002.000, 2017-09-29	3.2 ± 0.2	2.5 ± 0.2	1.0 max	0.6 ± 0.2
322512	1210	74479299147	002.000, 2017-09-29	3.2 ± 0.2	2.5 ± 0.2	1.2 max	0.6 ± 0.2

The model uses the middle of each range; the height, drawn as a maximum only, is used as drawn.

Proportions, for looks only: the molded body between the terminals sits 0.03 mm inside them on the top, bottom and sides, so the terminals show.

Size 322515 isn't here yet: no hosted copy of its datasheet was found. The catalogue's WE-PMFI models on PMCI-compatible footprints are a different series and aren't mapped here. See COVERAGE.md.

# Molded chip inductor

Power molded chip SMD inductors in the Würth Elektronik WE-PMCI sizes: the molded body and the two end terminals, which cover each end and wrap onto the top, bottom and sides. The inductor is centred on the origin, sitting on the XY plane, with its length along X and the terminals at the -X and +X ends. Inductance doesn't change the outside of a size.

## Source

Würth Elektronik WE-PMCI datasheets, page 1, Dimensions [mm]. One datasheet was read per size; the copies read are the ones hosted by oemstron at `https://media.oemstron.com/oemstron/datasheetfiles/<order code>.pdf`.

| Size | Case | Order code read | Version, date | Length | Width | Height | Terminal length |
|---|---|---|---|---|---|---|---|
| 160808 | 0603 | 74479262147 | 001.001, 2017-03-09 | 1.6 ± 0.2 | 0.8 ± 0.2 | 0.8 max | 0.3 ± 0.2 |
| 201210 | 0805 | 74479275222 | 001.001, 2017-03-09 | 2.0 ± 0.2 | 1.25 ± 0.2 | 1.0 max | 0.5 ± 0.3 |
| 201610 | 0806 | 74479276124 | 002.000, 2017-09-29 | 2.0 ± 0.2 | 1.6 ± 0.2 | 1.0 max | 0.5 ± 0.3 |
| 252010 | 1008 | 74479287222 | 002.000, 2017-09-29 | 2.5 ± 0.2 | 2.0 ± 0.2 | 1.0 max | 0.6 ± 0.2 |
| 252012 | 1008 | 74479288222 | 003.000, 2017-09-29 | 2.5 ± 0.2 | 2.0 ± 0.2 | 1.2 max | 0.6 ± 0.2 |
| 322510 | 1210 | 74479298222 | 002.000, 2017-09-29 | 3.2 ± 0.2 | 2.5 ± 0.2 | 1.0 max | 0.6 ± 0.2 |
| 322512 | 1210 | 74479299147 | 002.000, 2017-09-29 | 3.2 ± 0.2 | 2.5 ± 0.2 | 1.2 max | 0.6 ± 0.2 |

The model uses the middle of each range; the height, drawn as a maximum only, is used as drawn.

**Proportions, for looks only:** the molded body between the terminals sits 0.03 mm inside them on the top, bottom and sides, so the terminals show.

Size 322515 isn't here yet: no hosted copy of its datasheet was found. The catalogue's WE-PMFI models on PMCI-compatible footprints are a different series and aren't mapped here. See `COVERAGE.md`.

Use this part

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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/molded-chip-inductor/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/molded-chip-inductor/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: 0.0038 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: 563a206a35d5…

#inductor #power-inductor #chip-inductor #molded #smd #electronics

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Power molded chip SMD inductors for board layouts: molded body and the two end terminals, sized from Würth Elektronik WE-PMCI datasheets. See the README.

Molded chip inductor

Source

Size	Case	Order code read	Version, date	Length	Width	Height	Terminal length
160808	0603	74479262147	001.001, 2017-03-09	1.6 ± 0.2	0.8 ± 0.2	0.8 max	0.3 ± 0.2
201210	0805	74479275222	001.001, 2017-03-09	2.0 ± 0.2	1.25 ± 0.2	1.0 max	0.5 ± 0.3
201610	0806	74479276124	002.000, 2017-09-29	2.0 ± 0.2	1.6 ± 0.2	1.0 max	0.5 ± 0.3
252010	1008	74479287222	002.000, 2017-09-29	2.5 ± 0.2	2.0 ± 0.2	1.0 max	0.6 ± 0.2
252012	1008	74479288222	003.000, 2017-09-29	2.5 ± 0.2	2.0 ± 0.2	1.2 max	0.6 ± 0.2
322510	1210	74479298222	002.000, 2017-09-29	3.2 ± 0.2	2.5 ± 0.2	1.0 max	0.6 ± 0.2
322512	1210	74479299147	002.000, 2017-09-29	3.2 ± 0.2	2.5 ± 0.2	1.2 max	0.6 ± 0.2

The model uses the middle of each range; the height, drawn as a maximum only, is used as drawn.

Proportions, for looks only: the molded body between the terminals sits 0.03 mm inside them on the top, bottom and sides, so the terminals show.

Size 322515 isn't here yet: no hosted copy of its datasheet was found. The catalogue's WE-PMFI models on PMCI-compatible footprints are a different series and aren't mapped here. See COVERAGE.md.

1.0.0 Latest Nov 5, 2026 · 56 minutes ago

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