Sign in with STEVE

steve/alloy-power-inductor

Shielded metal-alloy SMD power inductors in the Würth WE-MAPI sizes, 2.0 x 1.6 mm to 4.1 x 4.1 mm, by the maker's datasheets.

v1.0.0 Latest STEVE MIT 0

Not affiliated with or endorsed by Würth.

Isometric
part.py 54 lines · Python · STEVE runtime · checked
Download
1"""Shielded metal-alloy SMD power inductor, Würth WE-MAPI sizes. Centred on the origin, sitting on the XY plane, with the two bottom terminals at the -X
2and +X ends. Dimensions from the Würth datasheet for one order code of the size named by `size`; see the README."""
3from steve import Model
4
5size = "3015" # WE-MAPI size code
6
7# size: (length, width, height max, terminal length, corner notch (depth, terminal width at the notch) or None), ranges (min, max), mm. Würth Elektronik
8# WE-MAPI datasheets, page 1, Dimensions, one per size (order code, revision, date): 2010 74438343012 001.002 2018-02-01; 2506 74438321010 001.002
9# 2015-11-10; 2508 74438322022 001.002 2015-11-10; 2510 74438323010 001.002 2015-11-10; 2512 74438324010 001.001 2015-11-10; 3012 74438334047 001.002
10# 2015-11-10; 3015 74438335330 001.002 2015-11-10; 3020 744383360047 001.001 2015-11-10; 4020 74438356033 001.000 2015-11-10; 4030 74438357022 001.000
11# 2016-06-21. The 30xx terminal length is printed as 1.2 maximum only.
12SIZES = {
13 "2010": ((1.8, 2.2), (1.4, 1.8), 1.0, (0.4, 0.8), None),
14 "2506": ((2.3, 2.7), (1.8, 2.2), 0.6, (0.5, 0.9), None),
15 "2508": ((2.3, 2.7), (1.8, 2.2), 0.8, (0.5, 0.9), None),
16 "2510": ((2.3, 2.7), (1.8, 2.2), 1.0, (0.5, 0.9), None),
17 "2512": ((2.3, 2.7), (1.8, 2.2), 1.2, (0.5, 0.9), None),
18 "3012": ((2.8, 3.2), (2.8, 3.2), 1.2, (1.2, 1.2), None),
19 "3015": ((2.8, 3.2), (2.8, 3.2), 1.5, (1.2, 1.2), None),
20 "3020": ((2.8, 3.2), (2.8, 3.2), 2.0, (1.2, 1.2), None),
21 "4020": ((3.9, 4.3), (3.9, 4.3), 2.1, (1.05, 1.45), ((0.25, 0.65), (2.2, 2.6))),
22 "4030": ((3.9, 4.3), (3.9, 4.3), 3.1, (1.05, 1.45), ((0.25, 0.65), (2.2, 2.6))),
23}
24PAD_T = 0.1 # terminal thickness under the body: a proportion, for looks
25
26
27def mid(pair):
28 return (pair[0] + pair[1]) / 2
29
30
31L, W, top, T, notch = SIZES[size]
32length, width, term_l = mid(L), mid(W), mid(T)
33model = Model()
34model.plane("body_plane", on="XY", offset=PAD_T, name="Body")
35with model.sketch("body_sketch", on="body_plane", name="Body") as sk:
36 sk.rect("body_rect", (-length / 2, -width / 2), (length / 2, width / 2))
37model.extrude("body", "body_sketch", distance=top - PAD_T, name="Body")
38with model.sketch("terms_sketch", on="XY", name="Terminals") as sk:
39 if notch is None:
40 sk.rect("term_left", (-length / 2, -width / 2), (-length / 2 + term_l, width / 2))
41 sk.rect("term_right", (length / 2 - term_l, -width / 2), (length / 2, width / 2))
42 else:
43 depth, narrow = mid(notch[0]), mid(notch[1]) # the outer `depth` of each terminal is `narrow` wide; the rest is the full width
44 sk.rect("term_left", (-length / 2 + depth, -width / 2), (-length / 2 + term_l, width / 2))
45 sk.rect("term_right", (length / 2 - term_l, -width / 2), (length / 2 - depth, width / 2))
46model.extrude("terms", "terms_sketch", distance=PAD_T + 0.05, name="Terminals")
47if notch is not None:
48 with model.sketch("tips_sketch", on="XY", name="Terminals") as sk:
49 sk.rect("tip_left", (-length / 2, -narrow / 2), (-length / 2 + depth + 0.05, narrow / 2))
50 sk.rect("tip_right", (length / 2 - depth - 0.05, -narrow / 2), (length / 2, narrow / 2))
51 model.extrude("tips", "tips_sketch", distance=PAD_T + 0.05, name="Terminals")
52model.material("pla", color="#3a3c40")
53result = model.result()
54

Shielded metal-alloy SMD power inductors for board layouts: body and the two bottom terminals, sized from Würth Elektronik WE-MAPI datasheets. See the README.

Metal-alloy power inductor

Shielded metal-alloy SMD power inductors in the Würth Elektronik WE-MAPI sizes: the body and the two terminals underneath. The inductor is centred on the origin, sitting on the XY plane, with the terminals at the -X and +X ends. Inductance doesn't change the outside of a size.

Source

Würth Elektronik WE-MAPI 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 Order code read Revision Date Length Width Height max Terminal
2010 74438343012 001.002 2018-02-01 2.0 ± 0.2 1.6 ± 0.2 1.0 0.6 ± 0.2
2506 74438321010 001.002 2015-11-10 2.5 ± 0.2 2 ± 0.2 0.6 0.7 ± 0.2
2508 74438322022 001.002 2015-11-10 2.5 ± 0.2 2 ± 0.2 0.8 0.7 ± 0.2
2510 74438323010 001.002 2015-11-10 2.5 ± 0.2 2 ± 0.2 1 0.7 ± 0.2
2512 74438324010 001.001 2015-11-10 2.5 ± 0.2 2 ± 0.2 1.2 0.7 ± 0.2
3012 74438334047 001.002 2015-11-10 3 ± 0.2 3 ± 0.2 1.2 1.2 max
3015 74438335330 001.002 2015-11-10 3 ± 0.2 3 ± 0.2 1.5 1.2 max
3020 744383360047 001.001 2015-11-10 3 ± 0.2 3 ± 0.2 2 1.2 max
4020 74438356033 001.000 2015-11-10 4.1 ± 0.2 4.1 ± 0.2 2.1 1.25 ± 0.2
4030 74438357022 001.000 2016-06-21 4.1 ± 0.2 4.1 ± 0.2 3.1 1.25 ± 0.2

The terminals run the full width at each end. The 4020 and 4030 terminals have their outer corners cut back: the outer 0.45 ± 0.2 is 2.4 ± 0.2 wide. The model uses the middle of each range and the maximum height, so read it as an envelope; the 30xx terminal length is printed as 1.2 maximum only, and the model uses 1.2.

Proportions, for looks only: the terminals' 0.1 mm thickness under the body.

Sizes 1610, 3010, 5020 and 5030 aren't here yet (no datasheet copy read), nor Würth's other series; see COVERAGE.md.

  1. 1.0.0 Latest
More #inductor
STEVEMIT

steve/wirewound-power-inductor

Wire-wound shielded SMD power inductors in the Sunlord SWPA sizes, 2.5 x 2.0 mm to 8 x 8 mm, by the maker's dimension table.

0 23 sizes 0 2 hours ago v1.0.0
STEVEMIT

steve/high-current-inductor

Shielded high-current SMD power inductors in the Würth WE-HCI sizes, 5.3 x 5.6 mm to 22 x 22.5 mm, by the maker's datasheets.

0 8 sizes 0 2 hours ago v1.0.0
STEVEMIT

steve/flat-wire-inductor

Shielded SMD flat-wire high-current inductors in the Würth WE-HCM sizes, 7 x 7 mm to 13.3 x 13.5 mm, by the maker's datasheets.

0 9 sizes 0 1 hour ago v1.0.0
STEVEMIT

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.

0 7 sizes 0 1 hour ago v1.0.0