component

BUL38D

Public Made by Adom

by adom

STMicroelectronics Bipolar (BJT), TO-220. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistors-thyristorsbul38dfactory-2.0.0extractor-text

Verified BUL38D

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier mfr, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: BUL38D · TO-220 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 10-page datasheet
  • ✓distributor: lcsc C16126, digikey 497-2581-5-ND, mouser 511-BUL38D
  • ✓family: TO-220-3_Vertical
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-wcysp_al/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ bul38d.kicad_sym✓ bul38d.kicad_mod✓ bul38d.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 20h ago
viewers bul38d: viewers · Ray 20h ago
bul38d-etched.glb Publish 0.1.0 · Ray 20h ago
bul38d-etched.step bul38d: factory component page (tier=mfr) · Ray 20h ago
bul38d-hero.glb bul38d: hero GLB from the etched model (keeps the MPN mark) · Ray 20h ago
bul38d-hero.overlay.json Publish 0.1.0 · Ray 20h ago
bul38d.glb Publish 0.1.0 · Ray 20h ago
bul38d.kicad_mod Publish 0.1.0 · Ray 20h ago
bul38d.kicad_sym Publish 0.1.0 · Ray 20h ago
bul38d.lbr Publish 0.1.0 · Ray 20h ago
bul38d.step Publish 0.1.0 · Ray 20h ago
package.json Publish 0.1.0 · Ray 20h ago
page.json Set visibility: public · Ray 20h ago
README.md Publish 0.1.0 · Ray 20h ago
verification.json Verified: Published by the parts factory: tier mfr, 3 pins · Ray 20h ago

BUL38D

STMicroelectronics · Bipolar (BJT) · TO-220

BUL38D from STMicroelectronics, in a TO-220. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 B input Base terminal of the NPN transistor, with emitter-base voltage rated at 9 V maximum (VEBO) and base current limited to 2 A continuous and 4 A peak (tP < 5 ms).
2 C passive Collector terminal, which is also connected to the tab, rated for VCES 800 V, VCEO 450 V, and 5 A continuous collector current (10 A peak, tP < 5 ms), with an integrated antiparallel collector-emitter diode.
3 E passive Emitter terminal of the NPN transistor, which is also the anode of the integrated antiparallel diode to the collector.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package TO-220
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: BUL38D
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: bul38d-etched.step / bul38d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bul38d.step / bul38d.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: STMicroelectronics datasheet (10 pp, sha256 57611f567fb3ec2b, retrieved 2026-11-05, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF