component

TIP42A

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-thyristorstip42afactory-2.0.0extractor-text

Verified TIP42A

by Ray · last 6 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

6 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: TIP42A · 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 C2935191, digikey 497-2552-5-ND, mouser 511-TIP42A
  • ✓family: TO-220-3_Vertical
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-lr75ei7v/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✓ tip42a.kicad_sym✓ tip42a.kicad_mod✓ tip42a.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 1h ago
viewers tip42a: viewers · Ray 1h ago
package.json Publish 0.1.0 · Ray 1h ago
page.json Set visibility: public · Ray 1h ago
README.md Publish 0.1.0 · Ray 1h ago
tip42a-etched.glb Publish 0.1.0 · Ray 1h ago
tip42a-etched.step tip42a: factory component page (tier=mfr) · Ray 1h ago
tip42a-hero.glb tip42a: hero GLB from the etched model (keeps the MPN mark) · Ray 1h ago
tip42a-hero.overlay.json Publish 0.1.0 · Ray 1h ago
tip42a.glb Publish 0.1.0 · Ray 1h ago
tip42a.kicad_mod Publish 0.1.0 · Ray 1h ago
tip42a.kicad_sym Publish 0.1.0 · Ray 1h ago
tip42a.lbr Publish 0.1.0 · Ray 1h ago
tip42a.step Publish 0.1.0 · Ray 1h ago
verification.json Verified: Published by the parts factory: tier mfr, 3 pins · Ray 1h ago

TIP42A

STMicroelectronics · Bipolar (BJT) · TO-220

TIP42A 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 that controls the PNP transistor; for PNP types voltage and current values are negative, with IB max 3 mA and VEBO max 5 V.
2 C passive Collector terminal (also connected to the TO-220 tab per package drawing), with VCEO of 60 V, VCBO of 60 V, IC of 6 A and ICM of 10 A (negative for PNP).
3 E passive Emitter terminal of the PNP transistor, with VEBO (emitter-base) rating of 5 V and negative voltage and current values for PNP types.

Key specifications

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

CAD (KiCad official)

  • Symbol: TIP42A
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220 (KiCad packages3D, STEP)
  • 3D model files: tip42a-etched.step / tip42a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tip42a.step / tip42a.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (10 pp, sha256 f9b4b425f6166006, retrieved 2026-11-06, 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