component

A940

Public Made by Adom

by adom

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

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A940

OSEN · Bipolar (BJT) · TO-220AB

A940 from OSEN, in a TO-220AB. 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; emitter-base voltage is limited to 7 V (VEBO) and the base-drive test condition is IB=0.5A.
2 C passive Collector (also the tab connection); VCBO 170 V, VCEO 150 V, continuous collector current 1.5 A, collector dissipation 25 W at Tc=25°C.
3 E passive Emitter; the current return terminal of the transistor, with VEBO limited to 7 V.

Key specifications

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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Collector-Base Voltage VCBO 170 V Tc=25°C 2
Collector-Emitter Voltage VCEO 150 V Tc=25°C 2
Emitter-Base Voltage VEBO 7 V Tc=25°C 2
Collector Current-Continuous IC 1.5 A Tc=25°C 2
Collector Power Dissipation PC 25 W Tc=25°C 2
Max. Operating junction temperature Tj 150 ℃ Tc=25°C 2
Storage Temperature Tstg -55 125 ℃ Tc=25°C 2
Collector Cutoff Current ICBO 10 µA VCE=180V，IB=0 3
Emitter Cutoff Current IEBO 10 µA VEB=7V，IC=0 3
Collector Emitter Sustaining voltage (Note 1) BVCEO 150 V IC=2mA，IB=0 3
Collector Emitter Saturation Voltage (Note 1) VCE(sat) 1 V IC=5A,IB=0.5A 3
DC Current Gain (Note 1) hFE 70 200 IC=0.5A，VCE=5V 3

CAD (KiCad official)

  • Symbol: A940
  • Footprint: Package_TO_SOT_THT:TO-220-3_Vertical
  • 3D model: TO-220AB (KiCad packages3D, STEP)
  • 3D model files: a940-etched.step / a940-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); a940.step / a940.glb are the bare package body.

Provenance

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

  • Datasheet: OSEN datasheet (3 pp, sha256 d2f2c3591aa110ff, retrieved 2026-10-15, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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