component
A940
Public Made by Adomby adom
OSEN Bipolar (BJT), TO-220AB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownA940
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);a940.step/a940.glbare 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).