component
2SA1585
Public Made by Adomby adom
Changjing Bipolar (BJT), SOT-23. 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
markdown2SA1585
Changjing · Bipolar (BJT) · SOT-23
2SA1585 from Changjing, in a SOT-23. 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 | BASE | input | Base terminal of the PNP transistor, with emitter-base breakdown of -6 V (min/typ/max as -6 V) and a base-emitter reverse test at VEB = -5 V for emitter cut-off current. |
| 2 | EMITTER | passive | Emitter terminal of the PNP transistor, rated with a maximum emitter-base voltage VEBO of -6 V and emitter cut-off current IEBO of -0.1 µA at VEB = -5 V. |
| 3 | COLLECTOR | passive | Collector terminal of the PNP transistor, rated for a collector-base voltage VCBO of -20 V, a collector-emitter voltage VCEO of -20 V and a continuous collector current of -2 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-23 |
| 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 breakdown voltage | V(BR)CBO | -20 | V | IC= -50µA, IE=0 | 1 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | -20 | V | IC= -1 mA, IB=0 | 1 | ||
| Emitter-base breakdown voltage | V(BR)EBO | -6 | V | IE=- 50µA, IC=0 | 1 | ||
| Collector cut-off current | ICBO | -0.1 | µA | VCB=-20V, IE=0 | 1 | ||
| Emitter cut-off current | IEBO | -0.1 | µA | VEB= -5V, IC=0 | 1 | ||
| DC current gain | hFE | 120 | 390 | VCE=-2 V, IC= -0.1A | 1 | ||
| Collector-emitter saturation voltage | VCEsat | -0.5 | V | IC= -2A, IB=-0.1A | 1 | ||
| Transition frequency | fT | 240 | MHz | VCE=-2V, IC=-0.5A, f=100MHz | 1 | ||
| Collector-base voltage | VCBO | -20 | V | 1 | |||
| Collector-emitter voltage | VCEO | -20 | V | 1 | |||
| Emitter-base voltage | VEBO | -6 | V | 1 | |||
| Collector current, continuous | IC | -2 | A | 1 | |||
| Collector power dissipation | PC | 350 | mW | 1 | |||
| Junction temperature | Tj | 150 | ℃ | 1 | |||
| Storage temperature range | Tstg | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
2SA1585 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
2sa1585-etched.step/2sa1585-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2sa1585.step/2sa1585.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (4 pp, sha256
499a304fa5bfe6bb, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).