component
AD-2SA1797-Q
Public Made by Adomby adom
Changjing Bipolar (BJT), SOT-89-3L. 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
markdownAD-2SA1797-Q
Changjing · Bipolar (BJT) · SOT-89-3L
AD-2SA1797-Q from Changjing, in a SOT-89-3L. 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 of the PNP transistor; VEBO is limited to -6 V and emitter-base cut-off current IEBO is max -100 nA at VEB = -5 V. |
| 2 | COLLECTOR | passive | Collector of the PNP transistor, connected to the SOT-89 tab; rated for VCBO/VCEO of -50 V, continuous IC of -2 A and peak ICM of -3 A. |
| 3 | EMITTER | passive | Emitter of the PNP transistor; total collector power dissipation is 500 mW and junction/storage temperature range is -55 to 150 °C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-89-3L |
| 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 | -50 | V | IC = -50µA, IE = 0A | 2 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | -50 | V | IC = -1mA, IB = 0A | 2 | ||
| Emitter-base breakdown voltage | V(BR)EBO | -6 | V | IE = -50µA, IC = 0A | 2 | ||
| Collector-base cut-off current | ICBO | -100 | nA | VCB = -50V, IE = 0A | 2 | ||
| Emitter-base cut-off current | IEBO | -100 | nA | VEB = -5V, IC = 0A | 2 | ||
| DC current gain, rank Q (AD-2SA1797-Q) | hFE | 120 | 270 | - | 2 | ||
| Collector-emitter saturation voltage | VCE(sat) | -0.35 | V | IC = -1A, IB = -50mA | 2 | ||
| Collector-base voltage | VCBO | -50 | V | 2 | |||
| Collector-emitter voltage | VCEO | -50 | V | 2 | |||
| Emitter-base voltage | VEBO | -6 | V | 2 | |||
| Collector continuous current | IC | -2 | A | 2 | |||
| Peak pulse current | ICM | -3 | A | 2 | |||
| Collector power dissipation | PC | 500 | mW | 2 | |||
| Operating junction and storage temperature range | Tj, Tstg | -55 | 150 | °C | 2 |
CAD (KiCad official)
- Symbol:
AD-2SA1797-Q - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3L (KiCad packages3D, STEP)
- 3D model files:
ad-2sa1797-q-etched.step/ad-2sa1797-q-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad-2sa1797-q.step/ad-2sa1797-q.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (6 pp, sha256
7eb563cdebd20574, retrieved 2026-11-05, tier: lcsc) - 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).