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AD-2SA1797-Q

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Changjing Bipolar (BJT), SOT-89-3L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AD-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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad-2sa1797-q.step / ad-2sa1797-q.glb are 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, 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