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2SA1797-Q

Public Made by Adom

by adom

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

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2SA1797-Q

Foshan Blue Rocket Elec · Bipolar (BJT) · SOT-89

2SA1797-Q from Foshan Blue Rocket Elec, in a SOT-89. 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; the datasheet gives emitter-base breakdown VEBO of -6.0 V (min -6.0 V at IE=-50μA) and emitter-base cut-off current IEBO of -0.1 μA max at VEB=-5.0 V.
2 Collector passive Collector terminal; the datasheet limits are VCBO -50 V, VCEO -50 V, continuous collector current IC -3.0 A and pulsed ICP -6.0 A, with 0.5 W collector dissipation (2.0 W when mounted on a 40×40×0.7 mm ceramic board).
3 Emitter passive Emitter terminal, the common reference for the base and collector; the datasheet gives emitter-base rating VEBO of -6.0 V.

Key specifications

Parameter Value
Manufacturer Foshan Blue Rocket Elec
Package SOT-89
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 to Base Breakdown Voltage VCBO -50 V IC=-50μA 2
Collector to Emitter Breakdown Voltage VCEO -50 V IC=-1.0mA 2
Emitter to Base Breakdown Voltage VEBO -6 V IE=-50μA 2
Collector Cut-Off Current ICBO -0.1 μA VCB=-50V 2
Emitter Base Cut-Off Current IEBO -0.1 μA VEB=-5.0V 2
Collector to Emitter Saturation Voltage VCE(sat) -0.15 -0.35 V IC=-1.0A IB=-50mA 2
Transition Frequency fT 200 MHz VCE=-2.0V IC=-0.5A f=100MHz 2
Collector Output Capacitance Cob 36 pF VCB=-10V IE=0 f=1.0MHz 2
Collector to Base Voltage VCBO -50 V 2
Collector to Emitter Voltage VCEO -50 V 2
Emitter to Base Voltage VEBO -6 V 2
Collector Current-Continuous IC -3 A 2
Collector Current-Continuous (Pulse) ICP -6 A 2
Collector Power Dissipation PC 0.5 W Ta=25℃ (not mounted) 2
Collector Power Dissipation (mounted) PC 2 W mounted on 40×40×0.7mm ceramic board 2
Junction Temperature Tj 150 ℃ 2
Storage Temperature Range Tstg -55 150 ℃ 2

CAD (KiCad official)

  • Symbol: 2SA1797-Q
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: 2sa1797-q-etched.step / 2sa1797-q-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 2sa1797-q.step / 2sa1797-q.glb are the bare package body.

Provenance

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

  • Datasheet: Foshan Blue Rocket Elec datasheet (6 pp, sha256 6d450df68ef7ea8b, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF