component
2SA1797G-B-AB3-R
Public Made by Adomby adom
UTC Unisonic Tech Bipolar (BJT), SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdown2SA1797G-B-AB3-R
UTC Unisonic Tech · Bipolar (BJT) · SOT-89-3
2SA1797G-B-AB3-R from UTC Unisonic Tech, in a SOT-89-3. 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 | passive | Base terminal of the PNP transistor; the datasheet specifies VCE(SAT) of -0.35V max at IC/IB = -1A/-50mA, with the base driven at -50mA for that rating. |
| 2 | C | passive | Collector terminal; limited to -2A DC (-5A pulse, PW=10ms), VCBO and VCEO of -50V, and 0.5W collector power dissipation for the SOT-89 package. |
| 3 | E | passive | Emitter terminal; the emitter-base breakdown voltage is -6V (VEBO) and the device is rated to a junction temperature of 150°C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UTC Unisonic Tech |
| Package | SOT-89-3 |
| 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 | BVCBO | -50 | V | IC = -50A | 2 | ||
| Collector-Emitter Breakdown Voltage | BVCEO | -50 | V | IC = -1mA | 2 | ||
| Emitter-Base Breakdown Voltage | BVEBO | -6 | V | IE = -50A | 2 | ||
| Collector Cutoff Current | ICBO | -0.1 | A | VCB = -50V | 2 | ||
| Emitter Cutoff Current | IEBO | -0.1 | A | VEB = -5V | 2 | ||
| Collector-Emitter Saturation Voltage | VCE(SAT) | -0.15 | -0.35 | V | IC/IB = -1A/-50mA (Note) | 2 | |
| DC Current Gain (rank B, per classification 200-400) | hFE | 200 | 400 | VCE = -2V, IC=-0.5A (Note) | 2 | ||
| Transition Frequency | fT | 200 | MHz | VCE = -2V, IE=0.5A, f=100MHz | 2 | ||
| Output Capacitance | COB | 36 | pF | VCB = -10V, IE=0A, f=1MHz | 2 | ||
| Collector-Base Voltage | VCBO | -50 | V | 2 | |||
| Collector-Emitter Voltage | VCEO | -50 | V | 2 | |||
| Emitter-Base Voltage | VEBO | -6 | V | 2 | |||
| Collector Current DC | IC | -2 | A | DC | 2 | ||
| Collector Current PULSE | IC | -5 | A | Single pulse, PW=10ms (Note 1) | 2 | ||
| Collector Power Dissipation (SOT-89) | PC | 0.5 | W | SOT-89 package | 2 | ||
| Junction Temperature | TJ | 150 | C | 2 | |||
| Storage Temperature | TSTG | -55 | 150 | C | 2 |
CAD (KiCad official)
- Symbol:
2SA1797G-B-AB3-R - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
2sa1797g-b-ab3-r-etched.step/2sa1797g-b-ab3-r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2sa1797g-b-ab3-r.step/2sa1797g-b-ab3-r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UTC Unisonic Tech datasheet (4 pp, sha256
f843a28006328e36, retrieved 2026-10-17, 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).