component
2SB1197
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
markdown2SB1197
Changjing · Bipolar (BJT) · SOT-23
2SB1197 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; the emitter-base breakdown voltage V(BR)EBO is -5 V minimum at IE = -50 µA, and the datasheet's emitter-base cut-off test uses VEB = -4 V. |
| 2 | EMITTER | passive | Emitter terminal of the PNP transistor; the datasheet limits the emitter-base voltage VEBO to -5 V and the continuous collector current IC to -0.8 A. |
| 3 | COLLECTOR | passive | Collector terminal of the PNP transistor; the datasheet limits the collector-base voltage VCBO to -40 V and the collector-emitter voltage VCEO to -32 V, with a continuous collector current of -0.8 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 | -40 | V | IC =-50μA, IE=0 | 1 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | -32 | V | IC = -1mA, IB=0 | 1 | ||
| Emitter-base breakdown voltage | V(BR)EBO | -5 | V | IE= -50μA, IC=0 | 1 | ||
| Collector cut-off current | ICBO | -0.5 | μA | VCB=-20V,IE=0 | 1 | ||
| Emitter cut-off current | IEBO | -0.5 | μA | VEB= -4V,IC=0 | 1 | ||
| DC current gain | hFE | 82 | 390 | VCE=-3V,IC= -100mA | 1 | ||
| Collector-emitter saturation voltage | VCE(sat) | -0.5 | V | IC=-500 mA, IB= -50mA | 1 | ||
| Transition frequency | fT | 50 | 200 | MHz | VCE=-5V, IC= -50mA, f=100MHz | 1 | |
| Collector output capacitance | Cob | 12 | 30 | pF | VCB=-10V,IE=0,f=1MHz | 1 | |
| Collector-Base Voltage | VCBO | -40 | V | 1 | |||
| Collector-Emitter Voltage | VCEO | -32 | V | 1 | |||
| Emitter-Base Voltage | VEBO | -5 | V | 1 | |||
| Collector Current -Continuous | IC | -0.8 | A | 1 | |||
| Collector Power Dissipation | PC | 200 | mW | 1 | |||
| Operation Junction and Storage Temperature Range | TJ,Tstg | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
2SB1197 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
2sb1197-etched.step/2sb1197-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);2sb1197.step/2sb1197.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (4 pp, sha256
50fb4e11b2e2e304, 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).