component
FCS957
Public Made by Adomby adom
GUOXIN JIAPIN SEMICONDUCTOR Bipolar (BJT), SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 23d ago |
| viewers | 23d ago |
| fcs957-etched.glb | 23d ago |
| fcs957-etched.step | 23d ago |
| fcs957-hero.glb | 23d ago |
| fcs957-hero.overlay.json | 23d ago |
| fcs957.glb | 23d ago |
| fcs957.kicad_mod | 23d ago |
| fcs957.kicad_sym | 23d ago |
| fcs957.lbr | 23d ago |
| fcs957.step | 23d ago |
| package.json | 23d ago |
| page.json | 23d ago |
| README.md | 23d ago |
FCS957
GUOXIN JIAPIN SEMICONDUCTOR · Bipolar (BJT) · SOT-323
FCS957 from GUOXIN JIAPIN SEMICONDUCTOR, in a SOT-323. 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 | input | Base terminal of the FCS957 NPN transistor (基极); the datasheet gives no pin-specific limit, and the device ratings apply, including VEBO 1.5 V and VCBO 20 V. |
| 2 | E | passive | Emitter terminal of the FCS957 NPN transistor (发射极); the datasheet gives no pin-specific limit, and the device ratings apply, including VEBO 1.5 V and IC 100 mA. |
| 3 | C | passive | Collector terminal of the FCS957 NPN transistor (集电极); the datasheet gives no pin-specific limit, and the device ratings apply, including VCEO 10 V, VCBO 20 V and IC 100 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GUOXIN JIAPIN SEMICONDUCTOR |
| Package | SOT-323 |
| 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 | VCBO | 20 | V | IC=1.0µA | 2 | ||
| Collector-base leakage current | ICBO | 0.1 | µA | VCB=10V | 2 | ||
| Emitter-base leakage current | IEBO | 0.1 | µA | VEB=1V | 2 | ||
| DC current gain | hFE | 90 | 150 | 250 | VCE=6V, IC=30mA | 2 | |
| Transition frequency | fT | 8 | GHz | VCE=6V, IC=30mA, f=1GHz | 2 | ||
| Output feedback capacitance | Cre | 0.65 | pF | VCB=10V, IE=0mA, f=1MHz | 2 | ||
| Power gain | / S21e /2 | 12 | dB | VCE=6V, IC=30mA, f=1GHz | 2 | ||
| Noise figure | NF | 1.5 | dB | VCE=6V, IC=5mA, f=1GHz | 2 | ||
| Collector-base voltage (absolute max) | VCBO | 20 | V | TA=25℃ | 1 | ||
| Collector-emitter voltage (absolute max) | VCEO | 10 | V | TA=25℃ | 1 | ||
| Emitter-base voltage (absolute max) | VEBO | 1.5 | V | TA=25℃ | 1 | ||
| Collector current (absolute max) | IC | 100 | mA | TA=25℃ | 1 | ||
| Power dissipation (absolute max) | PC | 200 | mW | TA=25℃ | 1 | ||
| Junction temperature (absolute max) | Tj | 150 | ℃ | 1 | |||
| Storage temperature range | Tstg | -65 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
FCS957 - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
fcs957-etched.step/fcs957-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fcs957.step/fcs957.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GUOXIN JIAPIN SEMICONDUCTOR datasheet (5 pp, sha256
6fadd0e90ab078d5, retrieved 2026-10-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).