component
FCR520B
Public Made by Adomby adom
GUOXIN JIAPIN SEMICONDUCTOR 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
markdownFCR520B
GUOXIN JIAPIN SEMICONDUCTOR · Bipolar (BJT) · SOT-23
FCR520B from GUOXIN JIAPIN SEMICONDUCTOR, 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 | B | input | Base of the planar NPN transistor; the datasheet gives the base-emitter reverse limit VEBO 2.5 V and the base-collector breakdown VCBO 20 V (absolute maximum ratings at TA=25°C). |
| 2 | E | passive | Emitter of the planar NPN transistor; the datasheet gives the absolute maximum IC of 70 mA and PC of 200 mW at TA=25°C for the device. |
| 3 | C | passive | Collector of the planar NPN transistor; the datasheet gives the collector-emitter breakdown VCEO of 12 V and the absolute maximum junction temperature Tj of 150 °C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GUOXIN JIAPIN SEMICONDUCTOR |
| 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 (limiting conditions) | VCBO | 20 | V | TA=25℃ | 1 | ||
| Collector-emitter breakdown voltage (limiting conditions) | VCEO | 12 | V | TA=25℃ | 1 | ||
| Emitter-base breakdown voltage (limiting conditions) | VEBO | 2.5 | V | TA=25℃ | 1 | ||
| Collector current | IC | 70 | mA | TA=25℃ | 1 | ||
| Power dissipation | PC | 200 | mW | TA=25℃ | 1 | ||
| Junction temperature | Tj | 150 | ℃ | 1 | |||
| Storage temperature | Tstg | -65 | 150 | ℃ | 1 | ||
| DC current gain | HFE | 90 | 150 | 250 | VCE=6V,IC=20mA | 2 | |
| Gain-bandwidth product | fT | 8 | GHz | VCE=6V,IC=20mA,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=20mA,f=0.9GHz | 2 | ||
| Noise figure | NF | 1.6 | dB | VCE=6V,IC=5mA,f=0.9GHz | 2 | ||
| Collector-base leakage current | ICBO | 0.1 | µA | VCB=10V | 2 | ||
| Emitter-base leakage current | IEBO | 0.1 | µA | VEB=1V | 2 | ||
| Collector-base breakdown voltage (electrical characteristics) | VCBO | 20 | V | IC=1.0µA | 2 |
CAD (KiCad official)
- Symbol:
FCR520B - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
fcr520b-etched.step/fcr520b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);fcr520b.step/fcr520b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GUOXIN JIAPIN SEMICONDUCTOR datasheet (5 pp, sha256
bfefc2ce4b344f98, 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).