component
BFS520-C
Public Made by Adomby adom
Slkor SLKORMICRO Elec Bipolar (BJT), SOT-323. 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
markdownBFS520-C
Slkor SLKORMICRO Elec · Bipolar (BJT) · SOT-323
BFS520-C from Slkor SLKORMICRO Elec, 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 NPN transistor; the datasheet gives no separate base limit, and base-emitter reverse leakage IEBO is 0.1 µA max at VEB=1 V. |
| 2 | E | passive | Emitter terminal of the NPN transistor; emitter-base breakdown voltage VEBO is 2 V (absolute maximum rating at TA=25℃). |
| 3 | C | passive | Collector terminal of the NPN transistor; limits are VCBO 20 V, VCEO 12 V and collector current IC 100 mA (absolute maximum ratings at TA=25℃). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Slkor SLKORMICRO Elec |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
BFS520-C - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
bfs520-c-etched.step/bfs520-c-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bfs520-c.step/bfs520-c.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Slkor SLKORMICRO Elec datasheet (5 pp, sha256
3709bd013c8f4c11, retrieved 2026-10-09, 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).