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Contents

README

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BC817-40-TP

MCC Micro Commercial Components · Bipolar Transistors - BJT · SOT-23

BC817-40-TP from MCC Micro Commercial Components, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 Base input Base terminal of NPN small-signal transistor; maximum emitter-base voltage rating is 5V.
2 Emitter passive Emitter terminal; base-emitter voltage is 1.2V at 500mA collector current.
3 Collector passive Collector terminal; maximum collector-emitter voltage is 45V with maximum collector current of 500mA.

Key specifications

Parameter Value
Manufacturer MCC Micro Commercial Components
Package SOT-23
Category Triode/MOS Tube/Transistor
Pins 3

CAD (KiCad official)

  • Symbol: BC817-40-TP
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bc817-40-tp-etched.step / bc817-40-tp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bc817-40-tp.step / bc817-40-tp.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: MCC Micro Commercial Components datasheet (4 pp, sha256 358740f3ee2bdf63, retrieved 2026-09-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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).

Datasheet PDF