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AC857CQ-7

Public Made by Adom

by adom

Diodes Incorporated Bipolar (BJT), SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AC857CQ-7

Diodes Incorporated · Bipolar (BJT) · SOT-23-3

AC857CQ-7 from Diodes Incorporated, in a SOT-23-3. 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 PNP transistor, rated for a peak base current IBM of -200 mA (absolute maximum).
2 E passive Emitter terminal of the PNP transistor, rated for a peak emitter current IEM of -200 mA (absolute maximum); emitter-base voltage VEBO is -5.0 V.
3 C passive Collector terminal of the PNP transistor, rated for a continuous collector current IC of -100 mA and a collector-emitter voltage VCEO of -45 V.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23-3
Category Transistors/Thyristors
Pins 3

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin  Terminals: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 1

CAD (KiCad official)

  • Symbol: AC857CQ-7
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: ac857cq-7-etched.step / ac857cq-7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ac857cq-7.step / ac857cq-7.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (7 pp, sha256 4928f0a5f3262721, retrieved 2026-10-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF