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MMST5551-JSM

Public Made by Adom

by adom

JSMSEMI Bipolar (BJT), SOT-323. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
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MMST5551-JSM

JSMSEMI · Bipolar (BJT) · SOT-323

MMST5551-JSM from JSMSEMI, 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 BASE input Base of the NPN transistor; emitter-base breakdown voltage is 6 V minimum (VEBO rating 6 V).
2 EMITTER passive Emitter of the NPN transistor; collector current is rated up to 600 mA.
3 COLLECTOR passive Collector of the NPN transistor; VCBO 180 V, VCEO 160 V, IC 600 mA, power dissipation 200 mW.

Key specifications

Parameter Value
Manufacturer JSMSEMI
Package SOT-323
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: MMST5551-JSM
  • Footprint: Package_TO_SOT_SMD:SOT-323_SC-70
  • 3D model: SOT-323 (KiCad packages3D, STEP)
  • 3D model files: mmst5551-jsm-etched.step / mmst5551-jsm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmst5551-jsm.step / mmst5551-jsm.glb are the bare package body.

Provenance

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

  • Datasheet: JSMSEMI datasheet (3 pp, sha256 586004260722ddac, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-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