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MMDT5551-JSM

Public Made by Adom

by adom

JSMSEMI Bipolar (BJT), SOT-363. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MMDT5551-JSM

JSMSEMI · Bipolar (BJT) · SOT-363

MMDT5551-JSM from JSMSEMI, in a SOT-363. 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 E1 passive Emitter of transistor 1 (NPN), read from the pin-numbered schematic on page 1; VEBO max 6 V.
2 B1 input Base of transistor 1 (NPN), read from the pin-numbered schematic on page 1; base-emitter saturation voltage max 1 V.
3 C2 passive Collector of transistor 2 (NPN), read from the pin-numbered schematic on page 1; VCBO 180 V, VCEO 160 V, IC 0.2 A continuous.
4 E2 passive Emitter of transistor 2 (NPN), read from the pin-numbered schematic on page 1; VEBO max 6 V.
5 B2 input Base of transistor 2 (NPN), read from the pin-numbered schematic on page 1; base-emitter saturation voltage max 1 V.
6 C1 passive Collector of transistor 1 (NPN), read from the pin-numbered schematic on page 1; VCBO 180 V, VCEO 160 V, IC 0.2 A continuous.

Key specifications

Parameter Value
Manufacturer JSMSEMI
Package SOT-363
Category Transistors/Thyristors
Pins 6

CAD (KiCad official)

  • Symbol: MMDT5551-JSM
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SOT-363 (KiCad packages3D, STEP)
  • 3D model files: mmdt5551-jsm-etched.step / mmdt5551-jsm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmdt5551-jsm.step / mmdt5551-jsm.glb are the bare package body.

Provenance

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

  • Datasheet: JSMSEMI datasheet (3 pp, sha256 f58d466365a22560, retrieved 2026-10-09, 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