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MMDT3946-7-F

Public Made by Adom

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

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MMDT3946-7-F

Diodes Incorporated · Bipolar (BJT) · SOT-363

MMDT3946-7-F from Diodes Incorporated, 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 E2 passive Emitter of the NPN 3904 transistor (VCEO 40 V, IC 200 mA max).
2 B2 passive Base of the NPN 3904 transistor (VEBO 6.0 V max).
3 C1 passive Collector of the PNP 3906 transistor (VCEO -40 V, IC -200 mA max).
4 E1 passive Emitter of the PNP 3906 transistor (VEBO -5.0 V max).
5 B1 passive Base of the PNP 3906 transistor.
6 C2 passive Collector of the NPN 3904 transistor (VCBO 60 V, VCEO 40 V, IC 200 mA max).

Key specifications

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

CAD (KiCad official)

  • Symbol: MMDT3946-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SOT-363 (KiCad packages3D, STEP)
  • 3D model files: mmdt3946-7-f-etched.step / mmdt3946-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmdt3946-7-f.step / mmdt3946-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (8 pp, sha256 eb8bcf40ea36d64b, retrieved 2026-10-09, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+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