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Contents

README

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MMBTA28-7-F

Diodes Incorporated · Darlington Transistors · SOT-23

MMBTA28-7-F from Diodes Incorporated, 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 B input Base of the NPN Darlington pair. Base-emitter turn-on voltage VBE(on) ≤ 2.0 V at IC = 100 mA, VCE = 5 V; emitter-base breakdown BVEBO ≥ 12 V.
2 E output Emitter of the NPN Darlington pair. Emitter-base breakdown BVEBO ≥ 12 V; sinks the composite collector-emitter current up to 500 mA continuous.
3 C passive Collector of the NPN Darlington pair. Rated BVCES ≥ 80 V and BVCBO ≥ 80 V; continuous collector current IC = 500 mA; VCE(sat) ≤ 1.5 V at IC = 100 mA, IB = 100 µA.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • MMBTA28-7-F
  • MMBTA28-13-F

CAD (KiCad official)

  • Symbol: MMBTA28-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbta28-7-f-etched.step / mmbta28-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbta28-7-f.step / mmbta28-7-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (6 pp, sha256 d1f6cfb8d400fe5c, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF