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MMBD4448SDW

Public Made by Adom

by adom

ST Semtech Switching Diodes, SOT-363. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MMBD4448SDW

ST Semtech · Switching Diodes · SOT-363

MMBD4448SDW from ST Semtech, 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 A1 passive Anode of diode 1; device limits are reverse voltage 80 V and forward continuous current 300 mA at Ta = 25 °C.
2 C1 passive Cathode of diode 1; device limits are reverse voltage 80 V and forward continuous current 300 mA at Ta = 25 °C.
3 AC2 passive Common anode/cathode terminal for diode 2 as labelled AC2; device limits are reverse voltage 80 V and forward continuous current 300 mA at Ta = 25 °C.
4 A2 passive Anode of diode 2; device limits are reverse voltage 80 V and forward continuous current 300 mA at Ta = 25 °C.
5 C2 passive Cathode of diode 2; device limits are reverse voltage 80 V and forward continuous current 300 mA at Ta = 25 °C.
6 AC1 passive Common anode/cathode terminal for diode 1 as labelled AC1; device limits are reverse voltage 80 V and forward continuous current 300 mA at Ta = 25 °C.

Key specifications

Parameter Value
Manufacturer ST Semtech
Package SOT-363
Category Diodes
Pins 6

CAD (KiCad official)

  • Symbol: MMBD4448SDW
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SOT-363 (KiCad packages3D, STEP)
  • 3D model files: mmbd4448sdw-etched.step / mmbd4448sdw-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbd4448sdw.step / mmbd4448sdw.glb are the bare package body.

Provenance

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

  • Datasheet: ST Semtech datasheet (3 pp, sha256 f781793f4b1a2007, retrieved 2026-10-09, 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