component

MMBD4148

Public Made by Adom

by adom

hongjiacheng Switching Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MMBD4148

hongjiacheng · Switching Diodes · SOT-23

MMBD4148 from hongjiacheng, in a SOT-23. 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 A passive Anode of the single diode; the function diagram connects the diode between pin 1 and pin 3, with VRRM 100 V and IF(AV) 150 mA.
2 NC unconnected No internal connection; the function diagram shows pin 2 with no connection to the diode.
3 K passive Cathode of the single diode, with reverse breakdown voltage 75 V at IR=100 µA.

Key specifications

Parameter Value
Manufacturer hongjiacheng
Package SOT-23
Category Diodes
Pins 3

CAD (KiCad official)

  • Symbol: MMBD4148
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbd4148-etched.step / mmbd4148-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbd4148.step / mmbd4148.glb are the bare package body.

Provenance

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

  • Datasheet: hongjiacheng datasheet (3 pp, sha256 1cd59e50afde722e, 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