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Contents

README

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MMBD1204

onsemi · Diodes - General Purpose · SOT-23

MMBD1204 from onsemi, 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 A1 passive Anode of D1; forward voltage 550-600 mV at IF = 1 mA, max repetitive reverse voltage VRRM = 100 V, max average forward current IF(AV) = 200 mA.
2 A2 passive Anode of D2; forward voltage 550-600 mV at IF = 1 mA, max repetitive reverse voltage VRRM = 100 V, max average forward current IF(AV) = 200 mA.
3 K passive Common cathode of D1 and D2; reverse recovery time trr = 4.0 ns max (IF = IR = 10 mA, IIR = 1 mA, RL = 100 Ω), total capacitance CT = 2.0 pF max at VR = 0 V, f = 1 MHz.

Key specifications

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

CAD (KiCad official)

  • Symbol: MMBD1204
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: mmbd1204-etched.step / mmbd1204-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mmbd1204.step / mmbd1204.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (6 pp, sha256 13f67a9f7e1f2277, retrieved 2026-09-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-sonnet-4-6 (text+vision), consensus claude-opus-4-7 (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