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Contents

README

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Z0409MB

STMicroelectronics · Thyristors (SCR)/Modules · DPAK

Z0409MB from STMicroelectronics, in a DPAK. 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 G input Gate terminal for triggering the triac with maximum peak gate current 1.2 A (tp = 20 µs) and maximum power dissipation 0.5 W.
2 A1 bidirectional Anode 1 main current terminal rated for maximum 4 A RMS on-state current and 600 V repetitive peak off-state voltage (Tj = 125 °C).
3 A2 bidirectional Anode 2 main current terminal rated for maximum 4 A RMS on-state current and 600 V repetitive peak off-state voltage (Tj = 125 °C), connected to package tab for heat dissipation.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package DPAK
Category Transistors/Thyristors
Pins 3

CAD (KiCad official)

  • Symbol: Z0409MB
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: DPAK (KiCad packages3D, STEP)
  • 3D model files: z0409mb-etched.step / z0409mb-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); z0409mb.step / z0409mb.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (11 pp, sha256 7de39d7020a24040, retrieved 2026-09-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-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