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ZMM12V

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YONGYUTAI Zener Diodes, LL-34. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ZMM12V

YONGYUTAI · Zener Diodes · LL-34

ZMM12V from YONGYUTAI, in a LL-34. 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 K passive Cathode, the end of the glass MiniMELF body carrying the cathode mark band; for ZMM12V it is taken positive in Zener (reverse) operation, with VZ 11.4...12.7 V at IZT = 5 mA.
2 A passive Anode, the end opposite the cathode band; Ptot is 500 mW and Tj is 175 °C max, valid with the electrodes held at ambient temperature.

Key specifications

Parameter Value
Manufacturer YONGYUTAI
Package LL-34
Category Diodes
Pins 2

CAD (KiCad official)

  • Symbol: ZMM12V
  • Footprint: Diode_SMD:D_MiniMELF
  • 3D model: LL-34 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: YONGYUTAI datasheet (8 pp, sha256 0084e01d107036d6, retrieved 2026-10-12, 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