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ZMM5226BPF

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ST(Semtech) Zener Diodes, LL-34. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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ZMM5226BPF

ST(Semtech) · Zener Diodes · LL-34

ZMM5226BPF from ST(Semtech), 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 banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer ST(Semtech)
Package LL-34
Category Diodes
Pins 2

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Zener Voltage Nominal tolerance (B suffix) -5 5 % Suffix B 1
Zener Voltage VZT 3.14 3.3 3.46 V at IZT = 20 mA, Ta = 25℃, tp = 20 ms 4
Dynamic Resistance ZZT 28 Ω at IZT = 20 mA 4
Dynamic Resistance (knee) ZZK 1600 Ω at IZK = 0.25 mA 4
Reverse Current IR 25 µA at VR = 1 V 4
Forward Voltage VF 1.1 V IF = 200 mA 4
Power Dissipation Ptot 500 mW Ta = 25℃, electrodes kept at ambient temperature 1
Junction Temperature Tj 175 ℃ Ta = 25℃ 1
Storage Temperature Range Tstg -65 175 ℃ Ta = 25℃ 1
Thermal Resistance Junction to Ambient RθJA 300 ℃/W electrodes kept at ambient temperature 1

CAD (KiCad official)

  • Symbol: ZMM5226BPF
  • Footprint: Diode_SMD:D_MiniMELF
  • 3D model: LL-34 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: ST(Semtech) datasheet (6 pp, sha256 5df6bcb26720183b, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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