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ZMM5245BPF

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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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ZMM5245BPF

ST(Semtech) · Zener Diodes · LL-34

ZMM5245BPF 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 VZT 14.25 15 15.75 V at IZT = 8.5 mA, Ta=25℃, tp=20 ms; VZnom 15 V, B suffix ±5% 4
Zener Test Current IZT 8.5 mA Ta=25℃ 4
Dynamic Resistance ZZT 16 Ω at IZT = 8.5 mA 4
Dynamic Resistance (knee) ZZK 600 Ω at IZK = 0.25 mA 4
Reverse Current IR 0.1 µA at VR = 11 V 4
Forward Voltage VF 1.1 V at IF = 200 mA 2
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: ZMM5245BPF
  • 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