component

ZMM7B5

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by adom

MSKSEMI 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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ZMM7B5

MSKSEMI · Zener Diodes · LL-34

ZMM7B5 from MSKSEMI, 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 MSKSEMI
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 7.35 7.65 V IZT = 5 mA; tp = 20 ms 3
Dynamic resistance (Zener impedance) ZZT 7 Ohm IZT = 5 mA 3
Dynamic resistance at knee (Zener impedance) ZZK 50 Ohm IZK = 1 mA 3
Reverse leakage current 0.1 uA Ta = 25 C; VR = 5 V 3
Reverse leakage current 2 uA Ta = 125 C; VR = 5 V 3
Forward voltage VF 1 V IF = 100 mA; electrodes kept at ambient temperature 2
Power dissipation Ptot 500 mW Valid provided electrodes are kept at ambient temperature 2
Junction temperature Tj 175 C 2
Storage temperature range Tstg -55 175 C 2
Thermal resistance junction to ambient air RthetaJA 0.3 K/mW Valid provided electrodes are kept at ambient temperature 2
Nominal Zener voltage VZnom 7.5 V 3

CAD (KiCad official)

  • Symbol: ZMM7B5
  • Footprint: Diode_SMD:D_MiniMELF
  • 3D model: LL-34 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: MSKSEMI datasheet (4 pp, sha256 1bfe640430f80bfb, retrieved 2026-10-15, 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