component

ZMM5230B

Public Made by Adom

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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ZMM5230B

MSKSEMI · Zener Diodes · LL-34

ZMM5230B 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 (suffix B, ±5%) VZnom / VZT 4.47 4.7 4.93 V IZT = 20 mA; Ta = 25 °C; pulse tp = 20 ms (note 1) 3
Zener voltage tolerance (suffix B) -5 5 % Suffix B 2
Dynamic resistance ZZT 19 Ω IZT = 20 mA; Ta = 25 °C 3
Dynamic resistance (knee) ZZK 1900 Ω IZK = 0.25 mA; Ta = 25 °C 3
Reverse current IR 5 µA VR = 2 V; Ta = 25 °C 3
Forward voltage VF 1.1 V IF = 200 mA 2
Power dissipation Ptot 500 mW 2
Junction temperature Tj 175 °C 2
Storage temperature range Tstg -65 175 °C 2
Thermal resistance junction to ambient air RthA 0.3 K/mW 2

CAD (KiCad official)

  • Symbol: ZMM5230B
  • 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 eb00a46ecb047a44, 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