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MM1ZB30

Public Made by Adom

by adom

ST Semtech Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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MM1ZB30

ST Semtech · Zener Diodes · SOD-123

MM1ZB30 from ST Semtech, in a SOD-123. 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 Cathode passive Zener diode cathode, identified on the package by the cathode line marking; the datasheet gives no pin-specific electrical limits.
2 Anode passive Zener diode anode; the datasheet gives no pin-specific electrical limits.

Key specifications

Parameter Value
Manufacturer ST Semtech
Package SOD-123
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) VZT 29.4 30 30.6 V IZT = 5 mA; VZ tested with pulses (20 ms) 2
Zener voltage tolerance -2 2 % Zener Voltage Tolerance ±2% (Features) 1
Dynamic impedance (ZZT) ZZT 80 Ω IZ = 2 mA 2
Reverse leakage current (IR) IR 0.1 µA VR = 23 V 2
Power dissipation (Ptot) Ptot 500 mW TL = 75℃; FR-4 PCB = 89 * 38 mm 1
Junction temperature (Tj) Tj 150 ℃ 1
Storage temperature range (Tstg) Tstg -55 150 ℃ 1
Thermal resistance junction to ambient (RθJA) RθJA 340 ℃/W Mounted on FR-4 PCB 38 * 38 * 1.6 mm with single-sided Cu pad areas 25mm2 (>70 µm thick) 1
Thermal resistance junction to lead (RθJL) RθJL 150 ℃/W Mounted on FR-4 PCB 38 * 38 * 1.6 mm with single-sided Cu pad areas 25mm2 (>70 µm thick) 1
Forward voltage (VF) VF 0.9 V IF = 10 mA 1

CAD (KiCad official)

  • Symbol: MM1ZB30
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: mm1zb30-etched.step / mm1zb30-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mm1zb30.step / mm1zb30.glb are the bare package body.

Provenance

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

  • Datasheet: ST Semtech datasheet (4 pp, sha256 18a1e443958092d1, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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