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Contents

README

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AZ5123-01H

UMW · ESD And Surge Protection (TVS/ESD) · SOD-523

AZ5123-01H from UMW, in a SOD-523. 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 1 passive Terminal 1 of an unpolarised bidirectional ESD/TVS diode; either orientation.
2 2 passive Terminal 2 of an unpolarised bidirectional ESD/TVS diode; either orientation.

Key specifications

Parameter Value
Manufacturer UMW
Package SOD-523
Category Circuit Protection
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
Peak pulse power (tp=8/20us)@25°C PPK 50 W tp=8/20us @25°C 2
Peak pulse current (tp=8/20us)@25°C IPP 8 A tp=8/20us @25°C 2
ESD (IEC61000-4-2 air discharge) @25°C VESD -25 25 kV IEC61000-4-2 air discharge @25°C 2
ESD (IEC61000-4-2 contact discharge) @25°C VESD -25 25 kV IEC61000-4-2 contact discharge @25°C 2
Junction temperature TJ 150 °C 2
Operating temperature TOP -40 125 °C 2
Storage temperature TSTG -55 150 °C 2
Lead temperature TL 260 °C 2
Reverse Stand-off Voltage VRWM 3.3 V 3
Reverse Leakage Current IR 1 µA VRWM=3.3V 3
Reverse Breakdown Voltage (breakdown voltage at IT) VBR 3.8 6 V IT=1mA 3
Clamping Voltage VC 10 V IPP=1A(8 x 20µs pulse) 3
Clamping Voltage VC 15 V IPP=8A(8 x 20µs pulse) 3
Junction Capacitance CJ 12 pF VR=0V, f=1MHz, I/O to GND 1

CAD (KiCad official)

  • Symbol: AZ5123-01H
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: az5123-01h-etched.step / az5123-01h-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); az5123-01h.step / az5123-01h.glb are the bare package body.

Provenance

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

  • Datasheet: UMW datasheet (7 pp, sha256 b89cb296128e2947, retrieved 2026-10-15, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal 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