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CZRW5231B-HF

Public Made by Adom

by adom

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

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CZRW5231B-HF

Comchip · Zener Diodes · SOD-123

CZRW5231B-HF from Comchip, 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 K passive Cathode, marked by the cathode band on the SOD-123 package; the Zener voltage of CZRW5231B-HF is 5.1V nominal (4.85V min to 5.36V max) at IZT=20mA.
2 A passive Anode terminal of the Zener diode in the SOD-123 package, as shown in the two-terminal circuit diagram.

Key specifications

Parameter Value
Manufacturer Comchip
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 (min/max) VZ 4.85 5.1 5.36 V @IZT, Ta=25°C 2
Zener test current IZT 20 mA Ta=25°C 2
Operating resistance ZZT 17 Ohm @IZT 2
Rising operating resistance ZZK 1600 Ohm @IZK=0.25mA 2
Rising operating resistance test current IZK 0.25 mA 2
Reverse current IR 5 µA @VR=2.0V 2
Reverse voltage VR 2 V for IR 2
Forward voltage VF 0.9 V IF=10mA, Tp ≤ 1.0ms pulses 1
Power dissipation PD 350 mW Ta=25°C, device on ceramic PCB 7.6x9.4x0.87mm, pad 25mm² 1
Operating and storage temperature range TJ,TSTG -65 150 °C 1
Thermal resistance, junction to ambient air RθJA 357 °C/W Device mounted on ceramic PCB 1

CAD (KiCad official)

  • Symbol: CZRW5231B-HF
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: czrw5231b-hf-etched.step / czrw5231b-hf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); czrw5231b-hf.step / czrw5231b-hf.glb are the bare package body.

Provenance

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

  • Datasheet: Comchip datasheet (6 pp, sha256 b207e4d9b2bbcdd9, retrieved 2026-10-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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