component
CZRW5231B-HF
Public Made by Adomby adom
Comchip Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCZRW5231B-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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);czrw5231b-hf.step/czrw5231b-hf.glbare 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, primaryclaude-sonnet-5-5(text), consensusclaude-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).