component
BZT52C39W
Public Made by Adomby adom
CBI 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
markdownBZT52C39W
CBI · Zener Diodes · SOD-123
BZT52C39W from CBI, 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 | Cathode of the Zener diode (pin 1 in the SOD-123 pinning), with nominal Zener voltage 39 V (range 37 to 41 V) tested at IZT 2 mA. |
| 2 | Anode | passive | Anode of the Zener diode (pin 2 in the SOD-123 pinning), opposite the cathode, with forward voltage VF of 0.9 V at IF 10 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | CBI |
| 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 |
|---|---|---|---|---|---|---|---|
| Dynamic impedance | ZZT | 130 | Ω | IZT = 2 mA | 2 | ||
| Dynamic impedance | ZZK | 350 | Ω | IZK = 0.5 mA | 2 | ||
| Reverse leakage current | IR | 0.1 | μA | VR = 27.3 V | 2 | ||
| Power dissipation | Ptot | 500 | mW | Ta = 25 °C | 1 | ||
| Junction temperature | TJ | 150 | °C | 1 | |||
| Storage temperature range | TStg | -65 | 150 | °C | 1 | ||
| Thermal resistance junction to ambient air | RthA | 340 | °C/W | 1 | |||
| Forward voltage | VF | 0.9 | V | IF = 10 mA | 1 |
CAD (KiCad official)
- Symbol:
BZT52C39W - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
bzt52c39w-etched.step/bzt52c39w-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52c39w.step/bzt52c39w.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: CBI datasheet (3 pp, sha256
de2c9ae1a3f97b6e, retrieved 2026-10-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusoff(skipped (clean text read)), 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).