component
BZT52C20W
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CBI Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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BZT52C20W
CBI · Zener Diodes · SOD-123
BZT52C20W 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; for the BZT52C20W the Zener voltage is 18.8...21.2 V (nominal 20 V) at IZT = 5 mA. |
| 2 | Anode | passive | Anode of the Zener diode; forward voltage is max. 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 | 55 | Ω | IZT = 5 mA | 2 | ||
| Dynamic Impedance | ZZK | 225 | Ω | IZK = 1 mA | 2 | ||
| Reverse Leakage Current | IR | 0.1 | μA | VR = 14 V | 2 | ||
| Forward Voltage | VF | 0.9 | V | IF = 10 mA | 1 | ||
| Thermal Resistance Junction to Ambient Air | RthA | 340 | °C/W | Ta = 25 °C | 1 | ||
| Power Dissipation | Ptot | 500 | mW | Ta = 25 °C | 1 | ||
| Junction Temperature | TJ | 150 | °C | Ta = 25 °C | 1 | ||
| Storage Temperature Range | TStg | -65 | 150 | °C | Ta = 25 °C | 1 |
CAD (KiCad official)
- Symbol:
BZT52C20W - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
bzt52c20w-etched.step/bzt52c20w-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52c20w.step/bzt52c20w.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: CBI datasheet (3 pp, sha256
de2c9ae1a3f97b6e, retrieved 2026-10-23, 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).
# BZT52C20W
**CBI** · Zener Diodes · SOD-123
BZT52C20W 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; for the BZT52C20W the Zener voltage is 18.8...21.2 V (nominal 20 V) at IZT = 5 mA. |
| 2 | Anode | passive | Anode of the Zener diode; forward voltage is max. 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 | | | 55 | Ω | IZT = 5 mA | 2 |
| Dynamic Impedance | ZZK | | | 225 | Ω | IZK = 1 mA | 2 |
| Reverse Leakage Current | IR | | | 0.1 | μA | VR = 14 V | 2 |
| Forward Voltage | VF | | | 0.9 | V | IF = 10 mA | 1 |
| Thermal Resistance Junction to Ambient Air | RthA | | | 340 | °C/W | Ta = 25 °C | 1 |
| Power Dissipation | Ptot | | | 500 | mW | Ta = 25 °C | 1 |
| Junction Temperature | TJ | | | 150 | °C | Ta = 25 °C | 1 |
| Storage Temperature Range | TStg | -65 | | 150 | °C | Ta = 25 °C | 1 |
## CAD (KiCad official)
- Symbol: `BZT52C20W`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files: `bzt52c20w-etched.step` / `bzt52c20w-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bzt52c20w.step` / `bzt52c20w.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [CBI datasheet](docs/bzt52c20w-datasheet.pdf) (3 pp, sha256 `de2c9ae1a3f97b6e`, 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](docs/bzt52c20w-datasheet.pdf)