component
BZT52C20T1G
Public Made by Adomby adom
MOT 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
markdownBZT52C20T1G
MOT · Zener Diodes · SOD-123
BZT52C20T1G from MOT, 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 of the 20 V nominal (19.0 to 21.0 V at IZ=5mA) zener diode; marked by the cathode band, with VZ regulation when reverse biased. |
| 2 | A | passive | Anode of the zener diode; forward voltage is 0.85 V at IF=10mA and total power dissipation is 500 mW. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MOT |
| 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 (BZT52C20T1G, marking WM) | VZ | 19 | 20 | 21 | V | IZ=5mA | 2 |
| Typical temperature coefficient | 14.4 | 18 | mV/℃ | IZ=5mA | 2 | ||
| Forward voltage | VF | 0.85 | V | IF=10mA, Tamb=25℃ | 1 | ||
| Total power dissipation | PD | 500 | mW | Tamb=25℃ | 1 | ||
| Thermal resistance, junction to ambient | RθJA | 556 | ℃/W | 1 | |||
| Thermal resistance, junction to ambient | RθJA | 417 | ℃/W | 1 | |||
| Maximum operating junction temperature | Tj | 150 | ℃ | 1 | |||
| Storage temperature | Tstg | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
BZT52C20T1G - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
bzt52c20t1g-etched.step/bzt52c20t1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52c20t1g.step/bzt52c20t1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MOT datasheet (5 pp, sha256
7f647f3c8e84fff3, retrieved 2026-10-17, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).