component
BZX84B20
Public Made by Adomby adom
Yangzhou Yangjie Elec Tech Zener Diodes, SOT-23(TO-236). 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
markdownBZX84B20
Yangzhou Yangjie Elec Tech · Zener Diodes · SOT-23(TO-236)
BZX84B20 from Yangzhou Yangjie Elec Tech, in a SOT-23(TO-236). 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 | A | passive | Anode of the Zener diode as drawn in the SOT-23 internal schematic on page 1; the 20V (19.6-20.4V at IZT=5mA) Zener voltage is measured between this pin and pin 3. |
| 2 | NC | unconnected | Pin 2 is shown in the internal schematic with no connection to the diode, so it is a no-connect pin. |
| 3 | K | passive | Cathode of the Zener diode as drawn in the SOT-23 internal schematic on page 1; it is taken positive relative to pin 1 for Zener (reverse) operation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | SOT-23(TO-236) |
| Category | Diodes |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
BZX84B20 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23(TO-236) (KiCad packages3D, STEP)
- 3D model files:
bzx84b20-etched.step/bzx84b20-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzx84b20.step/bzx84b20.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (5 pp, sha256
81a9a86e22a71f29, retrieved 2026-10-13, tier: lcsc) - 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).