component
BZX84C22
Public Made by Adomby adom
MDD（Microdiode Electronics） Zener Diodes, SOT-23. 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
markdownBZX84C22
MDD（Microdiode Electronics） · Zener Diodes · SOT-23
BZX84C22 from MDD（Microdiode Electronics）, in a SOT-23. 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; the page 1 symbol shows the diode arrow pointing from pin 1 toward pin 3. |
| 2 | NC | unconnected | No connection; the page 1 symbol draws pin 2 as an open terminal with no link to the diode. |
| 3 | K | passive | Cathode of the Zener diode; for BZX84C22, VZ is 22 V nominal (20.8 to 23.3 V) at IZT = 5 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MDD（Microdiode Electronics） |
| Package | SOT-23 |
| Category | Diodes |
| Pins | 3 |
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 (nominal 22 V) | VZ | 20.8 | 22 | 23.3 | V | @ IZT=5mA | 2 |
| Maximum Zener impedance | ZZT | 55 | Ω | @ IZT=5mA | 2 | ||
| Maximum Zener impedance (knee) | ZZK | 250 | Ω | @ IZK=1.0mA | 2 | ||
| Maximum reverse current | IR | 0.1 | μA | @ VR=15.4V | 2 | ||
| Temperature coefficient of Zener voltage | θVZ | 16.4 | 20 | mV/°C | @ IZT=5mA | 2 | |
| Power dissipation | Pd | 300 | mW | Ta=25℃ | 1 | ||
| Forward voltage | VF | 0.9 | V | @ IF=10mA | 1 | ||
| Storage temperature range | Tstg | -55 | 150 | ℃ | 1 | ||
| Typical thermal resistance junction to ambient | RθJA | 417 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
BZX84C22 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bzx84c22-etched.step/bzx84c22-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzx84c22.step/bzx84c22.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MDD（Microdiode Electronics） datasheet (4 pp, sha256
3d635e38949567f6, retrieved 2026-11-04, 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).