component
BZT52B22
Public Made by Adomby adom
Slkor SLKORMICRO Elec Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownBZT52B22
Slkor SLKORMICRO Elec · Zener Diodes · SOD-123
BZT52B22 from Slkor SLKORMICRO Elec, 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, marked "-" on the datasheet drawing and identified by the band on the package body; takes the positive reverse voltage in Zener operation (VZ 21.56-22.44 V at IZT = 5 mA for BZT52B22). |
| 2 | A | passive | Anode, marked "+" on the datasheet drawing at the end opposite the cathode band; forward voltage VF is 0.9 V at IF = 10 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Slkor SLKORMICRO Elec |
| 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 | VZ | 21.56 | 22 | 22.44 | V | @ IZT = 5 mA | 2 |
| Maximum Zener impedance | ZZT | 55 | Ω | @ IZT = 5 mA, f = 1kHz | 2 | ||
| Maximum Zener impedance (knee) | ZZK | 250 | Ω | @ IZK = 1.0 mA, f = 1kHz | 2 | ||
| Maximum reverse current | IR | 0.1 | μA | @ VR = 15.4 V | 2 | ||
| Typical temperature coefficient | θVZ | 16.4 | 20 | mV/°C | @ IZTC = 5 mA | 2 | |
| Power dissipation | Pd | 350 | mW | Mounted on ceramic PCB (Note 1) | 1 | ||
| Forward voltage | VF | 0.9 | V | @ IF = 10 mA (Note 2) | 1 | ||
| Thermal resistance, junction to ambient | RθJA | 357 | /W | Junction to ambient | 1 | ||
| Junction temperature | Tj | 150 | ℃ | 1 | |||
| Storage temperature range | Tstg | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
BZT52B22 - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
bzt52b22-etched.step/bzt52b22-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52b22.step/bzt52b22.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Slkor SLKORMICRO Elec datasheet (4 pp, sha256
03de03b9091f028e, retrieved 2026-10-17, 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).