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BZT52C43Q
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Yangzhou Yangjie Elec Tech 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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Contents
README
markdownBZT52C43Q
Yangzhou Yangjie Elec Tech · Zener Diodes · SOD-123
BZT52C43Q from Yangzhou Yangjie Elec Tech, 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, the end marked by the cathode line on the body; the Zener is reverse-biased with this pin positive, with VZ 40 V min, 43 V typ, 46 V max at IZT = 2 mA. |
| 2 | A | passive | Anode, the end opposite the cathode line; maximum forward voltage is 0.9 V at IF = 10 mA and power dissipation is 500 mW. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| 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 (min) | Vz | 40 | 43 | 46 | V | IZT = 2 mA | 2 |
| Zener dynamic impedance | Zzt | 100 | Ω | IZT = 2 mA | 2 | ||
| Zener dynamic impedance at knee | Zzk | 700 | Ω | IZK = 0.5 mA | 2 | ||
| Reverse leakage current | IR | 0.1 | μA | VR = 32 V | 2 | ||
| Typical temperature coefficient at IZTC | 37.6 | 50.6 | mV/℃ | IZTC = 2 mA | 2 | ||
| Power dissipation (family rating) | PD | 500 | mW | 1 | |||
| Maximum forward voltage | VF | 0.9 | V | IF = 10 mAdc | 1 | ||
| Storage temperature range | Tstg | -55 | 150 | °C | 1 | ||
| Junction temperature | TJ | -55 | 150 | °C | 1 | ||
| Thermal resistance junction to ambient air | RθJA | 340 | °C/W | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | black | 4. Body color: Black | 5 | |
| contacts | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
BZT52C43Q - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
bzt52c43q-etched.step/bzt52c43q-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52c43q.step/bzt52c43q.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (6 pp, sha256
759bcecaeab3c6ce, retrieved 2026-10-18, 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).