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BZT52B5V1Q
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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
markdownBZT52B5V1Q
Yangzhou Yangjie Elec Tech · Zener Diodes · SOD-123
BZT52B5V1Q 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 SOD123 body; the Zener (BZT52B5V1Q: Vz 5.1V typ at 5mA) regulates with this pin positive relative to the anode. |
| 2 | A | passive | Anode of the Zener diode; forward voltage is max 0.9V at IF=10mA. |
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 | Vz | 5 | 5.1 | 5.2 | V | at Izt = 5 mA | 2 |
| Zener Test Current | Izt | 5 | mA | 2 | |||
| Dynamic Impedance | Zzt | 60 | Ω | at Izt = 5 mA | 2 | ||
| Knee Dynamic Impedance | Zzk | 480 | Ω | at Izk = 1.0 mA | 2 | ||
| Reverse Current | IR | 2 | μA | at VR = 2.0 V | 2 | ||
| Typical Temperature Coefficient | -2.7 | 1.2 | mV/℃ | at IZTC = 5 mA | 2 | ||
| Power Dissipation | PD | 500 | mW | Ta=25℃ | 1 | ||
| Storage Temperature Range | Tstg | -55 | 150 | °C | 1 | ||
| Junction Temperature | TJ | -55 | 150 | °C | 1 | ||
| Maximum Forward Voltage | VF | 0.9 | V | IF=10mAdc | 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:
BZT52B5V1Q - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
bzt52b5v1q-etched.step/bzt52b5v1q-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52b5v1q.step/bzt52b5v1q.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
e05faf33ee6dce2f, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-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).