component
AD-BZT52C39
Public Made by Adomby adom
Changjing Zener Diodes, SOD-123. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, 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
markdownAD-BZT52C39
Changjing · Zener Diodes · SOD-123
AD-BZT52C39 from Changjing, 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 banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| 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 | 37 | V | @ IZT = 2 mA | 2 | ||
| Zener voltage (nominal) | VZ | 39 | V | @ IZT = 2 mA | 2 | ||
| Zener voltage (max) | VZ | 41 | V | @ IZT = 2 mA | 2 | ||
| Maximum Zener impedance | ZZT | 130 | Ω | @ IZT = 2 mA | 2 | ||
| Maximum Zener impedance (knee) | ZZK | 350 | Ω | @ IZK = 0.5 mA | 2 | ||
| Maximum reverse current | IR | 0.1 | µA | @ VR = 27.3 V | 2 | ||
| Temperature coefficient of Zener voltage (min) | 33.4 | mV/°C | @ IZT = 5mA | 2 | |||
| Temperature coefficient of Zener voltage (max) | 41.2 | mV/°C | @ IZT = 5mA | 2 | |||
| Forward voltage | VF | 0.9 | V | @ IF = 10mA | 1 | ||
| Power dissipation | PD | 500 | mW | mounted on 1 inch2 FR-4 board, still air, Ta = 25°C | 1 | ||
| Thermal resistance junction to ambient | RθJA | 250 | °C/W | mounted on 1 inch2 FR-4 board, still air, Ta = 25°C | 1 | ||
| Operating junction and storage temperature range (min) | Tj, Tstg | -55 | °C | 1 | |||
| Operating junction and storage temperature range (max) | Tj, Tstg | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
AD-BZT52C39 - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
ad-bzt52c39-etched.step/ad-bzt52c39-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad-bzt52c39.step/ad-bzt52c39.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (6 pp, sha256
e735c67e2e48897b, retrieved 2026-10-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).