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BZT52C27S-WP
Public Made by Adomby adom
SY(顺烨) Zener Diodes, SOD-323. 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
markdownBZT52C27S-WP
SY(顺烨) · Zener Diodes · SOD-323
BZT52C27S-WP from SY(顺烨), in a SOD-323. 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 by the cathode bar on the body; zener voltage VZ is 27 V nominal (25.1 V to 28.9 V) at IZT = 5 mA. |
| 2 | A | passive | Anode, the end opposite the cathode bar; maximum power dissipation is 300 mW per the features list. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SY(顺烨) |
| Package | SOD-323 |
| 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 (nominal 27 V) | VZ | 25.1 | 27 | 28.9 | V | @ IZT = 5.0 mA; pulses tp = 5 ms (Note 3) | 2 |
| Zener voltage tolerance (standard, nominal ±5%) | -5 | 5 | % | Standard tolerance on nominal zener voltage (Note 1) | 2 | ||
| Temperature coefficient of zener voltage | 8 | 10 | mV/°C | @ IZT = 5.0 mA | 2 | ||
| Maximum zener impedance | ZZT | 80 | Ω | @ IZT = 5.0 mA; f = 1 kHz (Note 4) | 2 | ||
| Maximum zener impedance (knee) | ZZK | 250 | Ω | @ IZK = 1.0 mA; f = 1 kHz (Note 4) | 2 | ||
| Max reverse leakage current | IR | 0.1 | µA | @ VR = 20 V | 2 | ||
| Power dissipation | Pd | 20 | mW | Note 1 (PCB mounted with 2.0" x 2.0" copper pads) | 1 | ||
| Junction temperature | Tj | 150 | °C | 1 | |||
| Storage temperature range | Tstg | -55 | 150 | °C | 1 | ||
| Typical thermal resistance, junction to ambient | RθJA | 17 | /W | Note 1 (PCB mounted with 2.0" x 2.0" copper pads) | 1 |
CAD (KiCad official)
- Symbol:
BZT52C27S-WP - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
bzt52c27s-wp-etched.step/bzt52c27s-wp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52c27s-wp.step/bzt52c27s-wp.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SY(顺烨) datasheet (4 pp, sha256
8a92e860bf19aff0, retrieved 2026-10-31, 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).