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BZT52C47-E3-08
Public Made by Adomby adom
Vishay Intertech 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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README
markdownBZT52C47-E3-08
Vishay Intertech · Zener Diodes · SOD-123
BZT52C47-E3-08 from Vishay Intertech, 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 with cathode bar); Zener voltage of BZT52C47 is 47 V nominal (44.65 to 49.35 V) at IZT1 = 5 mA, with the cathode positive in the Zener (reverse) direction. |
| 2 | A | passive | Anode; the device is a single Zener diode with Ptot of 500 mW (RthJL = 250 K/W) and a junction temperature of up to 150 °C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| 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 | 44.65 | 47 | 49.35 | V | at IZT1 = 2 mA, pulses tp = 5 ms | 2 |
| Reverse voltage | VR | 35 | V | at IR | 2 | ||
| Reverse current | IR | 100 | nA | at VR | 2 | ||
| Dynamic resistance | ZZ | 97 | Ω | at IZT1 | 2 | ||
| Dynamic resistance (knee) | ZZK | 375 | Ω | at IZT2 | 2 | ||
| Temperature coefficient of Zener voltage | αVZ | 8 | 12 | 10-4/°C | 2 | ||
| Admissible Zener current | IZ | 8 | mA | Tamb = 45 °C | 2 | ||
| Admissible Zener current | IZ | 9 | mA | Tamb = 25 °C | 2 | ||
| Zener voltage tolerance | -5 | 5 | % | C suffix | 1 | ||
| Power dissipation | Ptot | 500 | mW | RthJL = 250 K/W | 1 | ||
| Power dissipation | Ptot | 300 | mW | On FR-4 board with recommended soldering footprint | 1 | ||
| Junction temperature | Tj | 150 | °C | 1 | |||
| Storage temperature range | Tstg | -65 | 150 | °C | 1 | ||
| Operating temperature range | Top | -55 | 150 | °C | 1 | ||
| Thermal resistance junction to lead | RthJL | 250 | K/W | 1 | |||
| Thermal resistance junction to ambient | RthJA | 420 | K/W | According to JEDEC 51-3 on FR-4 board with recommended soldering footprint | 1 |
CAD (KiCad official)
- Symbol:
BZT52C47-E3-08 - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
bzt52c47-e3-08-etched.step/bzt52c47-e3-08-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bzt52c47-e3-08.step/bzt52c47-e3-08.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (7 pp, sha256
88fbcb2f1d090d42, retrieved 2026-10-22, tier: manufacturer) - 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).