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BZT52C33-E3-08

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Vishay Intertech 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.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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BZT52C33-E3-08

Vishay Intertech · Zener Diodes · SOD-123

BZT52C33-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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

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 VZ 31 33 35 V IZT1 = 5 mA; pulses tp = 5 ms 2
Reverse voltage VR at IR VR 25 V IR = 100 nA; printed as > 25 V 2
Dynamic resistance ZZ at IZT1 ZZ 40 80 Ω IZT1 = 5 mA; printed as 40 (< 80) 2
Dynamic resistance ZZK at IZT2 ZZK 250 Ω IZT2 = 1 mA; printed as < 250 2
Temperature coefficient of Zener voltage 8 10 10^-4/°C 2
Power dissipation Ptot Ptot 500 mW Diode on ceramic substrate 0.7 mm; 5 mm2 pad areas 1
Power dissipation Ptot Ptot 410 mW Diode on ceramic substrate 0.7 mm; 2.5 mm2 pad areas 1
Thermal resistance junction to ambient air RthJA 300 K/W Valid provided that electrodes are kept at ambient temperature 1
Junction temperature Tj 150 °C 1
Storage temperature range Tstg -65 150 °C 1
Operating temperature range Top -55 150 °C 1

CAD (KiCad official)

  • Symbol: BZT52C33-E3-08
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: bzt52c33-e3-08-etched.step / bzt52c33-e3-08-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52c33-e3-08.step / bzt52c33-e3-08.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Vishay Intertech datasheet (8 pp, sha256 5fabfd6f4404b037, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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).

Datasheet PDF