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BZG03C33

YONGYUTAI · Zener Diodes · SMA(DO-214AC)

BZG03C33 from YONGYUTAI, in a SMA(DO-214AC). 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 YONGYUTAI
Package SMA(DO-214AC)
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 31 33 35 V 2
Dynamic resistance rzj 8 15 Ω 2
Temperature coefficient of Zener voltage TKVZ 0.06 0.11 %/K 2
Test current (column after TKVZ) IZ 25 mA 2
Reverse current IR 1 uA at VR = 24 V 2
Reverse voltage VR 24 V for IR 2
Forward voltage VF 1.2 V IF=0.5A, Tj=25℃ 1
Power dissipation PV 3 W RthJA<25K/W, Tamb=100℃ 1
Power dissipation PV 1.25 W RthJA<100K/W, Tamb=50℃ 1
Non repetitive peak surge power dissipation PZSM 600 W tp=100us sq.pulse, Tj=25℃ prior to surge 1
Junction temperature Tj 175 ℃ 1
Storage temperature range Tstg -65 150 ℃ 1
Thermal resistance junction lead RthJL 25 K/W Tj = 25℃ 1
Thermal resistance junction ambient RthJA 150 K/W mounted on epoxy-glass hard tissue, Fig. 1a 1
Thermal resistance junction ambient RthJA 125 K/W mounted on epoxy-glass hard tissue, Fig. 1b 1
Thermal resistance junction ambient RthJA 100 K/W mounted on Al-oxid-ceramic (Al2O3), Fig. 1b 1

CAD (KiCad official)

  • Symbol: BZG03C33
  • Footprint: Diode_SMD:D_SMA
  • 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
  • 3D model files: bzg03c33-etched.step / bzg03c33-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzg03c33.step / bzg03c33.glb are the bare package body.

Provenance

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

  • Datasheet: YONGYUTAI datasheet (3 pp, sha256 ca9951a3eb9b6e6e, retrieved 2026-10-22, 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