component

BZT55B4V3

Public Made by Adom

by adom

AnBon Zener Diodes, SOD-123. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BZT55B4V3

AnBon · Zener Diodes · SOD-123

BZT55B4V3 from AnBon, 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 Cathode passive Cathode of the BZT55B Zener diode, identified on the package by the cathode band (page 4 pinning: Pin1 cathode; page 1: polarity indicated by cathode band).
2 Anode passive Anode of the BZT55B Zener diode, the terminal opposite the cathode band (page 4 pinning: Pin2 anode).

Key specifications

Parameter Value
Manufacturer AnBon
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 VZT 4.21 4.3 4.39 V at IZT = 5 mA; VZT tested with pulses (20 ms) 2
Dynamic impedance ZZT 130 Ω at IZT = 5 mA 2
Reverse current IR 1 µA at VR = 1 V 2
Forward voltage VF 0.9 V @IF = 10mA 1
Total power dissipation PD 500 mW at TA=25°C, mounted on FR-5 board, note1 1
Storage temperature range TSTG -55 150 °C 1
Operating junction temperature range TJ -55 150 °C 1
Thermal resistance, junction to ambient, note1 RθJA 305 °C/W note1: device mounted on ceramic PCB; 7.6mm x 9.4mm x 0.87mm with pad area 25mm2 1
Thermal resistance, junction to case, note1 RθCJ 200 °C/W note1: device mounted on ceramic PCB; 7.6mm x 9.4mm x 0.87mm with pad area 25mm2 1

CAD (KiCad official)

  • Symbol: BZT55B4V3
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: bzt55b4v3-etched.step / bzt55b4v3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt55b4v3.step / bzt55b4v3.glb are the bare package body.

Provenance

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

  • Datasheet: AnBon datasheet (4 pp, sha256 848c1cbc10591389, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF