component

BZX585-B3V3

Public Made by Adom

by adom

Nexperia Zener Diodes, SOD-523(SC-79). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BZX585-B3V3

Nexperia · Zener Diodes · SOD-523(SC-79)

BZX585-B3V3 from Nexperia, in a SOD-523(SC-79). 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 of the Zener diode, indicated by the marking bar on the package.
2 A passive Anode of the Zener diode.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOD-523(SC-79)
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
Working voltage VZ 3.23 3.37 V Sel B 4
Temperature coefficient SZ -3.5 -1.8 0 mV/K IZ = 5 mA 4
Forward voltage VF 0.9 V IF = 10 mA; pulse test tp <= 300 us; duty <= 0.02 4
Forward voltage VF 1.1 V IF = 100 mA; pulse test tp <= 300 us; duty <= 0.02 4
Forward current IF 200 mA 3
Non-repetitive peak reverse power dissipation PZSM 40 W tp = 100 us; square wave; Tamb = 25 C; prior to surge 3
Total power dissipation Ptot 300 mW Tamb = 25 C; device mounted on FR4 PCB with approx. 35 mm2 Cu area at cathode tab 3
Junction temperature Tj -65 150 °C 3
Ambient temperature Tamb -65 150 °C 3
Storage temperature Tstg -65 150 °C 3
Thermal resistance from junction to ambient Rth(j-a) 350 K/W in free air; device mounted on FR4 PCB with approx. 35 mm2 Cu area at cathode tab 3
Thermal resistance from junction to solder point Rth(j-sp) 65 K/W soldering point of cathode tab 3

CAD (KiCad official)

  • Symbol: BZX585-B3V3
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523(SC-79) (KiCad packages3D, STEP)
  • 3D model files: bzx585-b3v3-etched.step / bzx585-b3v3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzx585-b3v3.step / bzx585-b3v3.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (13 pp, sha256 ce6f045443a822c0, retrieved 2026-10-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus off (skipped (clean text read)), 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