component

BZX585-B24

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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viewers bzx585-b24: symbol repaired (D_Zener, cathode pad 1) · Ray
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bzx585-b24-etched.step bzx585-b24: factory component page (tier=mfr) · Ray
bzx585-b24-hero.glb bzx585-b24: hero GLB from the etched model (keeps the MPN mark) · Ray
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bzx585-b24.kicad_sym bzx585-b24: symbol repaired (D_Zener, cathode pad 1) · Ray
bzx585-b24.lbr bzx585-b24: symbol repaired (D_Zener, cathode pad 1) · Ray
bzx585-b24.step Publish 0.1.0 · Ray
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BZX585-B24

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

BZX585-B24 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; the marking bar on the package indicates the cathode.
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 tolerance (B series) -2 2 % 5
Working voltage VZ min/max (B24) VZ 23.52 24.48 V 5
Nominal working voltage VZ 24 V 2
Differential resistance rdiff at IZ = 5 mA rdiff 60 250 Ω IZ = 5 mA 5
Differential resistance rdiff at IZ = 1 mA rdiff 25 70 Ω IZ = 1 mA 5
Temperature coefficient SZ SZ 18.4 20.4 22 mV/K IZ = 5 mA 5
Reverse current IR IR 0.05 µA IZ = 5 mA; VR = 16.8 V 5
Diode capacitance Cd Cd 55 pF f = 1 MHz; VR = 0 V 5
Non-repetitive peak reverse current IZSM IZSM 1.25 A tp = 100 µs; square wave; Tj = 25 °C before surge 5
Forward voltage VF at IF = 10 mA VF 0.9 V IF = 10 mA; pulse test tp ≤ 300 µs; δ ≤ 0.02 4
Forward voltage VF at IF = 100 mA VF 1.1 V IF = 100 mA; pulse test tp ≤ 300 µs; δ ≤ 0.02 4
Forward current IF IF 200 mA 3
Non-repetitive peak reverse power dissipation PZSM PZSM 40 W tp = 100 µs; square wave; Tamb = 25 °C; prior to surge 3
Total power dissipation Ptot Ptot 300 mW Tamb = 25 °C; device mounted on FR4 PCB, approx. 35 mm² Cu at cathode tab 3
Junction temperature Tj Tj -65 150 °C 3
Ambient temperature Tamb Tamb -65 150 °C 3
Storage temperature Tstg Tstg -65 150 °C 3
Thermal resistance junction to ambient Rth(j-a) 350 K/W in free air; device mounted on FR4 PCB, approx. 35 mm² Cu at cathode tab 3
Thermal resistance junction to solder point Rth(j-sp) 65 K/W soldering point of cathode tab 3

CAD (KiCad official)

  • Symbol: BZX585-B24
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523(SC-79) (KiCad packages3D, STEP)
  • 3D model files: bzx585-b24-etched.step / bzx585-b24-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzx585-b24.step / bzx585-b24.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 2026-10-28, tier: manufacturer)
  • 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