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BZX58550-C2V7X

Public Made by Adom

by adom

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

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BZX58550-C2V7X

Nexperia · Zener Diodes · SOD-523

BZX58550-C2V7X from Nexperia, in a SOD-523. 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 voltage regulator diode, identified by the marking bar on the package.
2 A passive Anode of the voltage regulator diode.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOD-523
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 2.565 2.835 V IZ = 50 µA, Tj = 25 °C 4
Differential resistance rdiff 600 Ω IZ = 1 mA, Tj = 25 °C 4
Differential resistance rdiff 100 Ω IZ = 5 mA, Tj = 25 °C 4
Reverse current IR 1 µA VR = 1.0 V, Tj = 25 °C 4
Temperature coefficient SZ -3.5 0 mV/K IZ = 5 mA 4
Diode capacitance Cd 190 pF f = 1 MHz; VR = 0 V 4
Forward voltage VF 0.9 V IF = 10 mA; pulse test tp ≤ 300 µs; δ ≤ 0.02 4
Forward current IF 200 mA 3
Non-repetitive peak reverse power dissipation PZSM 40 W tp = 100 µs; square wave; Tj = 25 °C prior to surge 3
Total power dissipation Ptot 300 mW Tamb ≤ 25 °C; FR4 PCB, approx. 35 mm2 Cu at cathode tab 3
Junction temperature Tj 150 °C 3
Ambient temperature Tamb -55 150 °C 3
Storage temperature Tstg -65 150 °C 3
Thermal resistance from junction to ambient Rth(j-a) 350 K/W in free air; FR4 PCB, approx. 35 mm2 Cu at cathode tab 3
Thermal resistance from junction to solder point Rth(j-sp) 65 K/W soldering point of cathode tab 3
Nominal Zener voltage tolerance -5 5 % Tolerance series approximately ±5 % 1

CAD (KiCad official)

  • Symbol: BZX58550-C2V7X
  • Footprint: Diode_SMD:D_SOD-523
  • 3D model: SOD-523 (KiCad packages3D, STEP)
  • 3D model files: bzx58550-c2v7x-etched.step / bzx58550-c2v7x-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzx58550-c2v7x.step / bzx58550-c2v7x.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (10 pp, sha256 ccce07a1e6449d86, retrieved 2026-10-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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