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Contents

README

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BZX84-B4V3

Nexperia · Zener Diodes · SOT-23(TO-236AB)

BZX84-B4V3 from Nexperia, in a SOT-23(TO-236AB). 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 A passive Anode terminal of the voltage regulator diode; the datasheet gives no pin-specific limit, only the device limits such as IF 200 mA and Ptot 250 mW.
2 n.c. unconnected Pin is not connected and has no electrical function in this package.
3 K passive Cathode terminal of the voltage regulator diode; the datasheet identifies the cathode tab as the solder point used for the junction-to-solder-point thermal resistance.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOT-23(TO-236AB)
Category Diodes
Pins 3

CAD (KiCad official)

  • Symbol: BZX84-B4V3
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23(TO-236AB) (KiCad packages3D, STEP)
  • 3D model files: bzx84-b4v3-etched.step / bzx84-b4v3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzx84-b4v3.step / bzx84-b4v3.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (14 pp, sha256 e6278027e055c1b0, retrieved 2026-10-12, 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