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BZX84C12A

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Shandong Jingdao Microelectronics Zener Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BZX84C12A

Shandong Jingdao Microelectronics · Zener Diodes · SOT-23

BZX84C12A from Shandong Jingdao Microelectronics, in a SOT-23. 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 of the single zener diode (Suffix A); the datasheet gives forward voltage VF 0.9 V at IF = 10 mA.
2 NC unconnected No internal connection in the single-diode Suffix A device; the diagram shows no diode connected to pin 2.
3 K passive Cathode of the single zener diode (Suffix A); the BZX84C12A zener voltage is 12 V nominal (11.4 V min to 12.7 V max at IZT 5 mA), with Ptot max 350 mW.

Key specifications

Parameter Value
Manufacturer Shandong Jingdao Microelectronics
Package SOT-23
Category Diodes
Pins 3

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 range (min) VZT 11.4 12 12.7 V at IZT; VZT tested with pulses (20 ms) 3
Dynamic impedance ZZT 35 Ω at IZT 3
Reverse current IR 0.1 μA at VR 3
Zener voltage tolerance (C grade, ±5%) -5 5 % BZX84C series, C suffix: ±5% 3
Total power dissipation Ptot 350 mW 1
Operating and storage temperature range Tj, Tstg -55 150 °C 1
Forward voltage VF 0.9 V IF = 10mA 1

CAD (KiCad official)

  • Symbol: BZX84C12A
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bzx84c12a-etched.step / bzx84c12a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzx84c12a.step / bzx84c12a.glb are the bare package body.

Provenance

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

  • Datasheet: Shandong Jingdao Microelectronics datasheet (4 pp, sha256 71856399c0692886, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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