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BZT52C43T1G

MOT · Zener Diodes · SOD-123

BZT52C43T1G from MOT, in a SOD-123. 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 banded/marked end per the datasheet; pad 1 of the KiCad diode footprint.
2 A passive Anode.

Key specifications

Parameter Value
Manufacturer MOT
Package SOD-123
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
Zener voltage (MIN) VZ 40.85 43 45.15 V IZ=2mA 3
Typical temperature coefficient 37.6 46.6 mV/℃ IZ=2mA 3
Storage temperature Tstg -55 150 ℃ 1
Maximum junction temperature Tj 150 ℃ 1
Total power dissipation PD 500 mW 1
Forward voltage VF 0.85 V IF=10mA 1
Dynamic impedance ZZ at IZ=0.5mA ZZ 370 Ω IZ=0.5mA 3
Dynamic impedance ZZ at IZ=2mA ZZ 145 Ω IZ=2mA 3
Dynamic impedance ZZ at IZ=10mA ZZ 78 Ω IZ=10mA 3
Reverse leakage current IR 0.04 uA VR=30 V 3
Thermal resistance, junction to ambient (first listed value) RθJA 556 ℃/W 1
Thermal resistance, junction to ambient (second listed value) RθJA 417 ℃/W 1

CAD (KiCad official)

  • Symbol: BZT52C43T1G
  • Footprint: Diode_SMD:D_SOD-123F
  • 3D model: SOD-123 (KiCad packages3D, STEP)
  • 3D model files: bzt52c43t1g-etched.step / bzt52c43t1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52c43t1g.step / bzt52c43t1g.glb are the bare package body.

Provenance

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

  • Datasheet: MOT datasheet (5 pp, sha256 7f647f3c8e84fff3, retrieved 2026-10-19, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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