component

BZT52C43SQ

Public Made by Adom

by adom

JSMSEMI Zener Diodes, SOD-323. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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bzt52c43sq-etched.step bzt52c43sq: factory component page (tier=lcsc) · Ray 4d ago
bzt52c43sq-hero.glb bzt52c43sq: hero GLB from the etched model (keeps the MPN mark) · Ray 4d ago
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bzt52c43sq.glb Publish 0.1.0 · Ray 4d ago
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bzt52c43sq.lbr Publish 0.1.0 · Ray 4d ago
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BZT52C43SQ

JSMSEMI · Zener Diodes · SOD-323

BZT52C43SQ from JSMSEMI, in a SOD-323. 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 JSMSEMI
Package SOD-323
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 VZ 40.85 43 45.15 V @ IZT = 2 mA 2
Maximum Zener Impedance ZZT 100 Ω @ IZT = 2 mA 2
Maximum Zener Impedance (knee) ZZK 700 Ω @ IZK = 1.0 mA 2
Temperature Coefficient of Zener Voltage TC 10 12 mV/°C @ IZT = 2 mA 2
Maximum Reverse Current IR 0.1 µA @ VR = 32.0 V 2
Zener Voltage Tolerance -5 5 % C-series 1
Forward Voltage VF 0.9 V IF=10mA, TA = 25°C 1
Power Dissipation PC 200 mW TA = 25°C 1
Junction Temperature Range TJ -55 150 °C TA = 25°C 1
Storage Temperature Range TSTG -65 150 °C TA = 25°C 1
Thermal Resistance (Junction-to-Ambient) RθJA 625 °C/W TA = 25°C 1
Thermal Resistance (Junction-to-Case) RθJC 337 °C/W TA = 25°C 1

CAD (KiCad official)

  • Symbol: BZT52C43SQ
  • Footprint: Diode_SMD:D_SOD-323
  • 3D model: SOD-323 (KiCad packages3D, STEP)
  • 3D model files: bzt52c43sq-etched.step / bzt52c43sq-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bzt52c43sq.step / bzt52c43sq.glb are the bare package body.

Provenance

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

  • Datasheet: JSMSEMI datasheet (4 pp, sha256 9b78d9bf57eaf185, retrieved 2026-10-22, tier: lcsc)
  • 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