component

BZX55C43

Public Made by Adom

by adom

LGE Zener Diodes, DO-35. Diode: pin 1 is the cathode (the banded end) by the KiCad diode-footprint convention, KiCad symbol/footprint/3D.

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Made with kicad-footprint-generator 10.0 · KiCad file format 20260206
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docs Publish 0.1.0 · Ray
viewers bzx55c43: symbol repaired (D_Zener, cathode pad 1) · Ray
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bzx55c43.kicad_sym bzx55c43: symbol repaired (D_Zener, cathode pad 1) · Ray
bzx55c43.lbr bzx55c43: symbol repaired (D_Zener, cathode pad 1) · Ray
bzx55c43.step Publish 0.1.0 · Ray
package.json Brief: a diode is polarised (pin 1 = cathode); the "Unpolarised two-terminal part" sentence was wrong · Ray
page.json brief: polarity sentence corrected · Ray
README.md Publish 0.1.0 · Ray

BZX55C43

LGE · Zener Diodes · DO-35

BZX55C43 from LGE, in a DO-35. 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 LGE
Package DO-35
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 46 V IZT = 2.5 mA 2
Zener Impedance ZZT 90 Ohms IZT = 2.5 mA 2
Zener Impedance at Low Current ZZK 600 Ohms IZK = 0.5 mA 2
Reverse Leakage Current IR 0.1 uA VR = 32 V 2
Power Dissipation Pd 500 mW 1
Maximum Forward Voltage VF 1 V IF = 100mA 1
Storage Temperature Range TSTG -65 200 OC 1
Operating Junction Temperature TJ 200 OC 1

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin Solder hot dip Tin(Sn) lead finish Cathode indicated by polarity band 1

CAD (KiCad official)

  • Symbol: BZX55C43
  • Footprint: Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal
  • 3D model: DO-35 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: LGE datasheet (2 pp, sha256 73b78e0d5a45a2c3, retrieved 2026-10-26, 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