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1.5KE43CA

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DOWO TVS, DO-201. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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1.5KE43CA

DOWO · TVS · DO-201

1.5KE43CA from DOWO, in a DO-201. 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 A1 passive First lead of the bidirectional (CA suffix) TVS, interchangeable with the other lead because there is no polarity band; VBR 40.85-45.15 V at 1 mA, VRWM 36.8 V.
2 A2 passive Second lead of the bidirectional (CA suffix) TVS, interchangeable with the other lead; maximum clamping voltage 59.3 V at IPP 25.30 A on a 10/1000 µs waveform.

Key specifications

Parameter Value
Manufacturer DOWO
Package DO-201
Category Circuit Protection
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
Breakdown Voltage VBR 40.85 45.15 V @IT = 1 mA 3
Working Peak Reverse Voltage VRWM 36.8 V 3
Maximum Reverse Leakage IR 1 uA @VRWM 3
Maximum Reverse Surge Current IPP 25.3 A 10/1000 µs waveform 3
Maximum Clamping Voltage VC 59.3 V @IPP 3
Peak power dissipation PPP 1500 W 10/1000 µs waveform, TA=25°C 1
Power dissipation on infinite heatsink PD 6.5 W TL = 75 °C 1
Operating junction and storage temperature range TJ, TSTG -55 150 °C 1
Breakdown voltage tolerance -5 5 % Suffix A denotes 5% tolerance device 3

CAD (KiCad official)

  • Symbol: 1.5KE43CA
  • Footprint: Diode_THT:D_DO-201AD_P15.24mm_Horizontal
  • 3D model: DO-201 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: DOWO datasheet (4 pp, sha256 332c6c4e0f3105ca, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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