component

1.5KE91CA

Public Made by Adom

by adom

Liown ESD And Surge Protection (TVS/ESD), DO-201. 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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1.5KE91CA

Liown · ESD And Surge Protection (TVS/ESD) · DO-201

1.5KE91CA from Liown, 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 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 Liown
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
Reverse Stand-Off Voltage (Uni./Bi.) VR 77.8 V 1.5KE91CA (bidirectional); printed 77.80 3
Breakdown Voltage Min VB 86.5 V @IT 1 mA 3
Breakdown Voltage Max VB 95.5 V @IT 1 mA 3
Maximum Clamping Voltage VC 125 V @IPP 12.2 A 3
Reverse Leakage Current IR 1 μA @VR 77.80 V 3
Peak Pulse Power Dissipation PPPM 1500 W 10/1000μs waveform (Note1, Note2, Fig.1) 1
Steady State Power Dissipation PM(AV) 6.5 W TL=75℃ (Fig.5) 1
Operating Junction and Storage Temperature Range TJ、TSTG -55 150 ℃ Operating junction and storage 1
Typical Thermal Resistance Junction to Lead RθJL 20 ℃/W Typical, junction to lead 1
Typical Thermal Resistance Junction to Ambient RθJA 75 ℃/W Typical, junction to ambient 1

CAD (KiCad official)

  • Symbol: 1.5KE91CA
  • 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: Liown datasheet (6 pp, sha256 b3bcee92a1eabbdd, retrieved 2026-10-13, 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