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Contents

README

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1.5KE150CA-B

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

1.5KE150CA-B from Littelfuse, 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 Littelfuse
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 (bidirectional, 1.5KE150CA) VBR 143 158 V @ IT = 1 mA; TA = 25°C 2
Maximum clamping voltage VC 207 V @ Ipp = 7.3 A 2
Maximum peak pulse current Ipp 7.3 A 2
Maximum reverse leakage current IR 1 µA @ VR = 128.00 V 2
Peak pulse power dissipation (single die parts) PPPM 1500 W 10/1000µs test waveform (Fig.4) (Note 1); single die parts 1
Steady state power dissipation on infinite heat sink PD 6.5 W at TL = 75ºC 1
Operating junction and storage temperature range TJ, TSTG -55 175 °C 1
Reverse standoff voltage VR 128 V 2
Typical thermal resistance junction to lead RθJL 15 °C/W 1
Typical thermal resistance junction to ambient RθJA 75 °C/W 1
VBR temperature coefficient αT 0.1 % VBR @ TJ = VBR@25°C x (1+αT x (TJ - 25)); typical value 1

CAD (KiCad official)

  • Symbol: 1.5KE150CA-B
  • 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: Littelfuse datasheet (6 pp, sha256 4290e23a327d9203, retrieved 2026-10-15, 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