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Contents

README

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P4KE12CA

Littelfuse · TVS · DO-204AL(DO-41)

P4KE12CA from Littelfuse, in a DO-204AL(DO-41). 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 1 passive Terminal 1 of an unpolarised fuse; either orientation.
2 2 passive Terminal 2 of an unpolarised fuse; either orientation.

Key specifications

Parameter Value
Manufacturer Littelfuse
Package DO-204AL(DO-41)
Category TVS/Fuse/Board Level 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 VR 10.2 V Maximum voltage that can be applied without operation (datasheet definition) 2
Breakdown voltage VBR 11.4 12.6 V @ IT = 1 mA 2
Maximum clamping voltage VC 16.7 V @ Ipp = 24.60 A 2
Maximum peak pulse current IPP 24.6 A 2
Maximum reverse leakage current IR 5 µA @ VR = 10.20 V (row value) 2
Peak pulse power dissipation (single die) PPPM 400 W 10/1000 µs test waveform, single die parts, Note 1 1
Steady state power dissipation PD 1.5 W Infinite heat sink at TL = 75 °C 1
Operating junction and storage temperature range TJ, TSTG -55 175 °C 1
Typical thermal resistance junction to lead RθJL 60 °C/W Typical value 1
Typical thermal resistance junction to ambient RθJA 100 °C/W Typical value 1
VBR temperature coefficient αT 0.1 % Typical value; VBR @ TJ = VBR@25°C x (1+αT x (TJ-25)) 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 level interconnect is Pb￾free and the terminal finish material is tin(Sn) (IPC/ 1

CAD (KiCad official)

  • Symbol: P4KE12CA
  • Footprint: Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal
  • 3D model: DO-204AL(DO-41) (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 cab61a39ecf2d397, retrieved 2026-10-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary two-terminal 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