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5KP70A-B

Littelfuse · ESD And Surge Protection (TVS/ESD) · P600

5KP70A-B from Littelfuse, in a P600. 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 P600
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 (min to max) VBR 77.8 86 V @ IT = 5 mA 2
Maximum clamping voltage VC 113 V @ IPP = 45.1 A 2
Maximum peak pulse current IPP 45.1 A 2
Maximum reverse leakage current IR 2 µA @ VR 2
Reverse stand-off voltage VR 70 V 2
Peak pulse power dissipation PPPM 5 kW 10/1000µs test waveform (Fig.2) (Note 1) 1
Steady state power dissipation PD 8 W Infinite heat sink at TL = 75ºC 1
Peak forward surge current IFSM 400 A 8.3 ms single half sine wave, unidirectional only (Note 2) 1
Maximum instantaneous forward voltage VF 3.5 V at 100 A, unidirectional only (Note 3); printed as 3.5/5.0 V, 5.0 V applies to stacked-die parts 1
Operating junction and storage temperature range TJ, TSTG -55 175 °C 1
Typical thermal resistance junction to lead RθJL 8 °C/W Typical 1
Typical thermal resistance junction to ambient RθJA 40 °C/W Typical 1
VBR temperature coefficient αT 0.1 % VBR@TJ = VBR@25°C x (1+αT x (TJ - 25)); typical value 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 • Matte tin lead-free plated • Halogen free and RoHS 1

CAD (KiCad official)

  • Symbol: 5KP70A-B
  • Footprint: Diode_THT:D_P600_R-6_P20.00mm_Horizontal
  • 3D model: P600 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 a0c9c30e73a4d50e, retrieved 2026-10-16, 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