component

5KP78A

Public Made by Adom

by adom

Littelfuse TVS, P600. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.

componenttvs-fuse-board level protection5kp78afactory-2.0.0extractor-text

Verified 5KP78A

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier lcsc, 2 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: 5KP78A · P600 · 2 pins
  • ✓copper: 2 copper pads, none touching another net
  • ✓datasheet: unpolarised two-terminal part: pins 1 and 2 by library convention, no names to check
  • ✓distributor: lcsc C1983469, digikey 5KP78ALFTR-ND, mouser 637-5KP78A
  • ✓family: D_P600_R-6_P20.00mm_Horizontal
  • ✓files: 6 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-7fgcs3ty/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 1 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 2 pins = 2 pads
  • ✓pose: 1 STEP(s) Z-up, seated, centred
  • ✓symbol: 2 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ 5kp78a.kicad_sym✓ 5kp78a.kicad_mod✓ 5kp78a.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

PCB Footprint

Open full view ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.

Datasheet

Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Download PDF
Contents

README

markdown

5KP78A

Littelfuse · TVS · P600

5KP78A 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 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 P600
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
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 8.3ms single half sine wave, unidirectional only (Note 2) 1
Maximum Instantaneous Forward Voltage (single-die parts) VF 3.5 V at 100A for unidirectional only (Note 3) 1
Maximum Instantaneous Forward Voltage (stacked-die parts) VF 5 V at 100A for unidirectional only, stacked-die parts (Note 3) 1
Operating Junction and Storage Temperature Range TJ, TSTG -55 175 °C 1
Breakdown Voltage VBR 86.7 95.8 V @ IT = 5 mA 2
Maximum Clamping Voltage VC 126 V @ IPP 2
Maximum Peak Pulse Current IPP 40.5 A 2
Maximum Reverse Leakage Current IR 2 µA @ VR 2
Typical Thermal Resistance Junction to Lead RθJL 8 °C/W 1
Typical Thermal Resistance Junction to Ambient RθJA 40 °C/W 1
Temperature Coefficient of VBR (αT) 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: 5KP78A
  • 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 2026-10-30, 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