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Contents

README

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P6SMB510A

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

P6SMB510A from Littelfuse, in a SMB. 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 SMB
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 VR 434 V 2
Breakdown voltage (min) VBR 485 V @ IT = 1 mA 2
Breakdown voltage (max) VBR 535 V @ IT = 1 mA 2
Maximum clamping voltage VC 698 V @ Ipp = 1.2 A 2
Maximum peak pulse current Ipp 1.2 A 2
Maximum reverse leakage current IR 1 µA @ VR = 434 V 2
Maximum temperature coefficient of VBR 0.112 %/C 2
Peak pulse power dissipation (stacked-die part) PPPM 800 W 10/1000us test waveform (Fig.4), Note 1, Note 2, stacked-die parts 1
Power dissipation on infinite heat sink PD 5 W TL = 50°C 1
Peak forward surge current IFSM 100 A 8.3 ms single half sine wave (Note 3), unidirectional device only 1
Maximum instantaneous forward voltage (stacked-die part) VF 5 V at 50 A, unidirectional only (Note 4), stacked-die parts 1
Operating temperature range TJ -65 150 °C 1
Storage temperature range TSTG -65 175 °C 1
Typical thermal resistance junction to lead RƟJL 20 °C/W 1
Typical thermal resistance junction to ambient RƟJA 100 °C/W 1

CAD (KiCad official)

  • Symbol: P6SMB510A
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: p6smb510a-etched.step / p6smb510a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); p6smb510a.step / p6smb510a.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 2c321de35bbafba1, 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