Semiconductor Fuses


  • Littelfuse PSR High-Speed Fuse Series

    PSR Flush End

  • Littelfuse PSR Series High-Speed Square Body Fuses are specially designed for protection of power se...More

  • Amps (A): 40, 50, 050, 63, 063, 80, 080, 100, 125, 160, 200, 250, 280, 315, 350, 400, 450, 500, 550, 630 more

  • Interrupting Rating: 100kA@1300VAC, 200kA@600VAC, 200kA@650VAC, 200kA@700VAC

  • Opening: Very Fast-Acting (FF)

pdf icon PSR Flush End Series Datasheet

pdf icon POWR-SPEED® Fuse Cross Reference

This guide covers the most popular high-speed fuse types that Littelfuse has in stock and ready to ship.

pdf icon POWR-Speed Technical Application Guide

Your complete guide to high-speed (semiconductor) fuses. Download the application guide to find out more.

pdf icon POWR-SPEED® Fuse Cross Reference - Mandarin

本指南涵盖Littelfuse最受欢迎的 高速熔断器类型,库存充足,可随 时发货!交叉引用旨在对快速识别 和产品选型作出指导。我们建议 您在进行替换之前查看全部适用 规格。

pdf icon POWR-SPEED® Range of High-Speed Fuses - Flyer

Optimized protection for your power electronics.

pdf icon POWR-SPEED® Range of High-Speed Fuses Flyer - Mandarin

为您的电力电子设备提供最佳保护

pdf icon POWR-SPEED® Catalog

These certified high-speed fuses are optimized for performance and efficiency to better protect your critical power semiconductors against short circuits. PF611

pdf icon POWR-SPEED® Catalog - Mandarin

高速半导体熔断器产品目录

PSR030-FL0000 3D Model STP

PSR030-FS0000 3D Model STP

PRS031-FL0000 3D Model STP

PSR031-FS0000 3D Model STP

PSR032-FL0000 3D Model STP

PSR032-FS0000 3D Model STP

PSR033-FL0000 3D Model STP

PSR033-FS0000 3D Model STP

PSR070-FL0000 3D Model STP

PSR070-FS0000 3D Model STP

PSR071-FL0000 3D Model STP

PSR071-FS0000 3D Model STP

PSR072-FL0000 3D Model STP

PSR072-FS0000 3D Model STP

PSR073FL0000 3D Model STP

PSR073-FS0000 3D Model STP

tc icon PSR30 Time Current Curves 40A-550A

tc icon PSR31 Time Current Curve 200A-800A

tc icon PSR32 Time Current Curve 400A-1100A

tc icon PSR33 Time Current Curve 450A-2000A

tc icon PSR70 Time Current Curve 50A - 315A

tc icon PSR71 Time Current Curve 160A-450A

tc icon PSR72 Time Current Curve 250A-630A

tc icon PSR73 Time Current Curve 315A - 700A

plt-icon PSR Flush Mount Series Peak Let Thru Curves

pdf icon OL-PSR FL Style Flush Mount 2D Print

pdf icon OL-PSR FS Style Flush Mount 2D Print

Littelfuse_Mexico_PiedrasNegras_ISO14001icon 2020-10-24_ISO9001 2015_IBU Piedras Negras Mexico

Littelfuse_Mexico_PiedrasNegras_ISO14001icon 2021-02-14_ISO 14001 2015_Piedras Negras Mexico

pdf icon L60S KLC Series Datasheet

LittelfusePiedrasNegrasTS16949 2009icon 2020-10-20_IATF 16949_Piedras Negras Mexico

KLC 1-30A 3D Model STP

KLC 35-60A 3D Model STP

KLC 70-100A 3D Model STP

KLC 110-200A 3D Model STP

KLC 225-400A 3D Model STP

KLC 450-800A 3D Model STP

plt-icon KLC Series Peak Let-Thru Curves 30A-800A

tc icon KLC Time Current Curves

pdf icon L15S Series Datasheet