L60QS Series - High-Speed Semiconductor Fuse

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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The Littelfuse QS series of High-speed Semiconductor Fuses is designed to safeguard power semiconductor devices. These cylindrical-shaped, 10x38 mm fuses with higher current ratings, are fast-acting and extremely current limiting. They provide balanced performance and reliable short-circuit protection to extend product longevity while lowering potentially damaging heat energy to the device being protected.

Features and Benefits:
  • High ac and dc interrupting rating provides fast and reliable short circuit protection
  • Fast acting fuse responds quickly to a range of fault currents to safeguard device
  • Excellent cycling capability to handle on/off switching increases product reliability and longevity
  • Compact case size with common dimensions saves space and can be used in a variety of applications
  • Compliant with UL and IEC standards supports global market applications and streamlines inventory
Applications:
  • Ac-dc power converters
  • Control circuits
  • Data center and other power distribution units (PDUs)
  • EV charging stations
  • Power supplies
  • Variable speed drives
  • Uninterruptible power supply (UPS)

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)Interrupting RatingNominal Melting I2T (A2sec)Resistance
(Ω)
OpeningVAC (V)VDC (V)StockSamplesCompare
L60QS04040200 kA @ 600 Vac2770.0024Very Fast-Acting (FF)600600CheckOrder
L60QS040R40200 kA @ 600 Vac2770.0025Very Fast-Acting (FF)600600CheckOrder
Catalog # Certificates
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L60QS040 CEicon
L60QS040R CEicon
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
L60QS040.T HSF 10X38 CYL FERRULE 600V AC/DC 40A RoHS No 06/27/2024 PbFree No 06/27/2024 Yes
06/27/2024
L60QS040.HXR HSF 10X38 CYL PCB 600V AC/DC 40A RoHS No 06/27/2024 PbFree No 06/27/2024 Yes
06/27/2024
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