0603TSFV Series - 0603 Size Lead-Free, Halogen Free, Very Fast-Acting Chip Fuse

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Disclaimer Notice

Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, 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.

Very fast-acting fuses help provide overcurrent protection for systems using DC power sources up to 65VDC. The fuses’ thin film design helps provide fast fusing under low overload current and low DCR (Direct Current Resistance).

These RoHS-compliant, surface-mount devices offer strong arc suppression characteristics and facilitate the development of more reliable, high-performance consumer electronics, such as notebook computers and tablets, digital cameras, memory cards, toys, Bluetooth earphones and other portable electronics devices.


  • Very fast acting at 200% and 300% overloads
  • Inrush current withstand capability at high overloads
  • Thin body for space-limited applications
  • Fiberglass enforced epoxy fuse body
  • RoHS compliant and lead-free materials


  • Lead-free materials and RoHS compliant
  • Halogen free
  • Fiberglass enforces epoxy fuse body design
  • Low DCR
  • -55°C to +90°C operating temperature range


  • Notebook computers and tablets
  • Digital cameras
  • Memory cards
  • Toys
  • Bluetooth earphones
  • Portable electronics devices

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VDC (V)Nominal Melting I2T (A2sec)Resistance
Max Operating Temp (°C)SizeProduct
0603TSFV050FM/65-20.5650.0150.185900603Product SpecificationCheck
0603TSFV075FM/65-20.75650.0250.112900603Product SpecificationCheck
0603TSFV100FM/65-21650.030.069900603Product SpecificationCheck
0603TSFV125FM/65-21.25650.0520.048900603Product SpecificationCheck
0603TSFV150FM/65-21.5650.0770.037900603Product SpecificationCheck
0603TSFV175FM/35-21.75350.10.031900603Product SpecificationCheck
0603TSFV200FM/35-22350.120.026900603Product SpecificationCheck
0603TSFV250FM/35-22.5350.150.021900603Product SpecificationCheck
0603TSFV300FM/35-23350.350.0176900603Product SpecificationCheck
0603TSFV350FM/35-23.5350.440.0148900603Product SpecificationCheck
0603TSFV400FM/35-24350.60.0125900603Product SpecificationCheck
0603TSFV500FM/35-253510.0095900603Product SpecificationCheck