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Low Rho Series for Overcurrent and Overtemperature Protection

Littelfuse Polyswitch® resettable PPTCs with ultra low operating resistance

Image of Littelfuse's Lo Rho Series Low Resistance SMD PPTCsLittelfuse's Low Rho surface mount PPTC (polymer positive temperature coefficient) devices provide overcurrent protection for applications where ultra low internal resistance, ultra low voltage drop and automatic resettable protection are desired. This new series allows a higher hold current device in a smaller factor and lower profile as compared to a standard PPTC. It offers ultra low internal resistance while maintaining the high level electrical characteristics and performances of standard PPTC products. All devices are UL recognized and TUV approved and have maximum fault current of 50 A. They are available in 0402 to 2920 sizes while the hold current ranges from 100mA to 9A.

Features
  • Fast response to fault currents
  • Automatically resettable
  • Low resistance at normal operating hold current
  • Thin profile: < 0.75 mm
  • Available in various footprint and current ratings
  • Compatible with high temperature solders
  • Ultra-low internal resistance
  • Surface mount 0402 to 2920 size
  • Very thin profile
Applications
  • USB Type A and Type B ports
  • Lithium batteries
  • Mobile and wearables
  • Televisions
  • Point of sale equipment
  • Cameras
  • Storage drives
  • Game consoles
  • Servers and computing equipment
  • Personal care

Low Rho Series

ImageManufacturer Part NumberDescriptionAvailable Quantity
PTC RESET FUSE 6V 750MA 06030603L075SLYRPTC RESET FUSE 6V 750MA 06030View Details
PTC RESET FUSE 6V 1A 06030603L100SLYRPTC RESET FUSE 6V 1A 06032541 - ImmediateView Details
PTC RESET FUSE 6V 1.5A 06030603L150SLYRPTC RESET FUSE 6V 1.5A 06034724 - ImmediateView Details
PTC RESET FUSE 6V 1.75A 06030603L175SLYRPTC RESET FUSE 6V 1.75A 0603944 - ImmediateView Details
PTC RESET FUSE 6V 3A 12061206L300SLTHYRPTC RESET FUSE 6V 3A 12063273 - ImmediateView Details
PTC RESET FUSE 6V 750MA 08050805L075SLYRPTC RESET FUSE 6V 750MA 08054761 - ImmediateView Details
PTC RESET FUSE 6V 2.82A 12061206L380SLTHYRPTC RESET FUSE 6V 2.82A 12066935 - ImmediateView Details
PTC RESET FUSE 6V 1.1A 08050805L110SLYRPTC RESET FUSE 6V 1.1A 08056612 - ImmediateView Details
PTC RESET FUSE 6V 4A 12061206L400SLWRPTC RESET FUSE 6V 4A 120614592 - ImmediateView Details
PTC RESET FUSE 6V 500MA 04020402L050SLKRPTC RESET FUSE 6V 500MA 040214813 - ImmediateView Details
Updated: 2021-04-07
Published: 2012-10-29