RS60SB-135

Ptc Resettable Fuses Overview

The OptiFuse RS60SB-135 is a radial leaded polymeric PTC resettable fuse designed for circuit protection. It features a hold current of 1.35 A and a trip current of 2.7 A, with a maximum voltage rating of 60 VDC. The device has a maximum rated current of 40 A and an initial resistance of 300 mOhms. Power dissipation is rated at 1.7 W to 2.3 W depending on source documentation. Operating temperatures range from -40°C to +85°C. Physical dimensions include a diameter of 13.58 mm and a length of 3.1 mm, with a lead spacing of 5.1 mm.

Ptc Resettable Fuses Feature Summary

• Polymer PTC technology provides automatic reset functionality after fault clearance
• Radial leaded construction enables through-hole PCB mounting
• Designed for applications requiring frequent overcurrent conditions or constant uptime

Ptc Resettable Fuses Applications

• Electronics circuits subject to frequent overcurrent events
• Systems requiring constant uptime maintenance
• Wide variety of general electronics applications

Ptc Resettable Fuses Procurement Notes

Verify the manufacturer designation carefully, as Littelfuse also lists a similar part number (60R135XF) with identical electrical parameters but different branding. Confirm that the specific OptiFuse RS60SB-135 variant matches your supply chain requirements. Ensure the component meets RoHS compliance standards if required by your manufacturing process. Cross-reference datasheets to confirm physical dimensions and lead spacing match your PCB footprint design constraints.

Ptc Resettable Fuses Selection Notes

Select this component when a 1.35 A hold current and 60 VDC rating are required for radial mounting. Consider the 300 mOhms initial resistance for low-voltage drop applications. Evaluate the thermal environment to ensure operation within the -40°C to +85°C range. Compare against Littelfuse equivalents if brand diversification is necessary, ensuring parameter alignment for direct substitution in existing designs.

Ptc Resettable Fuses Part Context

This part belongs to the RS60SB series of resettable fuses manufactured by OptiFuse. The series offers various current ratings within the same form factor. It falls under the category of PPTC resettable fuses used for circuit protection. The product is distinct from surface-mount options, utilizing a radial leaded package for traditional board integration.

Ptc Resettable Fuses Replacement Considerations

The Littelfuse 60R135XF is a confirmed substitute with matching electrical specifications including 1.35 A hold current and 60 VDC rating. Verify mechanical compatibility before replacement.