RLD60P185XF

Ptc Resettable Fuses Overview

The Littelfuse RLD60P185XF is a PolySwitch resettable PTC fuse designed for through-hole mounting. It features radial leads and a disk package, operating within a temperature range of -40°C to 85°C. The device has a maximum voltage rating of 60V DC and a hold current (Ih) of 1.85A. Its trip current (It) is specified at 3.7A, with a maximum fault current rating of 40A. The component exhibits a cold resistance range of 0.2 to 0.47 ohms at 20°C.

Ptc Resettable Fuses Feature Summary

• Provides reliable overcurrent protection by increasing resistance as it heats during fault conditions
• Resettable functionality allows the device to return to low-resistance state after cooling
• Radial leaded construction enables secure through-hole PCB mounting

Ptc Resettable Fuses Applications

• Circuit protection for wiring harnesses
• Protection for printed circuit board components
• Overcurrent safeguarding for general-purpose electronic circuits

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'P185XF' against official Littelfuse documentation to confirm exact electrical tolerances and packaging specifications. Ensure the procurement source provides valid agency approval certifications such as UL or CSA if required for the target application. Cross-reference the datasheet for any updates on RoHS compliance status and lead-free material declarations prior to ordering.

Ptc Resettable Fuses Selection Notes

Select this component when a resettable solution is preferred over single-use fuses for 60V DC circuits requiring approximately 1.85A continuous current. The radial leaded form factor is suitable for manual assembly or wave soldering processes. Consider the thermal environment, as the maximum operating temperature is limited to 85°C, which may require derating in high-ambient applications compared to higher-rated series.

Ptc Resettable Fuses Part Context

This part belongs to the RLD60 series of PolySwitch resettable fuses from Littelfuse. These devices are engineered as general-purpose protection solutions for various commercial and industrial electronics. The series offers a balance of voltage rating and hold current options, utilizing polymer technology to provide solid-state overcurrent protection without the need for replacement after tripping.

Ptc Resettable Fuses Replacement Considerations

Consult official Littelfuse substitution guides for verified equivalents. Generic cross-references should be validated against pinout, voltage, and current ratings.