TCF250-100T-RB-B-0.5

Ptc Resettable Fuses Overview

The Littelfuse TCF250-100T-RB-B-0.5 is a PolySwitch resettable PPTC device designed for overcurrent protection in PCB-mounted circuits. It features radial termination and operates within a temperature range of -40°C to +85°C. The component has a hold current of 100 mA, a trip current of 200 mA, and a maximum voltage rating of 60 VDC. Its maximum rated current is 3 A, with a resistance of 20 ohms.

Ptc Resettable Fuses Feature Summary

• Provides reliable overcurrent protection by raising resistance as it heats to limit current flow during fault conditions
• Functions as a solid-state fuse that automatically resets once the fault condition is removed and the device cools down
• Offers compact protection for circuits, wiring harnesses, and PCB components against short circuits and excessive current

Ptc Resettable Fuses Applications

• Protection of automotive actuators, screens, and small motors
• Overcurrent safeguarding for telephony and networking equipment
• Circuit protection in power supply applications

Ptc Resettable Fuses Procurement Notes

Verify the specific part number suffix against official Littelfuse documentation to ensure correct package and lead configuration. Confirm that the radial lead spacing matches your PCB footprint requirements. Check RoHS compliance status directly from the manufacturer's datasheet before integration into regulated assemblies.

Ptc Resettable Fuses Selection Notes

Select this component when circuit protection requires a resettable solution with radial leads for through-hole mounting. Ensure the operating voltage does not exceed 60 VDC and the expected fault current remains within the device's maximum ratings. Consider the thermal environment to guarantee proper tripping behavior within the specified temperature range.

Ptc Resettable Fuses Part Context

This device belongs to the TS250 series of PolySwitch resettable fuses. It shares functional characteristics with other radial-leaded variants in the family, such as different hold current ratings. The series provides a cost-effective alternative to traditional one-time fuses for applications requiring automatic recovery from overcurrent events.

Ptc Resettable Fuses Replacement Considerations

Compatible substitutes include other Littelfuse TS250 series radial devices with matching electrical ratings. Verify that any replacement maintains the same hold current, trip current, and voltage specifications to ensure equivalent circuit protection performance.