CMF-SDP50A-2

Ptc Resettable Fuses Overview

The Bourns CMF-SDP50A-2 is a surface-mount polymeric positive temperature coefficient (PPTC) resettable fuse designed for circuit protection. It belongs to the CMF-SDP series and features a ceramic PTC element. The device maintains a holding current of 90 mA and trips at 190 mA, with a maximum voltage rating of 230 VAC. It offers a resistance of 50 ohms and can handle a maximum rated current of 2.5 A. Operating within a temperature range of -40°C to +125°C, it is supplied in reel packaging for automated assembly.

Ptc Resettable Fuses Feature Summary

• Self-resetting functionality eliminates the need for manual replacement after fault clearance
• Ceramic PTC construction provides robust thermal stability and reliability
• Surface mount design facilitates efficient PCB integration and automation

Ptc Resettable Fuses Applications

• Overcurrent protection for portable electronic devices
• Protection circuits in telecommunications equipment
• Battery pack safeguarding in consumer electronics

Ptc Resettable Fuses Procurement Notes

Verify the specific suffix 'A' against the manufacturer datasheet to confirm exact electrical tolerances and package variations. Ensure the 230 VAC rating aligns with your system's maximum operating voltage. Confirm RoHS compliance status through official documentation before finalizing procurement specifications.

Ptc Resettable Fuses Selection Notes

Select this component when high resistance values are required alongside overcurrent protection capabilities. The 50-ohm initial resistance may impact low-voltage signal lines; verify circuit compatibility. The 90 mA holding current suits applications requiring precise low-current monitoring without nuisance tripping during normal operation.

Ptc Resettable Fuses Part Context

This part is part of Bourns' CMF-SDP series of surface-mount resettable fuses. The series utilizes ceramic PTC technology to offer compact protection solutions. These components are engineered for high-reliability applications where space constraints and automated manufacturing processes are critical design factors.

Ptc Resettable Fuses Replacement Considerations

Consult the official Bourns datasheet for direct cross-reference part numbers. Verify that any substitute matches the 90 mA holding current, 190 mA trip current, and 50-ohm resistance specifications to ensure functional equivalence.