SMD0805P020TFA

Ptc Resettable Fuses Overview

The Littelfuse SMD0805P020TFA is a PolySwitch resettable PPTC device designed for surface-mount applications. It provides overcurrent protection with a hold current of 0.2 A and a trip current of 0.4 A. The component features a maximum operating voltage of 6 V and a minimum resistance of 10 mOhms. It operates within a temperature range of -40°C to +85°C and withstands reflow soldering temperatures up to 260°C.

Ptc Resettable Fuses Feature Summary

• Provides reliable overcurrent protection against short circuits and excessive current loads
• Acts as a solid-state fuse that raises resistance as it heats to limit current flow
• Designed for surface-mount technology (SMT) compatible with standard reflow soldering processes

Ptc Resettable Fuses Applications

• Protection of actuators in commercial and passenger vehicles
• Overcurrent protection for display screens in automotive electronics
• Circuit safeguarding for small motors in automotive systems

Ptc Resettable Fuses Procurement Notes

Verify the specific package type and tape-and-reel quantity required for your assembly line. Confirm that the 6V rating aligns with your circuit's maximum operating voltage. Ensure the PCB layout supports the thermal requirements for automatic reset functionality after a fault event occurs.

Ptc Resettable Fuses Selection Notes

Select this component when a compact, resettable solution is needed for low-voltage DC circuits. The 0.2A hold current suits applications requiring precise current limiting without nuisance tripping during normal operation. Consider the thermal environment to ensure the device resets correctly after fault clearance.

Ptc Resettable Fuses Part Context

This part belongs to the PolySwitch family of resettable fuses from Littelfuse. These devices serve as alternatives to traditional one-time fuses, offering reusable protection. The SMD0805 designation indicates the surface-mount footprint size, facilitating automated placement on printed circuit boards.

Ptc Resettable Fuses Replacement Considerations

Direct substitutes must match the 0.2A hold current, 6V rating, and SMD0805 footprint. Verify that any replacement maintains the same trip characteristics and thermal performance to ensure circuit integrity.