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Circuit Protection Selection Guide
Consult this guide to learn about circuit protection considerations and the solutions Littelfuse offers. Tables help match products with applications.
Link has been copied to clipboardRadial Leaded - PolySwitch® Resettable PPTC Devices
PolySwitch® radial leaded PPTCs provide reliable overcurrent protection for circuits, wiring harnesses, and PCB components. These compact PPTC fuse devices solder easily onto boards, reset automatically, and reduce the need for replacements. Littelfuse offers polyswitch radial leaded PPTCs for automotive, telecom, and other specialized applications.
- Available with a very wide range of operating voltage ratings, from 16 V dc to 600 V dc
- Maximum times to trip from 1 s to 22 s
- Available with an extremely wide range of hold current ratings, from 50 mA to 14 A
- Available with trip currents between 160 mA and 27.3 A
- Maximum ampere ratings of 100 A
- UL Recognized
- Certified lead-free, halogen-free and RoHS compliant
- Available in in many different sizes and shapes, as well as with a variety of lead styles and lengths
- Select devices also provide overvoltage protection
- Single-use devices available within select series
- Compatible with high-volume electronics assembly processes
Radial Leaded - PolySwitch® Resettable PPTC Devices Parts
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