PPTC Devices Protect Against Over-Current And Over-Temperature Faults

Designed for use in line voltage applications, the LVR series of PolySwitch resettable devices help protect against both over-current and over-temperature faults on the primary side of power supplies and transformers. The PPTC (polymeric positive temperature coefficient) devices are rated at 240 Vac, permitting maximum voltages of up to 265 Vac. Available in hold current ratings of from 50 to 400 mA, the LVR series was developed to help prevent damage to control boards and components by limiting current in the event of a load-side short-circuit or over-draw, or improper incoming voltage. Available in straight- or kinked-lead configurations, the LVR PPTC devices can be supplied in tape-and-reel packaging for compatibility with high-volume assembly. Pricing is $0.20 to $0.34 each in OEM quantities. TYCO ELECTRONICS, Menlo Park, CA. (800) 227-7040