PFRX.250 Circuit Protection

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PTC resettable fuses are one of the most important components in the electrical industry. PFRX.250 is a type of resettable fuse mainly used in the field of automotive electronics, industrial control, home appliances and medical equipment. It is widely used in automotive industry. Particularly, PFRX.250 resettable fuses provide secondary protection against over-current, over-voltage and short-circuits.

The PFRX.250 resettable fuse is designed using Polymeric Positive Temperature Coefficient material which atypical operations can be considered a combination of a fuse and a thermal circuit breaker. Unlike traditional fuse and other thermal breakers, this type of fuse will automatically re-sets itself after a short-circuit or over-current is detected

PFRX.250 has a cylindrical shape with an axial lead and no visible wire for its working. Its material is designed to have high temperature stability and excellent thermal cycling performance. The electric resistance of the PTC is inversely proportional to current. When the current is higher than the thermal trip level, the electric resistance will increase abruptly and it will cause the device to trip and limit the current. When the excessive current passes, the PTC resets and it will resume normal operation.

PFRX.250 resettable fuse has a wide application range. It can drive up to 5A current, operates from -55°C to +125°C and provide overload and short circuit protection. It also has low power loss and high efficiency. Moreover, it has a high short-circuit capacity, superior over-voltage protection and superior temperature coefficient.

Overall, PFRX.250 resettable fuse provides convenient installation and strong overload protection. It can be applied to automotive electronics, industrial control, home appliances and medical equipment. It is designed with high temperature stability and excellent thermal cycling performance. In brief, PFRX.250 resettable fuse is the perfect solution for your power protection needs.

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