PTR030V0250-BK

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PTC Resettable Fuses are designed to provide a reliable and efficient way of protecting circuitry from over current damage. PTC fuses are a type of circuit protector that utilize a Positive Temperature Coefficient (PTC) resistor to detect over-current conditions. When an over-current is detected, the PTC element will heat up, cause a resistance increase, and open the circuit to prevent further damage. Unlike traditional fuses, PTC fuses are not replaced after tripping, as the PTC element will reset itself when the over-current or short-circuit has been removed.

The PTR030V0250-BK is a PTC Resettable Fuse designed for high performance circuit protection applications. This device is capable of handling very high current surges of up to 30A. The actual trip current rating can be adjusted according to customer requirement through an external resistor. The device is constructed using an epoxy molded package with an axial lead design, and offers excellent dielectric strength, superior thermal performance, and high surge capability. The PTR030V0250-BK is RoHS compliant and halogen free.

Applications for the PTR030V0250-BK PTC Resettable Fuse include over-current, over-voltage, and reverse polarity protection in a wide range of electronic devices such as batteries, electrical meters, personal computers, mobile phones, and medical devices. The device is also suitable for automotive applications such as power steering, gasoline and diesel systems, ABS pumps, and AC compressors.

The working principle of the PTR030V0250-BK is fairly simple. When an over-current condition occurs, the PTC element in the fuse will heat up and cause an increase in resistance. This will cause the electric current to trip, and the over-current will be interrupted. The increased resistance also prevents further damage to the circuit, as the electric current is interrupted before any damage can occur. For normal operation, the heat generated by the PTC element will dissipate until the temperature of the element returns to a normal level. At this point, the electric current will be allowed to flow freely again. With the exception of any direct damage that occurred during the over-current incident, the circuit will remain intact.

The PTR030V0250-BK is a great candidate for providing reliable over-current and surge protection for a wide range of electronic devices. Its high surge rating, excellent thermal performance, and adjustable trip current rating make it ideal for applications in automotive and consumer electronics. Furthermore, its compact size and resettable working principle make it a cost-effective and reliable device when compared to traditional fuses.

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