30R700UF

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PTC Resettable Fuses are an effective, convenient, and cost-effective solution to many appliance and electronic device problems. PTC Resettable Fuses offer a useful solution for high performance and fault protection. In particular, the 30R700UF is a common PTC Resettable Fuse that offers excellent performance and protection. This article will provide an overview of the 30R700UF, its application field and working principle.

Application Field

The 30R700UF is a type of Polymeric Positive Temperature Coefficient (PPTC) Resettable Fuses. It can be used to protect electronic devices from over-current, over-voltage and over-temperature conditions. It is widely used in consumer electronics, industrial control systems, medical equipment, and other fields. Its wide working temperature range makes it suitable for a variety of applications. It has a wide current limit range of 0.1A to 70A, making it suitable for a variety of power requirements.

Working Principle

The 30R700UF features a PTC device, which is made up of a thermally sensitive element, an electrically conductive element, and a heat dissipation element. When the current through the device exceeds a certain threshold, the metal conductor heats up, expanding and increasing the resistance. This increases the temperature of the thermostatically sensitive element, and as the temperature increases, the resistance further increases, eventually reaching an open state. The device automatically resets once the current falls below the threshold value, restoring the device to its normal operating state.

The 30R700UF can also be programmed to have a predetermined trip current by connecting an optional resistor in parallel with the PTC device. Depending on the value of the resistor, the trip current of the 30R700UF can be adjusted to best suit the application. It is also RoHS compliant, making it a reliable choice.

The 30R700UF has a comprehensive reliability test system, including a dielectric test, a thermal shock test, a thermal cycling test, a vibration test, and a surge impulse test. This ensures that the 30R700UF can provide reliable protection for the device. This reliability makes it a trustworthy solution for a variety of applications.

Conclusion

In conclusion, the 30R700UF PTC Resettable Fuses offer reliable current protection and fault protection for a variety of electronic devices. It offers excellent performance, a wide current range and a wide temperature range. It can also be programmed to have a predetermined trip current. Its reliability and robust performance make it an attractive solution for many electronic device needs.

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