VTP175UDIIF

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PTC resettable fuses are current-sensing devices in which a polymeric Positive Temperature Coefficient (PTC) thermistor provides circuit protection while allowing automatic reset after normal fault conditions. They are often used in lieu of traditional fuses and can help reduce maintenance costs.

The VTP175UDIIF PTC Resettable Fuse is a two-terminal, high-current protection device designed for use in a variety of applications. It features a current-limiting circuit breaker design, providing both thermal and electrical protection in one compact package. The VTP175UDIIF is ideal for applications such as power supplies, power tools, HVAC systems, and motor control circuits.

The VTP175UDIIF is designed for permanent connection to a circuit, and it provides protection from shorts and over-currents. Its construction includes a low-resistance sensing element that senses when a circuit exceeds its designed current rating. This sensing element is made from a special polymeric Positive Temperature Coefficient (PTC) thermistor material, which is sensitive to both current and temperature. When the current or temperature exceeds the designed parameters, the thermistor will heat up. When the thermistor heats up beyond a certain temperature, its impedance increases drastically, limiting the current in the circuit. The device then safely breaks the circuit until it can cool down to its normal operational temperature. When the device cools, the impedance returns to its normal value, and the device will reset itself.

In addition to its self-resetting capability, the VTP175UDIIF offers a variety of features to increase robustness and reliability. It has a wide operating temperature range of -25°C to +85°C. It also has low internal resistance and low self-heating characteristics. This makes it suitable for high-current applications, where low-resistance is critical. Additionally, the VTP175UDIIF has a wide range of current ratings, from 0.8A to 200A.

The VTP175UDIIF is easy to use and install, and is a cost-effective and reliable alternative to traditional fuses. This device is a popular choice for a variety of applications due to its features such as easy installation, self-resetting capability, wide operating temperature range, low internal resistance, and low self-heating characteristics. It can be used to protect sensitive components and circuits from over-current, over-voltage, and fault conditions.

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