VP4032K122R175

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The VP4032K122R175 is a surface mount varistor, classified as a Transient Voltage Suppressors (TVS) device. As such, it is designed to protect against transient voltage spikes and surges which can occur during events such as lightning strikes and power glitches in the electrical circuits. Varistor devices of this type are available in a variety of configurations ranging in size, voltage rating, and impedance.

The VP4032K122R175 is an unidirectional, bi-directional or two-electrode varistor designed for surface mount application in electronic circuits. It is a glass-encapsulated, metal-oxide varistor (MOV) having a voltage rating of 175V, and a disc size of 4mm. Its operating temperature range is -40°C to 125°C.

The varistor works on the principle of avalanche breakdown. The breakdown process takes place when the applied voltage exceeds the breakdown voltage, resulting in a reverse recovery current of a very high and constant value and a rapid voltage drop. This sudden decrease in voltage helps to suppress transients and spikes. The varistor has a fast response time, typically 2ns, is capable of operating on very short-duration surges, and does not cause any damage to the equipment or circuit.

Varistors are suitable for protecting sensitive electronic components from overvoltage and have a wide range of applications. These include overvoltage protection for power supplies, voltage transients, electrical noise and interference, lightning strikes, static electricity and overvoltage spikes. They can also be used in EMC/EMI filtering, surge protection for data lines, and environmental protection from humidity and low pressure. Varistors such as this particular part can also be used to protect automotive electronic systems.

In conclusion, the VP4032K122R175 is a Transient Voltage Suppressor (TVS) varistor which provides high-performance protection against transient voltage surges and spikes. It is suitable for surface mount applications, has a voltage rating of 175V, and an operating temperature range of -40°C to 125°C. It is capable of handling transient voltage surges, is fast in response time, and is suitable for a range of industrial and consumer applications.

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