5KP170A-B Circuit Protection

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TVS - Diodes, also referred to as transient-voltage-suppression diodes, are an advanced form of protection devices used to protect sensitive systems from overvoltage, surges and other destructive power spikes. The 5KP170A-B is a TVS Diode that is typically used in industrial electronics, automotive and telecom applications.

The 5KP170A-B is a 170V, 5kA unidirectional silicon avalanche TVS Diode, also known as a voltage clamping diode. It has a peak power rating of 420W, and an operating temperature range from -55°C to 175°C. It is designed with Glass Passivated Chip Junctions for better reliability and lets up to 170V of supply voltage pass through, clamping voltages over that to a safe level. The device can withstand transient voltages of up to 8kV, plus current surges of up to 5kA and dissipation of up to 420W. This ensures safe and effective protection against overvoltage and power surges.

One of the main applications of the 5KP170A-B is in industrial and mechanical systems. It provides excellent protection against destructive power spikes and transients, ensuring improved system reliability and safety. It is also commonly used in automotive applications, such as vehicle data networks and hybrid vehicle systems, due to its ability to withstand high voltages and power surges. As well as this, the device is ideal for telecom applications, such as telephone and data lines, as it can withstand fast transients of up to 8kV and provide reliable protection against overvoltage.

In terms of working principle, the 5KP170A-B works by clamping voltages that are over its supply voltage to a safe level. This is achieved by the device’s avalanche breakdown effect, which triggers a simple rectifying mechanism. When a transient voltage of larger magnitude than the device’s supply voltage is applied to the system, the avalanche effect is triggered. This causes a fraction of the current to be diverted into the TVS diode, thus providing a means of protection against the harmful effects of overvoltage and power surges. The 5KP170A-B can then withstand transient voltages measured up to 8kV.

Overall, the 5KP170A-B is an excellent choice for a wide range of applications. It is designed to provide robust, reliable protection against overvoltage and power surges, withstanding transients up to 8kV and dissipating up to 420W. The device can also be used in industrial, automotive and telecom applications, due to its excellent voltage clamping capabilities and high power ratings. Furthermore, its Glass Passivated Chip Junctions give the device an extra level of protection to ensure high system reliability and safety.

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