3KP170CA

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TVS diodes are an integral component in electronic system design for voltage transient suppression. The 3KP170CA is a unidirectional TVS diode that offers advanced protection levels and performance. Its application field and working principle should be understood in order to properly apply and protect sensitive electronic systems.

Application Field

The 3KP170CA is designed to protect sensitive electronic circuits from transient voltages and currents caused by electrostatic discharge (ESD), electrical fast transients (EFT), and lightning. It is specifically designed for applications where reliability and low power dissipation are both required. It is suitable for autovehicles, consumer electronics, telecommunications, computer systems, and other electrical applications.

Working Principle

The 3KP170CA is a unidirectional device which is designed to breakdown in an avalanche manner when the voltage reaches the breakdown voltage. The breakdown voltage of the TVS diode is typically lower than that of a normal Zener diode, thus allowing it to provide superior protection from transients with lower clamping voltages. The 3KP170CA, in particular, features an operating-voltage range of 5.5V to 170V and ultra-low capacitance of 0.55 pf.

Once a voltage transient occurs (such as an ESD or EFT event), the 3KP170CA provides a low-impedance path to ground, clamping the transient voltage to a safe level. The low capacitance of the 3KP170CA enables it to provide high-speed performance with minimal disruption to the host circuit. Additionally, the low clamping voltage reduces the risk of damage to the system components.

The 3KP170CA is constructed from a circuit assembly of silicon oxide and silicon nitride layers. This construction provides the device with excellent thermal stability and ensures that current distribution is uniform across the circuit. Additionally, this type of construction combines with the devices low capacitance and superior protection levels to provide an excellent level of protection.

The 3KP170CA is an effective way to provide protection to sensitive electronic systems from transient voltages and currents. Its application field includes a variety of industries, ranging from automotive to consumer electronics, and it offers advanced protection levels and low capacitance. Additionally, its construction provides excellent thermal stability and uniform current distribution. As a unidirectional device, it is able to provide superior protection with low clamping voltages.

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