V421HG34

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TVS - Varistors, MOVs are used for surge protection, over-voltage warning, oscillation prevention, voltage damping and other applications. V421HG34 is an example of such a product. It is a two-terminal lead-free surface mount metal oxide varistor. This component is designed to provide transient and surge protection in a variety of applications, from telecommunications to industrial machinery and consumer electronics.

The V421HG34 is capable of withstanding extreme voltage peaks and can be relied upon to protect against high voltage transients, voltage waves or surges. It is designed to provide linear protection in a wide variety of electrical networks. The device has a response time of less than 1ns, making it suitable to protecting circuits with high impedance. It is also designed to protect against power surges and voltage spikes in home and commercial applications, where high frequency electronic components may be damaged.

The peak current absorption of the V421HG34 is up to 6kA (8/20us waveform). It is capable of withstanding a maximum voltage surge of 6kV (10/1000 us waveform). The device has a low clamping voltage of 17V at maximum absorption of 6kA. Its compact size (SOT-23) and lead-free finish make it ideally suited for demanding high-density applications.

The V421HG34 is typically used in communication systems, consumer electronics, electronic systems, and other types of equipment to protect and provide surge and voltage protection. It can also be used in power supplies, transient protection circuits, and signal processing circuitry to protect against power disturbances and circuit malfunctions. The device can also be used to shunt excess current away from sensitive components or to reduce voltage transients. It is also well-suited for providing protection against electrostatic discharge (ESD) and electrical overstress (EOS) in mobile and battery-powered electronic products.

The working principle behind the V421HG34 varistor is that when an incoming voltage or surge exceeds the threshold of the varistor, it triggers the varistor to conduct current across its terminals. This allows the varistor to absorb the excess energy (in the form of electricity), preventing damage to the circuit. When a surge is applied to the varistor, the varistor will absorb the energy and dissipate it as heat, which can then be released from the device. This energy is dissipated over time, resulting in a linear and very controlled electrical current. This current will remain within a specific range during normal operation, even at peak voltages.

The V421HG34 is a high-performance, two-terminal, lead-free, surface mount metal oxide varistor designed to provide comprehensive protection for a broad range of applications. Its wide surge and voltage range, low clamping voltage, high peak current absorption, and fast response time make it suitable for demanding high-density applications and harsh operating environments. It is an ideal solution for providing effective surge and over-voltage protection for telecommunications, industrial machinery, consumer electronics, and many other high-tech products.

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