V22RA16

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TVS - Varistors, MOVs

A Varistor, or Voltage Dependent Resistor (VDR), is a two-terminal electrical component that exhibits a non-linear electrical resistance when exposed to a voltage over a certain threshold. Varistors are commonly used in electronics to protect circuits from overvoltage transients in the same way that MOVs (Metal-Oxide-Varistors) are used.

The V22RA16 Varistor is an ideal varistor solution for industrial and other environments that are subject to frequent electrical noise interference, overvoltage transients, and other power-related abnormalities. With its low inherent clamping voltage and high temperature range, the V22RA16 ensures reliable protection in even the harshest conditions.

The V22RA16 is a two-terminal, surface-mount, three-piece construction varistor that is available in seven different voltage ratings (including 9V, 14V, 16V, and 20V). This Varistor can be used in applications such as data and signal protection, power supply circuits, and motor control circuits, amongst others.

The working principle of the V22RA16 is fairly simple. Due to its zinc-oxide construction, the Varistor exhibits a non-linear, negative resistance characteristic, which is inversely proportional to the applied voltage. When the voltage on the Varistor exceeds the specified threshold voltage (Vclamp), the Varistor acts as a resistor, allowing a limited amount of current to pass through. This current is then partially lost in the Varistor resulting in a voltage drop across the V22RA16 that effectively clamps the voltage - hence the name \'clamping Varistor\' - and restoring it to a safe level.

In addition, the V22RA16 offers excellent surge dissipation capability and EMI/RFI suppression capabilities, making it an ideal solution for applications such as appliances, toys, hand-held communication and industrial electronics, and other fields. With its wide operating temperature range from -40oC to 85oC, V22RA16 is also capable of effective performance in extreme temperature conditions.

The V22RA16 Varistor also offers superior surge capabilities. With an 8/20us surge waveform, the V22RA16 can provide up to 40 Joules of protection, which is more than enough to protect most circuits from possibly damaging transients.

In conclusion, the V22RA16 Varistor is an excellent choice for applications that require reliable protection from overvoltage transients, electrical noise interference, and other power-related abnormalities. The Varistor\'s low inherent clamping voltage and its high temperature range make it an ideal fit for various industrial and consumer applications, while its excellent surge dissipation capabilities and EMI/RFI suppression capabilities make it a perfect solution for protecting sensitive electronics.

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