V27MA1S

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Varistors are applied devices that protect sensitive electronic components from electrical transients by transferring excess surge voltage across a large-value resistor. This low-level resistance is usually in the form of a resistor, or a group of resistors, which are commonly referred to as an "arrangement". Such an arrangement is called a Varistor, and is sometimes referred to as a Voltage Dependent Resistor (VDR). Varistors are commonly used in the protection of sensitive electronic components such as transformers, motors, and other semiconductor components. By absorbing much of the transient energy before it reaches the component, varistors can protect against component failure due to voltage spikes.

A V27Ma1S varistor is a disc-shaped voltage dependent device that can provide protection to any circuit subjected to overvoltage or transient voltage by diverting harmful electrical transients away from the sensitive electronic components. The varistor has a very low resistance at normal levels of electrical sparks. It is able to block all voltages, however, providing protection against overvoltages and transients. The V27Ma1S varistor is generally available in a variety of sizes and shapes to fit various applications.

The working principle of V27Ma1S varistors is based on their tri-modal behavior. The varistor\'s tri-modal behavior is created when three different band gaps are employed. The first band gap functions as a switch, causing the varistor to "break-over”. This break-over is the varistor\'s reaction to a specific over-voltage such as a voltage surge or electrical spike. Once the break-over occurs, the varistor then acts as a resistor providing a low resistance path for the electrical surge to ground. The second band gap acts as a limiter, regulating the voltage flow through the varistor and preventing additional, excessive voltage from going through. Finally, once the third band gap is reached, the varistor behaves like an open switch and the varistor is completely discharged.

V27Ma1S varistors are typically used for protection against overvoltage and noise transients in printed circuit board (PCB) design, solid-state devices, power supplies, industrial equipment and consumer electronic applications. A typical example of these applications is the protection of integrated circuits from over-voltage in switching power converters. V27Ma1S varistors can also be used to smooth out the AC line display in switching power supplies, helping improve system performance.

The V27Ma1S varistor has several features that make it ideal for a variety of applications such as design flexibility, reliability and guaranteed performance. The varistor has low leakage current, high surge absorption, and low line voltage distortion. The design of the varistor also allows it to have better robustness as compared to traditional varistors. The V27Ma1S varistor also has a low mounting profile which allows it to be used in limited board space applications. In addition, the high surge absorption rated varistor can be used in high temperature applications.

In conclusion, the V27Ma1S varistor is an indispensable tool in many types of electrical and electronic applications, providing protection against overvoltage and transients. Its tri-modal behavior allows for better protection of sensitive electronic components, and its design flexibility makes it viable for many applications. Its reliable performance and guaranteed performance ensure that it will always perform as expected.

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