ERZ-E05E221

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Transient Voltage Suppression (TVS) devices are specialized electronic components designed to protect delicate electrical components and circuits from voltage transients. The vast majority of these protection components are uni-directional, meaning that they only protect against one type of current flow. The ERZ-E05E221 TVS is an example of such a component, designed specifically to protect against high voltage transients.

The ERZ-E05E221 is a bidirectional, electrically-isolated silicon based Varistor (also known as a Metal Oxide Varistor - MOV), which provides optimal protection to sensitive electrical components against both overvoltage and undervoltage conditions. The ERZ-E05E221 is particularly suited to applications where fast response time, low leakage, low capacitance, and low temperature coefficients are required.

The ERZ-E05E221 acts as a voltage-dependent resistor, where the resistance is dependent on the applied voltage. When the voltage is below its threshold, the resistance of the ERZ-E05E221 is high, allowing only a small amount of current to pass through. As the voltage exceeds the threshold, the resistance gradually decreases, allowing larger amounts of current to pass through until it reaches its peak actual let-through current.

The peak actual let-through current (Ip) of the ERZ-E05E221 is one of its key characteristics and is typically between 1.5A and 17A. Depending on the application, the ERZ-E05E221 is available with different Ip ratings. The maximum clamping voltage (Vc) of the ERZ-E05E221 is typically between 11V and 65V and depends on the applied peak current.

The ERZ-E05E221 can be used in a variety of applications, including automotive, consumer electronics, UPS systems, and industrial equipment. In automotive applications, it can be used to protect delicate electronic components from voltage transients caused by lightning strikes or inductive loads. In consumer electronics, it can be used to protect circuit boards from power-supply overvoltage conditions. In industrial equipment, it can be used to protect components from voltage spikes caused by switching power supplies.

Additionally, the ERZ-E05E221 can be used in applications where a reduced surge energy level is required. It can be connected in parallel with other TVS components to achieve a break-before-make configuration, which significantly reduces surge energy level and protects highly sensitive components.

The ERZ-E05E221 is a reliable, cost-effective solution to protect sensitive electrical components and circuits from transient voltages. It provides protection against both overvoltage and undervoltage conditions, with a fast response time, low leakage, low capacitance, and low temperature coefficient. Its versatile design makes it suitable for a wide range of applications, from automotive to industrial.

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