P4SMA82CAHE3/61 Circuit Protection

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TVS (Transient Voltage Suppressor) diodes are essential components in protecting sensitive electronic circuits from overvoltage and surge-induced transients that can cause permanent damage to the system. The P4SMA82CAHE3/61 is a bi-directional transient voltage suppressor diode with a diode forward voltage of 6.3 volts and low capacitance of 0.15 pF. This device is an ideal solution to protect sensitive electronic devices and power supplies from transient voltage events, including surges and ESD (electrostatic discharge).

The P4SMA82CAHE3/61, like other transient voltage suppressor diodes, can be used in various regions that require protection from damaging overvoltage transients. Common application types include automotive, medical, aerospace, and consumer electronics. In addition, this diode is suitable for situations where wide operation temperature range with low capacitance and high clamping voltage is needed, such as high-speed data lines or pulse applications.

The basic working principle of the P4SMA82CAHE3/61 is the same as that of other TVS diodes. It is designed to protect devices from overvoltage transients by clamping the voltage at a certain level. When a transient overvoltage event occurs, the clamp action of the P4SMA82CAHE3/61 will trigger and limit the maximum allowable voltage level to a safe value.

When a positive overvoltage transient occurs, the depletion layer of the reverse-biased P-N junction of the diode is increased due to the increased voltage. This depletion layer increases the protection capability of the diode, increases its reverse breakdown voltage, and clamps the voltage at a safe threshold. Similarly, when a negative overvoltage transient occurs, the diode clamps the voltage level by utilizing the avalanche breakdown. The P4SMA82CAHE3/61 is designed to provide up to an 8kV ESD protection.

When the voltage transient exceeds the breakdown voltage of the P4SMA82CAHE3/61, the bi-directional clamping of the TVS action can provide the protection needed to reduce overvoltage spikes to a safe level. The suppression of the transient is done through the combination of its high surge rating and low capacitance. The P4SMA82CAHE3/61 is able to provide low-capacitance, robust protection in low and high temperature environments, making it an ideal solution for automotive and aerospace applications.

In summary, the P4SMA82CAHE3/61 is a robust TVS diode with a low capacitance that is especially designed for the protection of sensitive electronic devices from overvoltage transients. Its bi-directional clamping ability is designed to reduce overvoltage transients to a safe level and also offer high surge protection and low-capacitance in both low and high temperature environments. This makes the P4SMA82CAHE3/61 an ideal solution for the protection of sensitive electronics in many different applications, including automotive, aerospace, medical, and consumer electronics.

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