P4SMA400AHE3_A/I Circuit Protection

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TVS Diodes can be used in a variety of applications for maximum noise suppression and protection from electrostatic discharge (ESD). The P4SMA400AHE3_A/I TVS Diodes is a popular type of TVS Diode that provides high reliability ESD protection in cell phone and other hand-held equipment.

The P4SMA400AHE3_A/I is a 400 W unidirectional (transient voltage suppressor) diode. This type of diode is designed for maximum noise suppression and protection from electrostatic discharge (ESD). It provides a low clamping voltage of 4.4 V, which is ideal for providing reliable ESD protection against high voltage electrostatic discharges in portable equipment.

The P4SMA400AHE3_A/I contains a silicon rectifier diode, PN junction, silicon oxide cab and a protection plate constructed on a chip of high grade aluminum. This type of diode has two terminals, an anode and a cathode, which are connected to the substrate or the circuit. The diode is designed to protect the delicate circuits from high-energy transient voltage spikes. In order to provide the highest degree of protection against ESD, it is necessary to place the diode very close to the ESD-sensitive circuit.

The working principle of the P4SMA400AHE3_A/I TVS Diodes involves a mechanism that takes place when the diode is exposed to a transient voltage spike. When the external input voltage exceeds the breakdown voltage of the diode, it starts to conduct the transient current through the diode. This current is limited by the internal impedance of the diode. When the current through the diode starts to diminish, the current flow will be redirected through the anode and cathode, which intercepts the current and drains it to the ground. As a result, the voltage across the diode will return to the breakdown voltage.

The P4SMA400AHE3_A/I is designed to provide reliable ESD protection for sensitive components in cell phone, PDAs, and other hand-held electronic devices. It is used in low power circuits that require short response times for ESD protection. Its low clamping voltage makes it ideal for use in applications where devices may only be exposed to small discharges. The P4SMA400AHE3_A/I is suitable for a wide range of applications including high-speed digital signal processors, communications and fiber-optic ICs, computer disk drive ICs, consumer electronics and portable electronics.

The P4SMA400AHE3_A/I TVS Diode is used mainly in cell phones and other hand-held equipment. It is an effective way to provide reliable protection against ESD and other transient voltage spikes. These diodes provide maximum noise suppression and ESD protection and are designed to be placed very close to sensitive ICs or other components. They are low power devices with a short response time and are suitable for a wide range of applications.

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