P4SMA91A M2G Circuit Protection

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TVS (Transient Voltage Suppressor) diodes are widely used in electrical engineering to provide protection against transient voltage spikes. The P4SMA91A M2G is a unidirectional TVS diode specifically designed for use as an overvoltage or overcurrent protection device. This device can be used for protection of I/O interfaces, precision and signal lines, or any other system within the -55V ~ 175V working voltage range.

The P4SMA91A M2G features an ultra low on-state resistance of 0.011ohm, allowing for minimal voltage fluctuation and power dissipation when conducting a current. The device’s reverse voltage rating is up to 175V, making it suitable for high-voltage applications. The device is provided in a small SMA package, with its dimensions measuring 1.3mm x 1.4mm x 1.3mm, making it ideal for space-constrained designs.

The device is designed to provide protection against transients up to rated pulse power handling with a peak pulse current rating of 25A (8/20μs pulse). The clamping voltage (VCL) of the device increases as the working voltage increases, providing a greater degree of overvoltage protection. Additionally, the P4SMA91A M2G provides a high-surge rating, with a peak power rating of 105W (8/20μs pulse) making it suitable for protecting circuits from overcurrent transients.

The device’s primary application is in I/O interface protection. In this application, the device works to prevent the movement of electricity between system components when external electric shocks or transients are present. It does so by providing overvoltage protection and clamping the voltage, limiting the current that can flow through the protected circuit. Thus, the device reduces the possibility of system damage due to transients or electrostatic discharge (ESD) events.

In addition to I/O interface protection, the P4SMA91A M2G can also be used for protection of precision signal lines and other systems within the -55V ~ 175V working voltage range. This device is designed to provide high-surge and overvoltage protection for circuits and devices from overvoltage transients, reducing the possibility of system or circuit damage.

In summary, the P4SMA91A M2G is a unidirectional TVS diode specifically designed for overvoltage or overcurrent protection. It is suitable for I/O interface, precision signal line, and other systems within the -55V ~ 175V working voltage range. The device features an ultra low on-state resistance, a reverse voltage rating of up to 175V, and a peak power rating of 105W (8/20μs pulse). This device is designed to provide a high level of overvoltage protection for circuits, reducing the possibility of system damage due to transients or ESD events.

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