P4SMA440

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TVS (Transient Voltage Suppressor) diodes are designed to protect sensitive electronic components from damage due to high voltage transients and surges. P4SMA440 are TVS diodes, specifically designed to protect sensitive electronic components from overvoltage transients and surges.

The P4SMA440 is particularly well-suited for protecting electronic components from high voltage transients and surges in automotive and telecom applications, as it can withstand up to 4,400W of surge power. In addition to its surge protection capabilities, the P4SMA440 provides robust ESD protection of up to 25kV. It is also an ideal solution for protecting low-voltage applications, such as microcontrollers, LCD panels, and digital cameras.

The P4SMA440 is also designed with EMI (electromagnetic interference) suppression in mind. It has an increased standoff voltage, low leakage current, and fast response time, helping it to effectively suppress EMI even under high current surges and transients in the application configuration. It is also RoHS (Restriction of Hazardous Substances) compliant, which helps to reduce environmental impact and cost.

The working principle of a P4SMA440 TVS diode is that it is designed to clamp the voltage to a safe level in the event of an overvoltage transient or surge. The device is connected between the power supply and the load, and is rated to get activated when the voltage reaches 4.6 volts for a single diode or 9.2 volts for a double diode. When the voltage reaches the rated threshold, the P4SMA440 then immediately diverts the current, thus helping to protect the components connected to the power supply from damage due to the overvoltage surge.

In summary, the P4SMA440 is a robust surge protection device that is particularly well-suited for protecting sensitive electronic components from high-voltage transients and surges in automotive and telecom applications. It offers robust ESD protection of up to 25kV, as well as excellent EMI suppression and fast response time. It is also RoHS compliant, further increasing its cost-effectiveness and environmental impact.

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