PESD0402-140 Circuit Protection

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TVS diodes, or transient voltage suppressors (TVS), are essential components of any electronic circuits that must withstand large voltage transients. PESD0402-140 is a surface mount low capacitance bidirectional TVS diode. It is designed to protect sensitive electronic components from voltage transients caused by load-switch turn-on/turn-off, lightning, and other surges. It is suitable for protecting a wide range of digital IO interfaces, such as LVDS, USB, eSATA, HDMI, and Thunderbolt.

The PESD0402-140 is housed in a Class-2 ceramic body measuring 0.4mm x 0.2mm. It has low leakage current and low capacitance, making it ideal for high speed digital data line protection. It can withstand peak power dissipation up to 140W. The device also offers great ESD protection, with IEC Level 4 rated performance at over 8kV.

The working principle of the PESD0402-140 is simple and straightforward. The diode features a bidirectional architecture that allows it to react quickly to changes in voltage. When the incoming voltage increases beyond a certain threshold, the diode clamps the voltage to a safe level and directs the excess current away, thereby protecting the components from damage. When the voltage drops, the diode reopens and allows the current to resume its normal flow.

The device is extremely versatile and can be used in a variety of applications. It can be used to protect wired power and data lines from power surges, allowing it to be safely used in a wide range of equipment such as computers, televisions, game consoles, and other consumer electronics. The device can also be used in automotive modules and even on board aircrafts to protect sensitive electronics from voltage transients.

The PESD0402-140 is an ideal choice for protecting sensitive electronic components from transient voltage surges. Its nominal working voltage is 5.0V with a maximum operating voltage of 20V. It provides excellent ESD protection with IEC Level 4 ratings at over 8kV. It offers low leakage current and low capacitance, allowing it to be used in high-speed digital data line protection. The device is able to withstand peak power dissipation up to 140W, making it perfect for a wide range of applications.

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