TPSMA20AHE3_B/I Circuit Protection

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TVSs (Transient Voltage Suppressors) are widely used components for protection against electrostatic discharge (ESD) events. TVS diodes prevent damaging overvoltage transients by providing a controlled junction breakdown - either short or open circuit - to protect other components and circuits. The TPSMA20AHE3_B/I is a recently released TVS diode from Vishay which features a drain current rating of 20A, a maximum transient peak pulse power dissipation of 1kw and a voltage rating of 16V.

The TPSMA20AHE3_B/I is formulated for use in industrial, commercial building, and residential applications and is suitable for blocked-dryer laundry equipment, such as washers and dryers. It\'s drain to source current rating of 20A makes it suitable for consumer electronics as well, providing overvoltage protection for the internal circuits of these devices.

So what is the working principle behind this product and how does it provide protection against electrostatic discharge (ESD) events? The TPSMA20AHE3_B/I is designed to limit the voltage across its terminals to a safe level. During an ESD event, the voltage across its terminals may exceed its voltage rating, increasing the current flow into the device. The device then reacts and quickly conducts a high amount of current to dissipate the excessive voltage across its terminals.

The device’s current conduction capability limits the time spent conducting by immediately collapsing the channel as soon as the ESD event has occurred. This relatively high current carrying capability is the reason why it is suitable for protecting consumer electronics and other devices against ESD events. The device also includes a reverse bias safe operating area (RBSOA), which allows it to conduct current when reverse biased as well.

In addition to providing overvoltage protection, the device also offers a number of other advantages. For one, it has very low capacitance; making it suitable for high speed signal protection and other applications requiring low capacitance. It also features a low on-state resistance, which minimizes the electrical power sent to the load. Additionally, it is manufactured using small geometry transistors, which provides a high degree of integration into other circuits or systems.

The TPSMA20AHE3_B/I, with its impressive performance and range of features, is well-suited for use in a variety of applications. It provides excellent protection against ESD events, dampens high-frequency surges, and safeguards against high frequency ambient noise. With its fast switching time and low capacitance, it can be used for a wide variety of devices and circuits, helping to protect sensitive components from unexpected voltage transients.

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