EPS17 Circuit Protection

Series:	*
Part Status:	Active
RoHS Status:	RoHS non-compliant

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EPS17 Application Field and Working PrincipleEPS17 is a Transient Voltage Suppressor (TVS) Diode used for protection against ESD and surge voltage. It is a two-terminal silicon device specially designed to absorb large voltage transients and provide over-voltage protection in a variety of sensitive electronic circuits. EPS17 is especially suitable for sensitive electronic devices such as laptop computers, tablet PCs, mobile phones, and other consumer electronic products. Its small and light size makes it ideal for applications where space and weight requirements could be limiting factors. The working principle of EPS17 is based on a Zener diode. A Zener diode is a special diode which can conduct in both the forward and reverse directions under certain conditions. When a reverse voltage is applied to it, it breaks down and conducts in the reverse direction, limiting the voltage across it to a certain value, the Zener voltage.When a surge voltage that is higher than the Zener voltage is applied to the device, the EPS17 diode breaks down and conducts in the reverse direction. This results in the voltage across the diode being limited to the Zener voltage, thus providing over-voltage protection. This process is known as "avalanche breakdown". The EPS17 is also designed to limit the current through the device. This helps to prevent the destruction of the device or the connected circuit. The EPS17 diode can be used in a number of different application scenarios, including ESD protection, over-voltage protection, surge current protection, line termination, etc. In ESD protection applications, EPS17 is used to limit the voltage applied to a sensitive electronic circuit when it is subjected to an ESD shock. It helps to prevent the destruction of the circuit. The maximum ESD over-voltage, also known as the ESD breakdown voltage, is typically around 24V, although this can vary depending on the device type. In over-voltage protection applications, EPS17 is used to protect a sensitive electronic circuit from voltage surges caused by power or lightning transients. As mentioned before, the diode breaks down and conducts in the reverse direction, limiting the voltage across it to the Zener voltage. This helps to protect the circuit from damage. In surge current protection applications, EPS17 is used to limit the surge current that flows through the device. This helps to protect both the device and the connected circuit from destruction. The EPS17 is also used in line termination applications, where it is used to absorb reflections on a transmission line and reduce signal noise. As can be seen, the EPS17 is a very versatile device with a wide range of applications in the field of ESD and surge voltage protection. The device’s small and light size also make it ideal for applications where space and weight is a limiting factor.

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