V68ZA20

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TVS - Transient Voltage Suppressor (TVS) devices and Metal Oxide Varistors (MOVs) provide effective protection against electrostatic discharge (ESD) and transient voltage surges. A V68ZA20 is a popular and widely used TVS device that looks like a small disc and can be soldered directly into a circuit board. An understanding of the V68ZA20 application field and working principle is important in order to make the best use of this device.

The V68Za20 is a unidirectional transil, meaning that it is designed to protect against transient over-voltages of one polarity only, typically during electrostatic discharge. It is capable of protecting a variety of different types of devices, including high-speed data circuits, telecommunications systems, and power supplies. The design is simple, and the device is easy to integrate into a circuit board.

In terms of its working principle, the V68ZA20 is designed to be triggered by electrical transients of a particular magnitude. Once triggered, the device will \'clamp\' the voltage of the circuit to which it is connected, limiting the magnitude of the transient. The device can be triggered by voltages as low as 5V and as high as 30V. As such, it is suitable for use in a wide range of applications.

The actual bursting of the V68ZA20 occurs when the applied voltage is in excess of the device\'s rated reverse breakdown voltage of 30V. At this point, the device will begin to \'clamp\' the applied voltage to the breakdown voltage, thereby limiting the magnitude of the transient. The device is also designed to withstand repetitive bursts at rated voltages and temperatures without degrading.

In addition to its ability to limit transient voltages, the V68ZA20 is designed to dissipate very little energy when triggered. This makes it ideal for use in applications that require low power transil protection. Furthermore, the device is designed to have both a low capacitance and a low series inductance, making it suitable for use in high-speed data circuits.

The V68ZA20 can also be used in combination with other components to create a more comprehensive surge protection system. For instance, the device can be connected to a DC power source or a fuse in order to provide additional protection against over current or over voltage conditions. Additionally, the device can be connected in series with an MOV in order to provide additional protection against line transients.

In conclusion, the V68ZA20 is a versatile and effective TVS device that is designed to protect against electrostatic discharge and transient voltage surges. The device is relatively easy to integrate into a circuit board, and it has a low capacitance and low series inductance, making it suitable for high-speed data circuits. Additionally, the device can be used in combination with other components to create a more comprehensive surge protection system.

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