V39ZS3

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TVS (Transient Voltage Suppressor) is an electrical and electronic component used to protect sensitive electronic equipment from sudden power surges. TVS components act as a shunt device, diverting excessive voltage away from the protected equipment. Varistors, also known as MOVs (Metal Oxide Varistors) are probably the most widely used type of TVS component and are used to protect against transient voltages.

V39ZS3 is one such MOV from a family of overvoltage protection products offered by Vishay Intertechnology. This is a non-polar device that provides protection against line transient overvoltage of up to 500W peak, and is suitable for use in AC, DC and pulsed DC applications.

V39ZS3 is a bidirectional semiconductor device that operates on the principle of self-adjustment, without the need for any additional external current limiting components. The device operates in two distinct modes depending on the intensity and speed of the transient voltage. In the low intensity/high speed mode, the device operates as an over-voltage protection switch. When the transient voltage increases beyond the limits of safety for the protected components, the MOV device switches from its low impedance to a high impedance state, effectively diverting the excess voltage away from the protected equipment.

In the high intensity/low speed mode, the device operates as a voltage limiter. Here, the instantaneity of the device enables V39ZS3 to respond to high intensity transients by self-adjusting its voltage clamping force to limit transients to safe levels. This allows it to arrest high voltage spikes or dips and other disturbances quickly and efficiently.

V39ZS3 is designed for use in a variety of industrial and consumer applications, including AC/DC power supplies, automotive systems, telecommunication systems, personal computers, appliances, and industrial control systems. The device is relatively inexpensive, highly reliable and offers excellent protection for equipment.

V39ZS3 devices can also be used to provide surge protection for data lines, protecting against ESD (electrostatic discharge) and EFT (electrical fast transients) events. The device is also suitable for protecting against voltage transients produced by electrical motors, induction heating and welding equipment.

V39ZS3 has a wide operating temperature range of -55°C to 125°C, making it suitable for use in a varied range of extreme environmental conditions. The device also has an extended voltage rating of up to 600V, making it suitable for use in high power applications.

Overall, V39ZS3 is an excellent MOV device and offers good protection against transient voltages. As this is a bidirectional device, it can also be used to provide protection against both high and low voltage transients. The device is also relatively inexpensive, highly reliable and can operate in a variety of extreme environmental conditions. This makes it an ideal solution for protecting sensitive electronic equipment from sudden power surges.

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