V751HF34

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The V751HF34 is a voltage-dependent overvoltage protector device from the family of transient voltage suppressors. It is a bi-directional TVS (transient voltage suppressor) diode with a Metal Oxide Varistor (MOV) for noise protection from xDSL applications. It is capable of protecting sensitive electronic equipment, including cable modems, digital set-tops, and peripherals, from transients caused by overvoltage conditions.

The V751HF34 is designed to specifically address the need for harmonics in xDSL lines. The device is a metal-oxide varistor/transient voltage suppressor (MOV/TVS) combination for two-line operation. It provides enhanced response to high frequency and high amplitude transients. The combination of these features makes the V751HF34 highly effective in controlling both low- and high-frequency EMI.

The working principle of the V751HF34 is based on the avalanche effect. It is a bi-directional discrete TVS diode designed for applications that require protection from voltage transients caused by electrostatic discharge (ESD) or electrical over-stress (EOS). With its metal oxide varistor (MOV) protection, the V751HF34 limits the peak voltage to a desired level and ensures that protection is never bypassed. The device offers a fast response time and high capacitance, and it is capable of handling transients up to 8-kV.

The V751HF34 is suitable for use in xDSL applications where reduced noise and overvoltage protection are essential. It is an ideal means of protecting pairs of differential lines from excessive noise and destructive high-energy transients caused by lightning, ESD, and EFT/B. The device provides a high level of protection from ESD and EFT/B for cable modems, digital set-tops, and other sensitive electronic equipment. Its bi-directional features also allow it to provide protection for downstream differential pairs.

The V751HF34 is compact in size and contains a low standby current but is still able to draw several hundred mA surge. The device only has to be mounted to one differential line in order to protect both differential lines. The low capacitance and low inductance of the device allow for a fast response time and a higher frequency of protection.

In conclusion, the V751HF34 is an effective metal oxide varistor/transient voltage suppressor combination that provides protection for xDSL applications. Its bi-directional design and fast response time make it an ideal choice for sensitive electronic equipment and cable modems. Its low standby current and low capacitance/inductance make it suitable for use in any high-frequency EMI protection application.

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