ECLAMP1002A.TCT Circuit Protection

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The ECLAMP1002A.TCT is a transient voltage suppressor (TVS) of mixed technology. It is designed for ESD and electrical overstress (EOS) protection in applications such as datacom, communications, and telecommunications.

The ECLAMP1002A.TCT is constructed with a combination of proven technologies: a thyristor supported by a semiconductor array, a metal oxide varistor (MOV), and a silicon diode. It offers the convenience of a single package to integrate multiple modes of protection.

The principle of operation for the ECLAMP1002A.TCT is that the thyristor is used as a clue to determine when the voltage across the ECLAMP1002A.TCT is approximately 5 V (the exemplary threshold value). When the thyristor is triggered, the current is diverted to the MOV, causing it to clamp the voltage. The MOV also provides ESD protection by conducting current bursts up to several thousand Amps.

The ECLAMP1002A.TCT also employs a silicon diode that is used for EOS protection. When the voltage across the ECLAMP1002A.TCT exceeds the diode turn-on voltage, the diode begins to conduct. This reduces the peak voltage to a safe level, ensuring the integrity of the protected circuitry.

The ECLAMP1002A.TCT is offered in an industry-standard SOT-23 package for ease of use. It can operate across multiple temperature ranges, with a maximum junction temperature of 150°C and a storage temperature of -65°C to 150°C. In addition, it features reverse polarity protection with a low clamping voltage of 5 V, as well as high peak pulse power capability of 500W.

Overall, the ECLAMP1002A.TCT is an excellent example of how multiple technologies can be combined for superior protection. By combining conventional ESD protection, such as thyristor and MOVs, with EOS protection such as the silicon diode, the ECLAMP1002A.TCT provides a robust and reliable solution for applications that require both ESD and EOS protection.

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