LC90A

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Transient Voltage Suppressors, or TVS diodes, are electronic devices that help protect against overvoltage transients that can cause momentary power surges. The LC90A is a form of TVS diode that is specifically designed to be used in applications that require considerable power levels, as it can withstand up to 900 watts of wattage with a working voltage of 825 Volts. This diode is able to absorb and disperse the increased power without creating a lasting damage to the appliances that are connected to them.

The LC90A is typically used in applications where high surges of power are a common occurrence. Common instances where this diode could be used are in industrial/commercial settings, in situations involving welding equipment and heavy machinery. The diode can also be used in larger electric motors where the current can reach particularly high levels. In addition, unlike regular fuses, using TVS diodes such as the LC90A can help to significantly reduce circuit size as the diode can be soldered directly onto a circuit board, without the need for external fusing.

The working principle of the LC90A can be best described as being ‘bidirectional’. This means that it is able to not only absorb mismatches in the current on one side, but also on the other. This makes it more versatile than regular ‘unidirectional’ diodes, which only absorb mismatches on one side. Additionally, as the diode is bidirectional, it is able to absorb both positive and negative pulses without impacting the working of the circuit.

The way the LC90A is able to do this is quite complex but, in a nutshell, it works by redirecting any excess voltage back to the power source. The diode contains a junction that is designed to collect and resist the sudden increase in current, thereby dissipating the voltage and prevent it from damaging the circuit. The diode only initiates at the moment of exceeding the chosen value of voltage.

The LC90A also contains a ‘low leakage’ feature which helps to prevent residual current from entering a circuit even after the initial spike of voltage has subsided. This prevents further harm from being done as the resistive current is dispersed without the need for another surge of voltage.

The LC90A is a popular television for a wide range of applications and is an excellent choice for situations that require supreme protection against overvoltage transients. This diode’s bidirectional principles and low leakage features make it the ideal choice for applications that require power levels that are higher than those of regular diodes. Moreover, its flexibility, versatility, and reliability means that it has become an invaluable tool in managing power surges.

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