SA40C-E3/73

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TVS - Diodes have been used widely in the market for several years due to their wide application field and their impressive working principles. The purpose of a TVS diode is to ensure that electrical equipment is adequately protected against overvoltage. SA40C-E3/73 is one of these amazing products. It provides superior protection during extreme overvoltages.

The SA40C-E3/73 diode has a breakdown voltage which is set at 40 volts. This ensures that any voltage that exceeds the 40-volt mark will be absorbed by the diode. Consequently, the device downstream of the diode, which is the target device, is protected from overvoltage which has been legislated for in many countries. In addition, the device also has an impressive surge current capability of 12.1A that is generated through a 5 ms pulse giving it a superior ability to handle short-term voltage surges and transients.

The SA40C-E3/73 diode also has a very fast response time of less than 1 nanosecond, which means that it can act within a fraction of a second to absorb any high voltage or spikes that appear in the circuit. This is of great value to circuitry as without this protective feature, there is the potential of serious damage should a voltage spike occur. The device also has an attractive thermal resistance of just 131°C/W, which allows the application of this device in high-powered circuitry without the need for large heat dissipation units.

In terms of its working principle, the SA40C-E3/73 diode is based on PN junction technology and contains two dissimilar material layers. This creates a two-layer field effect transistor which ensures that when a voltage exceeds the 40-volt mark, a breakdown of the PN junction occurs and the breakdown voltage is absorbed instead of making its way to the downstream component. The device fits perfectly into a 3rd-party Electrostatic Discharge (ESD) protection package. The package is a two-terminal type with a current absorption capability of up to 12.1A, a very impressive result!

All in all, the SA40C-E3/73 is a great device with an impressive working principle and a wide application field. The diode’s ability to absorb voltages of up to 40V and handle surge currents of up to 12.1A make it the ideal choice for those seeking exceptional surge protection for any of their electronic equipment. In addition, the low thermal resistance of the device makes it suited for use in high-powered circuitry. All these features and more make this diode the perfect companion for any electrical designer.

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