SMAJ78A-E3/5A Circuit Protection

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TVS (Transient Voltage Suppressors) diodes are an essential component of modern-day electronics. They are used in a wide variety of applications to protect against damaging over-voltage transients. In recent years, the SMAJ78A-E3/5A series of TVS diodes have become increasingly popular due to their cost-effectiveness and optimal performance in a variety of applications. This article will provide an overview of the application fields and working principles of the SMAJ78A-E3/5A series of TVS diodes.

The SMAJ78A-E3/5A series of TVS diodes are designed to protect against ESD (electrostatic discharge) risks, as well as electro-magnetic interference (EMI) and over-voltage transients. They are mainly used in power supplies, lightning protection, and surge suppression devices. The SMAJ78A-E3/5A series are particularly useful for high-speed data communication systems, as the diodes offer fast response time and dependable performance.

The SMAJ78A-E3/5A series of TVS diodes are unidirectional devices, which means that they are designed to suppress voltage in one direction only. The diodes are typically packaged in a Surface Mount Device (SMD) form factor, and are available in a range of voltage ratings, which make them suitable for various applications. The voltage ratings of the SMAJ78A-E3/5A series range from 5.7V to 700V.

The working principle of a TVS diode is rather simple. When the device is subjected to an over-voltage transient, it will quickly conduct current across its terminals in order to reduce the voltage to a safe level. The current that flows through the TVS diode will then be dissipated in the form of heat. When the voltage returns to its normal operating level, the TVS diode will stop conducting current and the circuit will remain protected from further voltage surges.

The SMAJ78A-E3/5A series of TVS diodes are an ideal choice for applications requiring fast response time and dependable performance, such as high-speed data communication systems. They are also suitable for a variety of other applications, such as power supplies, lightning protection, and over-voltage protection for electronic systems. Their small size, cost-effectiveness, and wide range of voltage ratings make the SMAJ78A-E3/5A series of TVS diodes a popular choice for a variety of electronic protection applications.

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