SMB8J18CA-E3/52

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TVS - Diodes, or transient voltage suppression diodes, play a key role in protecting electronic components, systems, and people from the destructive effects of overvoltage. The SMB8J18CA-E3/52 transient voltage suppressor diode is an example of a modern, high-performance, surface-mount TVS diode, and has a wide range of applications and uses in modern electronics.

Physical Features: The SMB8J18CA-E3/52 is a relatively small TVS diode with a size of 8.0 mm by 10.0 mm, or approximately ⅜ of an inch by 6/8 of an inch. It is made of a glass-passivated die, encased in a molded epoxy body. The lead has a copper finish and is defined as a one-piece flat lead with round corners. It offers 700 VRMS stand-off voltage, 20 KA peak pulse power dissipation and a maximum leakage rated of 33 uA.

Application Functions: These unique TVS diodes are built for transient protection, providing advanced protection in applications where high-energy spikes can damage sensitive components. They can be used to protect high-end electronics products such as cell phones, tablets, laptop computers, audio equipment, and more. They are especially useful in applications including surge protection on AC or DC power systems, surge protection on data and communication lines, and protection on solid-state relays.

Working Principle: The working principle of the SMB8J18CA-E3/52 is to dissipate excessive energy in the form of a current short circuit and then quickly re-establish normal operation once the surge has been removed. It operates in two basic modes. In the forward-biased mode, the TVS diode withstands high-voltage transients and absorbs the surge energy. In the reverse-biased mode, it will try to short-circuit the excessive surge energy and quickly clamp the voltage below the peak operating voltage. It functions as a two-way valve that will quickly open and close depending on the voltage level.

Overall, the SMB8J18CA-E3/52 is a reliable, efficient, and economical solution for surge and transient protection needs in a wide range of industrial and commercial applications. It is an effective way to protect expensive and sensitive components from destruction due to overvoltages. With its compact size and robust performance, the SMB8J18CA-E3/52 TVS diode is an excellent device for protecting high-end electronics products from the effects of overvoltage.

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