SMCJ24

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TVS (transient voltage suppressor) diodes are an important component in modern power-protection circuitry. SMCJ series of TVS diodes are specially designed for 400W (8/20μs) and 1000W (10/1000μs) high peak pulse power applications. They have built-in thermal and avalanche-clamping protection, providing system-level protection, small size, and very fast response time. They come in various packages including SMCJ24, which is designed for high-density mounting.

The main application of SMCJ24 diode is to provide high protection level against transient over voltages in communication system, computer and controller based system, and automotive system. It can be used to protect unit-level circuit, like ICs, communication ports, signal lines and power supply units, from over-voltage damage. SMCJ24 is designed with a low-standoff voltage, which can handle high-transient surge and clamp the voltage at desirable levels to protect the upstream circuits.

The working principle of SMCJ24 is simple. The diode is connected to the input power supply in reverse-mode. When a voltage surge reaches a level higher than the diode’s breakdown voltage, it starts to conduct, reducing the voltage seen at the electronic device. This power surge, instead of damaging the device, is now conducted away without disrupting operation, since at the same time the energy is dissipated as heat. As soon as the surge ceases, the diode switches-off and the device operates normally again.

SMCJ24 diode is made from a highly reliable diode chip using high quality substrate and external protective components. The diode has a built-in mechanism that provides a fast response time under over-voltage conditions and a patented mechanism that provides enhanced thermal protection from short circuit conditions. The diode is very small in size and can be mounted directly on to the circuit board or used with a plug-in socket depending on the application. This helps save space and keep the board tidy.

Overall, SMCJ24 TVS diodes are a great component for use in applications that demand high-level protection from transient over-voltages. Its small size and simple design make it easy to install and use, making it a very cost-effective solution for system-level protection. It is designed to provide a very fast response time and reliable protection for sensitive electronic circuits, making it an excellent option for a variety of applications.

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