MXLSMBJ90CAE3

TVS (transient voltage suppressor) diodes are solid-state devices, also known as surge absorbers, protectors, and protectors. Designed mainly to protect electronic components from damage due to excessive voltage surges, a TVS diode not only acts as an unidirectional electrical device but also as part of an electrical circuit, like a capacitor. The MXLSMBJ90CAE3 is one such device aimed at providing protection against electric overvoltage. The application field of the device and its working principle are discussed in this article.

Built using Silicon Avalanche Diodes, the MXLSMBJ90CAE3 has been designed to replace the Surge Barriers and the Unidirectional Transient Voltage Suppressors, being an SC70 3-pin Transient Voltage Suppressor (TVS). The device uses two protection circuits, namely the normal reverse-biased diode with a breakdown voltage of 6.3V and a Zener diode with maximum power of 500W and a breakdown voltage of 14.5V. In this way, the device acts as a voltage regulator by preventing any transient voltage exceeding the specified values. This makes it ideal for use in circuits suffering from power anomalies or pulses, such as those in automotive applications.

The working principles of the MXLSMBJ90CAE3 are relatively simple. Basically, when a voltage surge appears on the input port, the device attempts to absorb the energy from the surge. The capacitor and Zener diode then create a ‘clamp’ which limits the voltage to the specified values. The MXLSMBJ90CAE3 then stores the energy, and the capacitor continues to provide a steady voltage output, while the Zener diode quickly dissipates the absorbed energy into the load. This keeps the voltage from increasing beyond the specified values, protecting the electronic components.

The MXLSMBJ90CAE3 is most commonly used for automotive application. Its robust design is highly suitable for situations where frequent surges and disturbances are expected, such as in power lines during automotive load dumping. Additionally, it can also be used in communication networks, medical equipment, and industrial machines, where transients and disturbances may occur when voltage regulation is necessary.

In short, the MXLSMBJ90CAE3 is an ideal transient voltage surge protector for automotive circuits, communication networks, and other application fields where high-power transients are expected. Its simple yet robust design, and its ability to absorb voltage surges and dissipate the absorbed energy, makes it a practical solution for dealing with transients and voltage disturbances.