MXLSMBG18AE3 Circuit Protection

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TVS – Diodes, commonly known as Transient Voltage Suppressors, are electronic components designed to provide surge protection from transient voltage and electrostatic discharges (ESD). The MXLSMBG18AE3 is a TVS diode specifically designed for use in telecommunications as a secondary overvoltage protection device. This diode has a reverse stand-off voltage (VBR) ranging from 17.5V to 19.5V and a peak pulse power of 1500W, making it suitable for protecting telephone lines carrying voice or data.

The basic principle of a TVS diode is that it will clamp the voltage on its input to a safe maximum level. When an over-voltage event occurs, usually from an ESD or surge, the leading-edge current is diverted to ground instead of passing through connected circuits. This prevents any further increases in the input voltage which would be damaging to the connected circuits.

The MXLSMBG18AE3 is a bi-directional TVS diode designed to protect against overvoltage events on both positive and negative terminals. It has a symmetrical clamping capability which provides better protection against both negative and positive surges. The device is also designed to have a fast response time, meaning it can protect against even transient voltage transients.

In order to protect against ESD events, the MXLSMBG18AE3 employs a special nonlinear zener breakdown voltage. This zener breakdown voltage provides greater levels of protection for delicate telecoms equipment, while still allowing signal levels to pass through without distortion or interference.

The design of the MXLSMBG18AE3 incorporates a variety of safety features such as a built-in thermal cut-off mechanism. This ensures that the device will not be damaged by sustained high temperatures, making it suitable for use in warm climates. The device also has a peak pulse withstand capability of 1500W which mitigates the risk of catastrophic failure for connected electronics.

The MXLSMBG18AE3 boasts the ability to handle a range of reverse leakage currents of up to 50mA, while still providing reliable overvoltage protection. This is achieved by incorporating a specialized avalanche breakdown structure which reduces the chances of false triggering due to small reverse leakage currents.

To ensure compliance with all relevant industry standards, the MXLSMBG18AE3 has been tested and verified to military standards. It also meets the requirements of ESD standards for portable equipment such as mobile phones, Bluetooth headsets and smartphones.

The combination of its small size, robustness, high performance and excellent design make the MXLSMBG18AE3 an ideal choice for primary overvoltage protection for any telecoms application. With its wide operating temperature range and fast response time, it is an excellent option for protecting valuable telecoms equipment from transient voltage and ESD events.

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