MSMBJ36A

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MSMBJ36A Application Field and Working Principle

The MSMBJ36A is a bi-directional TVS diode designed for protection of I/O interfaces in applications needing low capacitance with moderate voltage ratings. The MSMBJ36A is capable of clamping transients to a maximum peak of 36V for voltage transients of less than 8/20µs.

Application Field

The MSMBJ36A is designed for the protection of data and signal lines. It is well-suited for the protection of equipment interfaces, such as Ethernet, USB, audio and video ports. It is also suitable for protection from ESD, EFT and surge events.The MSMBJ36A is well-suited for applications requiring low capacitance protection and moderate voltage ratings. It has an operating temperature range of −65˚C to + 175˚C, allowing it to be used in environments with varying temperatures. The unique vertical design of the device helps reduce the thermal excursions that occur in data and signal applications.

Working Principle

The MSMBJ36A is designed for circuit protection against EOS and ESD. It\'s conceptual design uses a positive temperature coefficient (PTC) thermistor to detect and suppress over-voltage and ESD transients. The component\'s self-discharge technology means that the peak amplitude of the transient is reduced until the rise time of the transient is reduced and ultimately limited to the desired level.The internal design of the MSMBJ36A is such that it only absorbs energy from a transient voltage and not from a DC voltage. When a sufficiently large power transient is encountered at the diode, an internal gate opens and the diode easily passes the current.This is followed by a rapid restoring clamping voltage and then the voltage settles back to its normal level.Due to its design, the MSMBJ36A can protect against a surge from a broad range of voltages and pulses, including ESD, EFT, and lightning. The device is unique because it has limited capacitance, allowing it to be used in applications where capacitance is an issue. The long-term reliability of the device is typically enhanced by its low leakage current and low temperature coefficient.

Conclusion

The MSMBJ36A is a bi-directional TVS diode designed for protection of I/O interfaces in applications needing low capacitance with moderate voltage ratings. The device is suitable for protection against ESD, EFT and surge events. The unique vertical design of the device helps reduce the thermal excursions that occur in data and signal applications. The device has a low operating temperature and a low capacitance, making it suitable for applications where capacitance is an issue. The long-term reliability of the device is typically enhanced by its low leakage current and low temperature coefficient. The MSMBJ36A is ideal for circuit protection against EOS and ESD.

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