MSMLJ26AE3

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The MSMLJ26AE3 is a bidirectional TVS diode designed for circuit-level protection shown in the figure below. This TVS-diode series is recommended for the protection of data lines in computers, computer peripherals, communications equipments, consumer electronics, and other electronic systems against damage due to electrostatic discharge (ESD) or other transient voltage phenomena.

The MSMLJ26AE3 is packaged in an SOD-123FL surface mount type and is comprised of PN junction avalanche type protection chips with a zener diode. It is used for ESD protection at a voltage over 50V and current over 1A. It offers a low leakage current in normal operation.

Working Principle of MSMLJ26AE3

The working principle of MSMLJ26AE3 is based on avalanche breakdown. The PN junction avalanche chips of the diode has a voltage zener designed to offer protection against transient Voltage spikes. When a voltage greater than the specified clamping voltage is applied, the diode begins conducting current in reverse direction. This is due to avalanche breakdown, which results in the formation of an inversion layer in the junction. The inversion layer provides resistance to the current flow and reduces the voltage spike. This protection mechanism provides a better signal integrity in terms of oscillation, ringing, and reflections.

In addition, the threshold voltage is designed to be just above the normal operation voltage so that the diode does not interfere during normal operation. This is useful for application circuits with shorter communication lines.

The MSMLJ26AE3 offers excellent signal integrity, low capacitance, and low leakage current in normal operations. It also provides an over-current protection feature that helps protect the device from short-circuits. Furthermore, the low clamping factor and low leakage current allows for compatibility with a wide range of application circuits.

Application fields of MSMLJ26AE3

The MSMLJ26AE3 is most suitable for application circuits with shorter communication lines. It is also used for ESD protection of data lines in computers, computer peripherals, communications equipments, consumer electronics, and other electronic systems against damage due to electrostatic discharge (ESD) or other transient voltage phenomena. It is also used for high-speed communications, signal transmission, and sensitive analog and digital signals, and can be used in mobile phones, payphones, and other equipment.

In summary, the MSMLJ26AE3 is a bidirectional TVS diode which is used for circuit-level protection. It has excellent signal integrity, low capacitance, and low leakage current in normal operations and provides an over-current protection feature. It is suitable for application circuits with shorter communication lines and is used for ESD protection of data lines in computers, computer peripherals, communications equipments, consumer electronics, and other applications.

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