MSMLJ26A/TR

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 TVS diodes are protectors for electronic components and circuits from electrical overstress conditions. The MSMLJ26A/TR (Transient Voltage Suppressor) is commonly used for such protection. It is a unidirectional TVS diode with a Low profiled/Small size (SML) package. The device is ideally suited for use in applications where a space saving component is necessary. This article aims to explain the field of application of this diode and its working principles.

Function

The MSMLJ26A/TR is often used in many applications that require protection from transient events such as ESD (Electrostatic Discharge) and EFT (Electrical Fast Transient). This TVS diode is typically used in computer memory modules, EMS, communication architectures, coaxial cables, automotive systems (ABS, SRS, airbag, etc.), and other industrial applications. The device is designed to provide bidirectional protection from electrical overstress conditions. It can be used to protect against voltage transients that exceeds the maximum operating range of the electrical system, or to prevent short circuits downstream if a sudden high current runs through the system.

Working Principle

The working principle of the MSMLJ26A/TR is based on the Solid State P-N structures as well as a Zener breakdown mechanism. When the TVS is subjected to a transient overvoltage event, current will flow through the device and the electronic components that it is connected to. The solid state P-N structure of the device allows for the smooth transfer of electrons through its structure and the Zener breakdown process creates a large amount of energy to be released, ensuring the device can adequately absorb the voltage spike.

The MSMLJ26A/TR has a peak pulse power rating of 26A (10/1000us) and a stand off voltage of 17V. Its breakover voltage is usually between 13V to 16V and it comes with a maximum reverse leakage current of 5mA at 17V. Thus, the device can continue to protect the circuit until the voltage is above 17V and until the device is subjected to a pulse current that is above the peak rating of 26A.

Summary

Therefore, the MSMLJ26A/TR is a low profiled/small size (SML) TVS diode that is used for protection from transient events such as ESD (Electrostatic Discharge) and EFT (Electrical Fast Transient). It has a peak pulse power rating of 26A (10/1000us) and a stand off voltage of 17V. It can be used to protect against voltage transients that exceeds the maximum operating range of the electrical system, or to prevent short circuits downstream if a sudden high current runs through the system. It is a highly versatile device that can be used in many applications.

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