MXLSMBJ26A Circuit Protection

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TVS-Diodes are used for surge protection applications and in cases where a high voltage needs to be clamped. The MXLSMBJ26A is a specific type of protection diode that is designed to provide protection from overvoltage or all-way surge events. This component is rated for 25 A of peak current and is offered in a very low-profile surface-mount package for easy installation in space-constrained applications.

The MXLSMBJ26A utilizes a multilayer epoxy encapsulated junction designed to dissipate thermal energy across its very small footprint. The device is constructed with a semiconductor PN junction that clamps the voltage when it exceeds its breakdown voltage. It can also provide suppression of leakage currents from low-level static sources. The low internal capacitance allows the device to be used in high-speed and high-voltage applications.

The application field of the MXLSMBJ26A ranges from Enterprise/Telecom equipment and consumer products to medical and automotive power systems, as well as other high-voltage applications. It is best suited for applications where an all-way surge or surge withstanding capability is required, such as isolation in parking security systems, security cameras, automotive, ESD elimination, and any other application where improved reliability is required.

The working principle of the MXLSMBJ26A is to divert or clamp excessive high voltage from the sensitive components or system it is protecting. When the voltage at the diode’s anode reaches its breakdown voltage level, the device becomes conductive and diverts or clamps the overvoltage until the voltage at the anode drops below the breakdown voltage level again, and the device reverts to its original high impedance state. This current flow is limited by the maximum peak current the diode is rated for, allowing it to protect the system from excessive damage.

Overall, the MXLSMBJ26A is a low-profile surface mount, multilayer epoxy device, designed as a high-reliability surge protection diode for a wide range of high voltage applications. It can produce excellent clamping performance when subjected to transient overvoltage events, and its highly annealed junction structure contributes to its extraordinary thermal stability.

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