MXLSMCJ100A Circuit Protection

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TVS - Diodes

TVS (Transient Voltage Suppressor) diodes are semiconductor devices specifically designed to provide surge protection for sensitive electronics and components. These diodes are increasingly being used in automotive, computer, telecommunications, consumer and healthcare applications, due to their effectiveness at safeguarding against short-term high-voltage power spikes.

MXLSMCJ100A Application Field

The MXLSMCJ100A TVS diode is capable of withstanding up to 1000 watts of transient surge current, making it well-suited to a wide range of applications. It can be found in computers, cars, and telecommunications equipment for surge protection, as well as in medical products and other consumer electronics for overvoltage protection. It is particularly well-suited to protecting microcontrollers, high-speed logic circuits, and touchscreens.

MXLSMCJ100A Working Principle

TVS diodes are designed to protect against transient voltages that are higher than the device’s rating. The key to a TVS diode\'s ability to do this is its breakdown voltage. When the voltage across it exceeds the breakdown voltage, the diode will enter a reverse breakdown mode, forming an avalanche (or Zener) diode that conducts current from one junction to the other which reduces its voltage until it reaches its steady-state voltage. This breakdown voltage is determined by the product’s design.

The MXLSMCJ100A, for example, has a breakdown voltage of 26V (no more than 27V). It can start conducting current once the voltage exceeds 27V, and it will remain in a conduction state until the voltage drops back below 27V. During this conduction phase, it will dissipate energy (heat).

In addition to providing voltage protection, the MXLSMCJ100A also offers protection against electrostatic discharge, which is a common cause of system damage in electronic devices. Its low dynamic resistance ensures that the diode can respond quickly to voltage spikes, providing effective protection against electrical surges.

Conclusion

The MXLSMCJ100A is a TVS diode with a breakdown voltage of 26V, designed to provide surge protection for sensitive electronic components in automotive, computer, telecommunications, consumer, and healthcare applications. Its low dynamic resistance ensures it can react quickly to voltage spikes, and its high surge current rating makes it suited to a wide variety of applications.

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