MXLSMBG8.5AE3 Circuit Protection

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Introduction:

The MXLSMBG8.5AE3 is an ultra-fast television suppression diode with a unidirectional breakdown voltage of 8.5 V, a capacitance of 320 pF, a surge current of 50 A (10/1000 μs) and a reverse voltage of 6.5 V. It is a TVS diode designed to provide overvoltage protection against electrostatic discharge (ESD), surge, and lightning induced events in electronic systems. The MXLSMBG8.5AE3 offers both line-to-line and line-to-ground protection and is suitable for use in automotive, appliance, industrial, and telecom applications.

Application Field

The MXLSMBG8.5AE3 can be used for automotive applications such as electronic engine control modules, airbags, body controllers, and immobilizer control systems. It is also used in appliances such as LCD/Plasma TVs, DVD Players, and gaming consoles for surge and lightning protection. It can also be used in industrial control systems and telecom applications such as modems, routers, and VoIP systems.

Working Principle of the MXLSMBG8.5AE3

The MXLSMBG8.5AE3 functions as a voltage-dependent, unidirectional switch that protects electronic components from overvoltage conditions. It passes a nominal current when the voltage across it is lower than its breakdown voltage, and then it blocks a larger current once the voltage reaches or exceeds its breakdown voltage.

When subjected to an overvoltage event, the breakdown voltage of the MXLSMBG8.5AE3 triggers a flow of current that is limited by the low inductance, low thermal resistance, and fast response time of the TVS diode. This current is then diverted to the ground and away from the sensitive components to protect them from the overvoltage. The reverse operating voltage of 6.5 V prevents the diode from conducting during undervoltage conditions.

The MXLSMBG8.5AE3 also has bidirectional protection to protect the device from both positive and negative overvoltage conditions. It has a low capacitance of 320 pF, which prevents signal integrity degradation, and a surge current rating of 50 A. These features ensure that the MXLSMBG8.5AE3 can provide reliable protection while maintaining signal integrity.

Conclusion

The MXLSMBG8.5AE3 is a highly reliable and robust TVS diode that offers overvoltage protection against ESD, surge, and lightning induced events. It is suitable for use in automotive, appliance, industrial, and telecom applications and has a unidirectional breakdown voltage of 8.5 V, reverse voltage of 6.5 V, low capacitance of 320 pF, and a surge current of 50 A.

The MXLSMBG8.5AE3 protects sensitive components by diverting large overvoltage currents away from them and has bidirectional protection to protect devices from both positive and negative overvoltage conditions. It also has a low capacitance of 320 pF to prevent signal integrity degradation and a surge current rating of 50 A to ensure reliable protection.

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