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TVS - Diodes: MAPLAD18KP8.5CAE3 application field and working principle

TVS (Transient Voltage Suppressor) diode is a kind of semiconductor device that can protect the electric circuit from transient overvoltage. It is widely used in communication systems, power supplies, automotive electronics, protection of integrated circuits and other devices. The MAPLAD18KP8.5CAE3 is a very common kind of TVS diode. This article will discuss about MAPLAD18KP8.5CAE3 application field and working principle.

Application

MAPLAD18KP8.5CAE3 TVS diode is mainly used in the field such as automotive electronics, communication system, power supply, computer, electronic game equipment and other electronic products. It is mainly used to protect circuits in these fields form electric circuit overvoltage, such as electrostatic discharge, transient voltage surge etc. This diode can instantly absorb a large amount of transient overvoltage, and prevent it from damage the circuit due to overvoltage.

MAPLAD18KP8.5CAE3 is also used in electronic equipment which working in high voltage environment. It can function as an energy-absorbing component to protect other components in the circuit from the overvoltage. Furthermore, it can also be used to protect equipment when it is connected to some power source that may suddenly have high voltage. Moreover, MAPLAD18KP8.5CAE3 can also protect electronic equipment from electrical noise generated by external interference.

Working Principle

MAPLAD18KP8.5CAE3 TVS diode works as a shunt in electronic circuit, which can reduce the voltage, or it can even meltdown when the voltage and current is too high. It has dual integrated diodes in each leg to reduce the voltage and protect the circuit at the same time. The breakdown voltage of MAPLAD18KP8.5CAE3 is about 8.5V, which is the voltage at which it can work properly and protect the circuits. When the input voltage rises above 8.5V, the MAPLAD18KP8.5CAE3 will automatically start sensing the overvoltage, and its conduction angle will increase, in order to reduce the voltage and current on the circuit.

Knowing the working principle, MAPLAD18KP8.5CAE3 will reduce the voltage on the circuit instead of reducing the input voltage. In other words, when the external input voltage of the circuit is higher than 8.5V, the MAPLAD18KP8.5CAE3 will reduce the circuit voltage to 8.5V, and protect the circuit from high voltage or transient overvoltage. When the voltage is lower than 8.5V, the voltage on the circuit will be the same as the input voltage, and the MAPLAD18KP8.5CAE3 will not conduct current due to the lack of voltage.

Conclusion

In summary, MAPLAD18KP8.5CAE3 is a very popular kind of TVS diode that can be used in many areas. It has a wide application field from automotive to communication system, and its working principle is quite simple. When the input voltage is higher than its breakdown voltage (8.5V), it will start sensing and reduce the voltage on the circuit to protect the circuit from overvoltage. Therefore, MAPLAD18KP8.5CAE3 is a very versatile and useful component in many circuit designs.

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