3KASMC43HE3_A/I

Transient Voltage Suppressor (TVS) diodes are a type of surge protective device designed specifically to quickly clamp down voltages that are higher than normal levels. 3KASMC43HE3 diode is an advanced TVS diode, which can effectively protect low-voltage circuits from current and voltage transients. This article looks into the application fields of 3KASMC43HE3 diode and its working principle.

Application Fields

3KASMC43HE3 diode has two main application fields. Firstly, it can be used in portable device power protection, such as laptop and notebook computers, game consoles, cell phones, etc. It can help maintain the safety of devices in the event of a voltage surge. The diode assists in ensuring that the device does not overload or short circuit when an excess voltage is applied to it. Secondly, the diode can be used in automotive systems protection. It can help prevent any unwanted overvoltage from entering the system and causing damage to a vehicle’s electrical systems.

Working Principle

The 3KASMC43HE3 diode works by using a voltage-clamping principle. This means that when the voltage exceeds a certain threshold, the diode’s built-in power MOSFET will operate to reduce the voltage to a safe level. When the power MOSFET is activated, it short-circuits the diode and diverts the voltage to ground. This clamping action absorbs the voltage surge and prevents it from entering the device and causing damage. The diode also has a built-in thermal protection, which shuts off the diode when it is exposed to excessive temperatures, preventing it from overheating and damaging the device.

Overall, the 3KASMC43HE3 diode is a highly efficient surge protective device that can be used in a variety of applications. It is an excellent way to protect low-voltage circuits from voltage surges, while also providing the extra protection of a built-in thermal protector. With its voltage-clamping principle, it is able to quickly absorb voltage surges and prevent them from entering the device and causing damage.