MSMCGLCE45AE3

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TVS (Transient Voltage Suppressor) diodes, or ESD (Electro-Static Discharge) suppressors, are broadly used in order to protect circuits from voltage spikes generated from external electrostatic charges, induction or lightning. The MSMCGLCE45AE3 is a high-defined TVS diode, particularly suitable for applications demanding increased ESD protection. Using a 15Vzener diode, it is designed to provide surge protection for particular automotive systems such as airbags, ABS, and back-up batteries. The device is also able to clamp a voltage spike with up to 45A surge currents.

The MSMCGLCE45AE3 is composed of a silicon chip and low profile surface-mounted package, and the particular construction maximizes the performance of the device and increases the durability and the quality of the system. Moreover, the combination of this particular diode with a protection circuit is able to filter out any AC surges from the power line. A special design of the active element ensures two additional advantages for the system: low clamping voltage and low dynamic resistance.

When considering the principles of operation of this device, it is based on the voltage-dependent output circuitry, which is able to convert the overvoltage into an impulse of current. The voltage at the output is limited to a specific level which depends on the parameters of the particular diode. The leakage current of the device is related to the values of the input and output voltages, but it is virtually a fixed value regardless of the factors.

The main feature of this device is its low capacitance, which is a major advantage over the similar types of components. This makes it perfect for applications operating at high speed. The reverse idling current of the diode is dependent on the applied voltage, and the current flows even at the output is null, forming a stable connection between the input and the output of the device. Additionally, the EMC/EMI can be improved which is essential for automotive applications as the engine and body electronics will be affected by the coils, the wiring harness, switching transistors, and other components.

When talking about the application fields of this diode, the most common one is automotive systems. High reliability of the components, as well as its low capacitance and reverse idling current, make it suitable for specific applications such as airbags, ABS, and back-up batteries. It is also suitable for consumer electronics, as well as for power conditioning circuits. Considering the special construction of the diode, its working principles and application field, it can be assumed that it will become a very popular device in the automotive industry.

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