MPLAD18KP120CAE3

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TVS (Transient Voltage Suppression) diodes are diode-based electrical components used to protect electrical circuits from overvoltage, surges, and transient spike events. The MPLAD18KP120CAE3 is a TVS diode designed to offer optimum protection to sensitive electronics such as GPS receivers, automotive components, computers, and consumer electronics applications. This article discusses the application field and working principle of MPLAD18KP120CAE3.

Applications of the MPLAD18KP120CAE3

The MPLAD18KP120CAE3 is designed for use in high-speed application, such as portable electronic devices, automotive components, and consumer electronics. Its small form factor allows it to be used in tight spaces, and its low capacitance allows it to maintain signal integrity. It is also suitable for high-frequency, low-level signal applications, such as GPS receivers and communications systems.

The MPLAD18KP120CAE3 is designed to provide protection from transient voltages in motor vehicles, which is critical for the protection of sensitive electronics. It is specifically designed to offer protection from inrush current induced transient voltages on the CAN bus. It also offers protection from high-voltage transient spikes which could be induced by EMI, RFI, or lightning.

The MPLAD18KP120CAE3 is also suitable for protecting sensitive electronic components from inrush current during power-on or power-off events. This diode also has the capability of preventing damage from overvoltage when exposed to high voltages and surges.

Working Principle of MPLAD18KP120CAE3

The MPLAD18KP120CAE3 is a silicon-based TVS diode that operates in two stages. The first stage is the breakdown stage. At this stage, when the applied voltage exceeds the diode\'s breakdown voltage, the diode begins to conduct current. This causes the diode to create a voltage across its internal junction.

In the second stage, the Avalanche stage, the current is further increased when the diode\'s internal junction is subjected to an increased electric field. This increase in current further lowers the diode\'s breakdown voltage. The diode will continue to conduct current until the voltage is reduced to a safe level.

The MPLAD18KP120CAE3 is designed with low junction capacitance which allows it to maintain signal integrity and stability. The diode also has a built-in protective resistor, which limits the inrush current flowing through the diode.

Conclusion

The MPLAD18KP120CAE3 is a TVS diode designed to provide protection from transient voltages, surges, and inrush current. Its small form factor and low capacitance make it ideal for use in high-speed, low-level signal applications such as GPS receivers, communication systems, and automotive components. The diode works in two stages, the breakdown and avalanche stages, to provide protection from high transient voltages. The diode\'s built-in protective resistor limits the inrush current and maintains signal integrity.

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