MAPLAD7.5KP11CA Circuit Protection

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A Transient Voltage Suppresor (TVS) is a diode-based device which prevents transient overvoltage damage in electronics. It consists of a diode, typically a Zener diode, connected to an external capacitor and a resistor for isolation. The MAPLAD7.5KP11CA is a popular example of a TVS diode and is primarily used in automotive and industrial applications.

The MAPLAD7.5KP11CA TVS diode is designed to protect against electrostatic discharge (ESD) in applications where an event can cause transient voltage fluctuations. It is also used for protection against inductive switching and voltage transients that can be caused by dynamic events such as circuit or cable connection/disconnection. The MAPLAD7.5KP11CA is designed to provide protection for a wide range of voltages and currents, making it ideal for rugged, high-powered automotive applications.

The MAPLAD7.5KP11CA is a unidirectional TVS diode that is capable of clamping sudden surges of up to 8.5kV at peak. It features a voltage breakdown rating of 7.5kV, a maximum peak current rating of 11A, an effective capacitance of 0.008pF, and a capacitance at 10kV of 0.012pF. The MAPLAD7.5KP11CA dissipates power continuously and its isothermal heating coefficient is 0.009°C/W. The device has a reverse stand-off voltage of 6V.

The working principle of the MAPLAD7.5KP11CA is based on the maintenance of a breakdown voltage, or clamp voltage, between its anode and cathode under normal operating conditions. However, when a sudden surge occurs, the device’s dedicated structures are designed to absorb and dissipate excessive energy to clamp the voltage down to a safe level.

When a surge is encountered, the TVS diode is quickly switched into conduction by the surge voltage and current. This immediately causes the voltage across the device to rapidly drop and the current to rapidly increase. This action clamps the voltage to the breakdown voltage. When the surge has passed, the diode switches back into a nonconductive state, and the circuitry is protected from the surge.

The MAPLAD7.5KP11CA is a cost-effective and reliable solution for protecting automotive and industrial applications from transient overvoltage damage. It is designed to be used in a variety of applications, from power racks and engine compartments to heavy industrial equipment.

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