MXLPLAD6.5KP10CAE3 Circuit Protection

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Transient Voltage Suppressors (TVS) are widely used to protect electrical circuits from transient overvoltage caused as a result of electrical surges such as lightning, electromagnetic pulses (EMP), inductive switching, or power switch contacts opening and closing. TVS are also known as spark gaps, surge suppressors, and avalanche diodes. These devices protect the circuits from high voltage events and provide short duration protection.

MXLPLAD6.5KP10CAE3 is a unidirectional with an 6.5kV Breakdown Voltage rating and 10A peak pulse current rating. It is a widely used TVS Diode designed for use in protecting automotive ECUs such as Air Bag control module from electrical transients. The particular device has a fast response time (<1.0ps), high peak pulse power and a high clamping voltage that makes it suitable for protecting against electrostatic discharge (ESD) and surge protection.

The MXLPLAD6.5KP10CAE3 consists of a bidirectional avalanche diode/semiconductor diode with an integral common-mode transient voltage suppressor (TVS). This device is typically used to provide protection for input/output circuit protection or data line surge protection. The individual bidirectional TVS devices have a cathode on one side and an anode on the other.

The main working principle of the MXLPLAD6.5KP10CAE3 is that when a positive or negative voltage transient of sufficient magnitude is applied to the input circuit, the bidirectional devices trigger and clamp the transient voltage to a safe level, typically 15% below the breakdown voltage rating. The trigger current is typically less than 1 µA and the trigger aperture voltage is typically greater than 3 V. The clamping action of the device limits the input voltage below the breakdown voltage rating.

The MXLPLAD6.5KP10CAE3 application field includes automotive ECUs such as Air Bag control modules, cables, connectors, and electronic appliances. This TVS diode is also typically used in automotive ECUs and large masses of wire harnesses, which are sensitive to ESD. In addition, the diode is also used in 12V DC power circuits and low voltage applications. This diode can withstand typical reverse surge current without failure up to 20A (without heater) and up to 40A (with heater) and can therefore be used in applications where large reverse surge currents may occur.

The device also features a soft start function. After the required hold voltage, the device starts to work again and the basic operating voltage is restored. This ensures that the devices don\'t fail due to large inrush currents associated with start-up and that the device will stay in its zero current operating window, which ensures it holds off the voltage transients.

In conclusion, the MXLPLAD6.5KP10CAE3 is a bidirectional TVS diode designed for automotive ECUs, cables, connectors, and other electronic appliances. This diode is designed to protect against transient overvoltage events from surges such as lightning and inductive switching. The device has a 6.5kV Breakdown Voltage rating and 10A peak pulse current rating, fast response time (less than 1.0ps), high clamping voltage and soft start feature. It can withstand typical reverse surge current without failure up to 20A (without heater) and up to 40A (with heater).

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