MMQA12VT1G

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A TVS diode, also referred to as a Transient Voltage Suppressor diode, is an electronic component that is used to normalize transient voltages created by electrostatic discharge (ESD) in the electrical system. The MMQA12VT1G is a surge protection diode specifically designed for automotive applications, and it features a reverse breakdown voltage of 12 volts with a unidirectional clamping capability of 18 volts.

The MMQA12VT1G is designed with low capacitance while providing high ESD protection, and it is capable of handling up to 15A surge currents. It also offers high speed response to transient voltage with a fast pulse rise time of less than 10 ns. Besides, the device’s internal circuitry prevents secondary breakdown, ensuring that the voltage drop over the device remains low during high ESD events.

The MMQA12VT1G makes use of a method known as \'clamping\' for the purpose of voltage protection, which is a technique of diverting high transient voltage directly to ground and away from sensitive components. The device incorporates a special dual-diode structure where the first diode is responsible for clamping while the second diode follows with a reverse polarity.

The operation principle of the MMQA12VT1G involves extrapolating part of the energy from the peak transient pulse and conserving it in the passivation layer. As a result, most of the transient pulse energy is diverted away from the protected system, resulting in a considerably low voltage.

The MMQA12VT1G has a wide range of automotive application fields, such as car audio, automotive ignition system, DC/DC converters, gate drivers, and ECUs for your engine control. It is also an ideal component for protecting your vehicle’s sensitive electronic circuits against transients due to its fast response time and low-capacitance design. Moreover, this device is ideal for protecting your smartphone, tablet or any other mobile device, as well as onboard computers in cars and trucks.

In conclusion, the MMQA12VT1G is a surge protection diode designed for automotive applications. It features a reverse breakdown voltage of 12 volts and a unidirectional clamping capability of 18 volts. It is capable of handling up to 15A surge currents and offers high speed response to transient voltage with a fast pulse rise time of less than 10 ns. The device is ideal for protecting sensitive electronic circuits in vehicles from transient voltage caused by electrostatic discharge.

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