MXLSMCJ90AE3 Circuit Protection

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Transient Voltage Suppressors (TVS) are electrical devices used to protect electronic components from transients such as overvoltage, electrostatic discharge (ESD) and induced surge current. The MXLSMCJ90AE3 is a specialized TVS diode designed specifically to protect voltage sensitive components such as microcontrollers, digital signal processors, memories and analog-to-digital converters. This device features a unique construction that provides superior protection against ESD, lightning and induced surge current.

The MXLSMCJ90AE3 is a unidirectional low-capacitance transient voltage suppressor with a breakdown voltage of 90 volts maximum. It is designed to provide protection and noise attenuation for components ranging from 5.5 to 18 volts. The device operates by clamping any transient voltages above 90 volts, and allowing minimum voltage drop when in normal operation. The device is tested to withstand 15,000 watts of power for a single 8/20μs waveform.

The device features a dual protection technology combining the signal diode with a Zener diode with a maximum breakdown voltage of 35 volts. The signal diode consists of an n-type silicon layer that is connected to the cathode of the diode. This layer absorbs the majority of the transient energy and prevents it from reaching the Zener diode which is connected to the anode of the diode. The Zener diode absorbs any remaining energy that is greater than the breakdown voltage, ensuring that the voltage level is well within tolerance.

The MXLSMCJ90AE3 is used in a range of diverse applications, mostly in high-frequency and power sensitive circuits, such as motor control systems and power supplies. The device also finds application in telecom equipment, medical devices and power line applications. The device is ideal for use in applications requiring a high efficiency, low dynamic resistance and low trigger current.

In operation, the device works by limiting the voltage across it to a predetermined safe level. To do this, the device uses a Zener diode and a signal diode connected in parallel. The Zener diode limits the voltage to its breakdown voltage, while the signal diode absorbs and diverts any remaining transient energy. The combination of the two ensures that the circuit is protected from excessive voltages, and thus protects the downstream components.

The MXLSMCJ90AE3 offers multiple benefits to its users. It is designed to work in a wide range of voltage and temperature conditions and provides superior surge protection. The device also has a low on state resistance and low clamping voltage for superior noise attenuation. Additionally, the low clamping voltage of the device ensures low operation power loss, making it ideal for use in low power consumption applications.

The MXLSMCJ90AE3 is a comprehensive and cost-effective solution for suppressing voltage transients. It is designed to provide reliable protection against a range of transient events, and its wide operating voltage range makes it suitable for a variety of applications. Additionally, its low resistance and low clamping voltage make it the ideal solution for high-frequency and power sensitive applications.

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