MXSMCGLCE90A Circuit Protection

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TVS - Diodes are widely used in the protection of electronic circuits from overvoltage transients, and are a popular choice on many integrated circuits and discrete electronic components. The MXSMCGLCE90A is an advanced surge suppressor with a working voltage of over nine volts, which offers high-level protection from overvoltage transient events. In this article, the application field and working principle of MXSMCGLCE90A will be explored.

The application field of MXSMCGLCE90A is broad ranging, with its ability to protect a wide variety of circuits from destruction caused by short-duration, high-voltage transients. It is commonly used in automotive, medical, and communications systems, as well as industrial processes that are susceptible to electrical noise or line transients. In addition, the device is often employed to protect electronics from lightning strikes and other power events.

The working principle of the MXSMCGLCE90A is based on the principle of avalanche breakdown. A zener diode has been incorporated into the circuit, with an avalanche breakdown voltage which is adjustable between 9 and 20 volts. In operation, when the voltage across the zener diode exceeds the avalanche breakdown threshold, the diode is subjected to a rapid thermal breakdown. As a result of this thermal breakdown, current is freely flowing from the cathode to the anode. The current flow to the anode is then suppressed by the integrated metal oxide varistor, thus suppressing any further voltage transients and preventing damage to the circuit.

The MXSMCGLCE90A also features an internal resistor ladder which is used to regulate the output voltage, while the on-chip start-up component sets a minimum current trip point during start-up. In this way, the device is able to protect the circuit from high-current transients. Furthermore, the device is also capable of addressing alternating current transients, as the diode’s reverse breakdown voltage is adjustable between 9 and 20 volts, allowing the device to address power supply voltages ranging from 75 volts to 700 volts.

The MXSMCGLCE90A offers excellent protection against overvoltage transients. It is a versatile device with a wide application field, and its adjustable avalanche breakdown voltage makes it suitable for use in a wide variety of circuits. Furthermore, its unique design provides the added benefit of being able to address alternating current transients as well as direct current transients. All in all, the MXSMCGLCE90A is an impressive surge suppressor and an ideal choice for many protection applications.

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