SMCG100CA-M3/9AT

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The SMCG100CA-M3/9AT is a TVS (transient voltage suppressor) diode used for reducing noise caused by voltage spikes and transients on industrial and automotive equipment. This type of device is commonly used in automotive microcontroller units as a protection device.

The SMCG100CA-M3/9AT is a surge suppressor diode consisting of a Zener diode and a low-capacitance MOSFET on a single die. The unidirectional protection of the Zener diode provides protection against voltage transients in one direction while the bidirectional voltage protection of the MOSFET provides protection against transients from both directions. This combination of components ensures the fastest possible response time and achieves superior clamping performance for a wide range of applications.

The SMCG100CA-M3/9AT is designed for use in power supply circuits, automotive systems, and application-specific power control circuits. It can be used in high-voltage, high-current applications due to its low maximum clamping voltage, high surge and ESD rating, and high current handling capability. In automotive applications, this device functions as an EMI filter, providing protection for the circuit from voltage spikes and surges.

The working principle of the SMCG100CA-M3/9AT is quite simple. The MOSFET allows current to flow in either direction, while the Zener diode is unidirectional and breaks down during extreme voltage transients. When a transient voltage is encountered by the diode, the Zener diode conducts and limits the voltage to the maximum clamping voltage. The MOSFET also participates in current conduction, allowing for a much faster response time than a normal Zener diode.

The SMCG100CA-M3/9AT is a reliable surge protection device that can help protect delicate electronics from voltage transients and surges. It is designed to work in both industrial and automotive applications, including all types of power supplies, motor controllers, braking circuits, and automotive microcontrollers. It is also capable of providing protection from extreme ESD and voltage transients.

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