SMAJ350AE3/TR13

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TVS (Transient Voltage Suppressors) diodes are an important innovation in power supply design, providing protection from voltage spikes that can damage components, or cause electrical noise. The SMAJ350AE3/TR13 is an example of such a TVS diode, and its uses and working principle is discussed below.

The SMAJ350AE3/TR13 is a unidirectional diode made with a low capacitance PN junction, which offers a high level of protection against electrical transients such as electrostatic discharge (ESD) and electrical fast transients (EFT). It can handle maximum peak pulse power of 1500W, with a peak pulse current of 25A, and a breakdown voltage of 26V. It also features a very flat response to an input voltage, allowing it to reliably detect and suppress transients of varying levels.

The SMAJ350AE3/TR13 is commonly found in consumer electronics, especially electronic devices that require higher levels of protection from voltage spikes. This includes portable electronics such as laptops, which are sensitive to ESD, as well as automotive electronics, which require protection against EFT. It is also used in industrial electronics, particularly in systems that run on higher voltages, as the low capacitance PN junction allows for a faster response, providing additional protection from overvoltage.

The working principle of the SMAJ350AE3/TR13 is based on a simple concept. It features a low capacitance PN junction, which is configured to provide low capacitance between anode and cathode connections. When a sudden overvoltage surge is detected, the junction will draw current, reducing the amount of voltage available and thereby suppressing the peak. This process is known as clamping, and the SMAJ350AE3/TR13 is designed to offer a fast and effective clamping response to overvoltages.

The SMAJ350AE3/TR13 is also designed to be reverse leakage-free, meaning that it does not allow any current to flow when no overvoltage surge is present. This ensures that the device does not interfere with the normal functioning of the power system, and allows it to monitor for transients without degrading performance.

In summary, the SMAJ350AE3/TR13 is an important TVS diode, providing protection against ESD and EFT surges in consumer electronics, automotive electronics, and industrial electronics. Its low capacitance PN junction ensures a rapid response, while its reverse leakage-free design ensures that it does not interfere with normal system functioning.

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