1SMA17AT3G

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1SMA17AT3G application field and working principle

TVS (transient voltage suppressor) - diodes are semiconductor components that are designed to reduce the impact of electrical transients in power supply, communications systems, automotive systems and industrial electronics circuits. 1SMA17AT3G is a TVS-diode that provides fast and effective surge protection for different application areas. It has a unidirectional low leakage current, a low capacitance, a small junction capacitance and a high peak pulse power capability.

Application Areas

1SMA17AT3G is used as a protective component which improves system immunity against lightning and electrostatic discharge (ESD). It is mainly applied in industrial, telecommunications, automotive, and medical industry, where protection is needed from voltage transients. It is particularly suitable for the input side protection of radio frequency signals, supplying excellent noise immunity in conjunction with short propagation delays.

Working Principle:

1SMA17AT3G works by allowing a small amount of current to flow through the diode during normal operation, whilst clamping the voltage at a certain level when the current exceeds a certain value. The peak current is limited by a resistor, ensuring that the voltage across the TVS-diode never rises too high. While the resistor limits the peak current, the diode itself provides the necessary protection against voltage overshoot. The diode is also capable of suppressing repetitive lightning-related surges for a long period of time, ensuring protection of the system over the course of its working life.

1SMA17AT3G has a wide range of benefits as it can effectively suppress voltage transients, along with reducing the noise emitted by the circuit. It also provides excellent protection against surges, making it ideal for applications where protection is needed against lightning or ESD. Furthermore, it has high peak pulse power capability, as well as low capacitance and junction capacitance, making it a great choice for RF signal applications.

1SMA17AT3G is an essential component for providing surge protection in a variety of applications, from industrial to automotive and communications to medical. By offering the high levels of protection needed in harsh, voltage-intensive environments, 1SMA17AT3G ensures the longevity and reliability of the system.

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