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SA58C Application Field and Working Principle

The SA58C is part of the Transient Voltage Suppression (TVS) diodes series. The SA58C is used for protection against surges on DC power or signal lines. It provides a hermetically sealed and compact solution to protect applications over a wide range of operating temperatures and peaks.

Application Field

SA58C technologies are a versatile solution for device protection. They are widely used in a wide range of applications such as access control, automotive, communications, industrial control, instrumentation, medical devices, networking equipment, robotics, servers, and power supplies. Additionally, SA58C can be used for protecting equipment in constrained space which might require high working temperature and lack sufficient airflow.

Working Principle

The SA58C is a unidirectional device, meaning it allows current flow in the forward direction but blocks it from flowing in the reverse direction. In other words, once the SA58C is triggered, it will start to conduct current through it in a single direction which will reduce the voltage on the line it\'s connected to. This is done by releasing some of the energy absorbed as heat through its internal resistance. The SA58C is triggered when it reaches its peak voltage rating, after which it will stop conducting current until it is reset.

The SA58C is designed to absorb energy surges by dissipating them over a given time frame. It can absorb surges from 1mA to 1000mA. It has a fast response time, which allows it to respond to surge events before they cause significant damage to the system. The SA58C can be used in its own or in series with other components to give a desired configuration.

The SA58C has an impressive peak rating of up to 400V with a temperature range of -65°C to 150°C, making it ideal for a variety of applications, even in extreme environments. It is a rugged, light weight and low profile component, making it easy to integrate and install.

TVS diodes such as the SA58C are an important part of protecting sensitive circuits from over voltages and transients. They are increasingly being used in critical applications to prevent surges from damaging components and systems.

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