SA51CA-E3/54 Circuit Protection

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TVS (Transient Voltage Suppressors) diodes are specialized diodes mainly used in over-voltage protection applications. Their purpose is to protect electronic components from transients, such as power surges, lightning strikes, and other similar occurrences. The SA51CA-E3/54 is a TVS diode that is mainly used to protect coaxial cables from high voltage transients.

The SA51CA-E3/54 is designed as a low clamping voltage, low capacitance, and fast response device. It features a 400 watt peak power dissipation and a reverse breakdown voltage of ​​41V. Additionally, this diode has a fast response time, with a hold-off voltage of 26V and an average on-state resistance of 100 Ω. It also features a low capacitance of 2.1 pF, which makes it ideal for use in high frequency applications.

The SA51CA-E3/54 has a wide range of applications. In the automotive industry, it is used to protect electrical systems and electronic components from high voltage transients. It can also be used in telecommunications systems, such as cellular networks, to protect data lines from surge voltage damage. Additionally, it is commonly used in many consumer electronics, such as televisions, computers, and gaming consoles, in order to protect them from power surges.

The SA51CA-E3/54 works by redirecting excess voltage from an incoming transient to the ground. It does this by providing a series of parallel connected elements, each of which have their own breakdown voltage. When an incoming voltage exceeds the breakdown voltage of a given element, the current will be directed to that element, thus limiting the peak voltage of the transient. This process is known as “clamping” and is how the SA51CA-E3/54 protects electronic components from damage.

In summary, the SA51CA-E3/54 is a versatile TVS diode that is used mainly for over-voltage protection applications in a wide range of electronics, from automotive systems to consumer electronics. It works by providing a series of parallel elements with their own breakdown voltage, which redirects incoming transient voltages to the ground. With its fast response time, low capacitance, and low clamping voltage, the SA51CA-E3/54 is one of the most reliable TVS diodes available.

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