SA170C-E3/73

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A TVS diode, which stands for transient voltage suppressor, is a semiconductor device that has similar characteristics of a Zener diode but offers a much higher power handling capability. Such devices are typically used in electronic systems, i.e., computers and communication devices, that need protection from transients caused by electrostatic discharge (ESD) and/or electrical overstress (EOS). Among them, SA170C-E3/73 is a uni-directional TVS that is designed to protect against transient events. This article will focus on the application field and working principle of the SA170C-E3/73.

Application Field of SA170C-E3/73

The SA170C-E3/73, rated for a working voltage of 500V, is well suited for protecting vulnerable electronic components from transient voltages. It is usually applied in switch mode power supplies (SMPS) to give lightning protection and ESD protection. In addition, this unidirectional TVS is suitable for applications in the automotive industry and telecom equipments, where it works as a protection against transients.

Working Principle of SA170C-E3/73

The working principle of the SA170C-E3/73 is very simple. Whenever it receives a signal above 500 V, the TVS diode will go into a high conductive state and allow the voltage to be discharged safely. In this process, the energy of the discharge will turn into heat energy, which is then dissipated away. This ensures the connected electronic components are protected from transient events.

The current conduction capability of the SA170C-E3/73 is rated for up to 170A peak pulse, which is higher than any other standard discrete diodes. This can help protect sensitive components from being damaged by high-energy protection scenarios. On the other hand, this TVS features a low leakage current of only 0.5 uA, meaning it can operate even in low-power applications without interfering or affecting its performance.

In summary, the SA170C-E3/73 is an ideal TVS diode for protecting vulnerable components such as electronics from transient voltages and ESD. It features a high peak pulse current of 170A, low leakage current of 0.5 uA, and a breakdown voltage of 500V. With these characteristics, it is able to offer a high level of protection against transient voltages. Thus, it is suitable for a wide range of applications such as switch mode power supplies, automotive and telecom equipment.

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