SMCJ78C-E3/9AT

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Transient Voltage Suppression (TVS) Diodes are components designed to protect against voltage transients. The SMCJ78C-E3/9AT is one such device that provides protection to both equipment and circuits. In this article, we will explore the application field and working principle of the SMCJ78C-E3/9AT TVS Diode.

First, we will look at the application field of the SMCJ78C-E3/9AT. It is designed to protect against voltage surges or spikes and is therefore ideal for computer and video applications where electrical noise from external sources could potentially be damaging. Other applications such as data line protection, uninterruptible power supplies and other power circuit lines also make use of this TVS Diode to help guard against transient spikes.

The SMCJ78C-E3/9AT is a unidirectional device that provides 600W peak pulse power. It has a reverse stand-off voltage of 73V, a maximum clamping voltage of 104V and a breakdown voltage of 79V. It has a very low leakage current of ≤. 1µA, making it a suitable choice for applications that require a low-leakage diode. The SMCJ78C-E3/9AT also features a fast response time of less than 1 nanosecond, and an operating temperature range of -55°C to +150°C.

Now let\'s examine the working principle of this device. As we previously mentioned, the SMCJ78C-E3/9AT is a unidirectional device. This means it will only provide effective protection against voltage transients from one direction, the negative side. Voltage transients can be either positive or negative, however in the case of the SMCJ78C-E3/9AT, it is only protecting against voltage transients from the negative side. When a voltage transient occurs on the negative side, the diode will conduct current and quickly clamp the voltage at a predetermined level. This clamping action will dissipate the energy of the transient, thus protecting the device and circuit from the potential damage that a surge can cause.

The SMCJ78C-E3/9AT can be used in a variety of applications due to its combination of high peak power, low junction capacitance, and fast response time. These features make it a great choice for protecting against voltage transients in computer and video, data line protection, uninterruptible power supplies, and general power circuit applications.

In conclusion, the SMCJ78C-E3/9AT is an excellent choice for protection against voltage transients in various applications. It has a fast response time, low leakage current, and is able to dissipate the energy of transients quickly by clamping the voltage at a predetermined level. It is a unidirectional device, meaning it will provide protection from one direction, the negative, and is suitable for use in computer and video, power supply, and data line protection applications.

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