DF5A6.8JE,LM Circuit Protection

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

TVS diodes, also known as transient voltage suppressors, are devices used to protect electronic equipment from power surges, electrostatic discharges and other voltage spikes. The DF5A6.8JELM is a particular type of TVS diode, used for unidirectional protection, making it ideal for use in automotive and other high-voltage applications. In this article, we will explore its application field and working principle.

The DF5A6.8JELM TVS diode is a small, unidirectional device, which can protect against harmful voltage spikes and surges. It is designed for use in high-voltage applications, such as those found in the automotive industry, as well as in systems where ESD (electrostatic discharge) needs to be protected against. It is also suitable for power converters, telecom systems, and general power management.

The DF5A6.8JELM diode has a reverse stand-off voltage rating of 6.8V, with a clamping voltage of 15V, making it perfect for applications that require transient voltage protection. It can handle surges up to 400W in a 1ms pulse, and has a low capacitance of 10pF between its anode and cathode. Additionally, it has a low-inductance substrate, which helps to reduce the effect of power line transients.

The DF5A6.8JELM diode works by absorbing the energy of the voltage surge, and then dissipating it away quickly and safely. This can be done in either a Zener or a pn junction mechanism, depending on the particular application. In the Zener mechanism, the diode absorbs the extra energy and conducts it away. This is the most common process for transient voltage protection, and it works by combining a Zener diode\'s two characteristics—a low breakdown voltage and its ability to rapidly conduct away the extra voltage.

In the pn junction mechanism, the voltage spike is clamped between two diodes, with the DF5A6.8JELM diode acting as a choke. This is a much more efficient method than the Zener mechanism, as it can effectively “chop off” the voltage spike and keep it from entering the device. In both mechanisms, the diode must be able to handle the sudden surge and be quick enough to dissipate it away before it can cause any damage.

The DF5A6.8JELM TVS diode is a reliable and effective way to protect automotive and high-voltage systems from power surges and electrostatic discharges. Its low-inductance substrate and low capacitance, coupled with its 6.8V stand-off voltage rating and 15V clamping voltage rating, make it an ideal choice for a wide range of applications. It can be used in conjunction with other components, such as fuses and resistors, to provide further protection. With the right configuration, the DF5A6.8JELM can provide effective protection for automotive and high-voltage systems, protecting them from transients and other voltage spikes.

The specific data is subject to PDF, and the above content is for reference