SA28AHE3/54 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 play an important role in the protection of electronic devices from high power signal surge transients. From TVS diodes for general high power applications, to specialised low inductive devices for power supplies, these components are a vital component of any system that requires high power protection. The SA28AHE3/54 TVS diode from M.S. Kennedy is a new addition to the range of TVS diodes. In this article, the application field and working principle of SA28AHE3/54 TVS diode will be discussed.

The SA28AHE3/54 is mainly designed for high power signal surge transients. It is capable of handling power voltages up to 400V and current up to 28A. It is suitable for a wide range of applications, including DC power sources, AC power sources, and electronic devices. It is also ideal for lightning protection, transient voltage suppression, input/output protection, and overvoltage protection.

The working principle of the SA28AHE3/54 is based on a reverse conducting Schottky barrier diode. The diode is designed to conduct current in the reverse direction when the voltage across it reaches a certain level, thus limiting the current and suppressing the incoming surge. As the voltage increases, more and more of the current flows through the diode. The device also has a high power dissipation capability so it can dissipate large amounts of energy during operation. The maximum power dissipation is 26W.

The SA28AHE3/54 is designed with a very low on-state resistance (RDS (on)). This ensures that when the device is in the on-state, the current is able to flow through it with minimal losses. The low on-state resistance also ensures that the device is able to dissipate large amounts of power without overheating. The device also features a low clamping voltage, which helps to protect sensitive electronic components from excessive voltage.

The SA28AHE3/54 also has a high reverse leakage current rating of 400uA. This ensures that the device does not draw excessive current when no voltage is applied across it. This helps to save power when the device is not in use. The device also features an extremely low capacitance of only 11.9pF, which helps to reduce the effects of signal degradation and noise in high frequency circuits.

In conclusion, the SA28AHE3/54 is an efficient TVS diode specifically designed for handling high power signal surge transients. Its low on-state resistance and low capacitance make it ideal for many power applications. Its high power dissipation and reverse leakage current ratings make it an excellent choice for protection against surges. Its low clamping voltage also makes it suitable for protecting sensitive electronic components.

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