SMDJ26

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: SMDJ26 Application Field and Working Principle

TVS, or transient voltage suppression, diode or an avalanche diode is a device developed in an effort to allow power flow in one direction while protecting a circuit against a surge of electricity or voltage spike. It is comprised of two legs; the anode and the cathode. When the voltage supply is lower than the value of the avalanche breakdown voltage, current flow is allowed between the anode and cathode. As soon as the voltage increases beyond the breakdown level, the diode generates the opposite polarity voltage, blocking the current. This makes TVS diodes an ideal choice for transient protection.

One of the most popular TVS-Diodes in the industry is the SMDJ26. It offers high level of reliability and performance, and has a 360-degree wrap-around construction that aids in preventing arcing and cracks between the anode and cathode. It also features a 5mm maximum height package that allows for effective installation in limited-space applications. Furthermore, the SMDJ26 offers high ESD protection, and is rated with a 9.1kV of ESD capability.

The SMDJ26 high-reliability diode can be used in a wide range of applications, including in peripheral equipments for computers such as keyboards, printers and workstations; similar peripheral equipments for communication devices such as telephones, answering machines; and a variety of electronic and electrical systems such as LCD monitors, TVs, personal digital assistants, and car electronics.

The working principle of the SMDJ26 can be broken down into three steps. The first step is avalanche breakdown. This occurs when the voltage between the anode and cathode reaches the avalanche breakdown value. At this stage, the valence band electrons start to leave the valence band and increase the current in the diode. The second step is the clamping process. This occurs when the current and voltage cross a certain limit. When this occurs, the avalanche breakdown is interrupted, then the diode blocks any further current flow in the same direction.

Lastly, the recovery process occurs. This occurs when the voltage and current drop below a certain limit. At this point, the diode can return to its original state and re-allow current flow between the anode and cathode.

In summary, the SMDJ26 transient voltage suppression diode offers high-level reliability and performance, and can be used for a variety of applications. It is especially useful in applications where reliable surge protection may be necessary. Its working principle involves three steps; avalanche breakdown, clamping process, and recovery process.

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