ITA18B1RL 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, or transient voltage suppressors, are commonly used components in a wide variety of applications. The ITA18B1RL is a television signalling diode manufactured by Vishay Intertechnology that is often found in TV and radio broadcast equipment as well as other electronic apparatus. This TVS diode is an ideal choice for electronic circuits and systems that require robust protection from transient overloads and exposure to high voltage.

The ITA18B1RL features a peak power rating of up to 2200W at 1 x 10-6 sec, making it suitable for most broadcast and television applications. Furthermore, the device has a reverse stand-off voltage of 22 V, a reverse working voltage of 19 V, and a breakdown voltage of 25 V. These specs make the ITA18B1RL an appropriate choice for applications such as surge suppression, AC/DC power switches, RF components and ESD protection in TV and radio broadcast equipment.

The ITA18B1RL is housed in a low-profile SOT-23 package, making it suitable for use in compact designs and applications in which space is at a premium. The small size of the device is also advantageous when it comes to power dissipation. The diode is able to dissipate a maximum of 1.0 Watt, which is comparable to larger packages that require additional space for cooling.

Aside from its size, the ITA18B1RL's construction further enhances its effectiveness as a TVS diode. The device is constructed of a semiconductor junction inside a glass-coated metal enclosure, which prevents reverse current flow. This construction also helps to reduce the effect of thermal runaway, which can cause a device to fail due to excessive heat. In addition, the device has a capacitance that is lower than 0.2 pF, ensuring that it will not adversely affect any of the surrounding electronics in the system.

The ITA18B1RL's operation relies on the principle of avalanche breakdown, which occurs when a voltage greater than the device's reverse breakdown voltage is applied. When the device reaches its breakdown voltage, it begins to slope downward from its peak voltage and begins to “clamp” or limit any overvoltage to a predetermined safe level. This process is what helps to protect any adjacent circuitry from damage due to transient overload.

In addition to its surge protection capabilities, the ITA18B1RL also offers low leakage current of less than 20 μA at normal operating temperature. This ensures that the device will not draw a large amount of current during normal operation, conserving power and keeping energy costs low.

Overall, the ITA18B1RL is an ideal choice for TV and radio broadcast equipment looking for robust protection from overvoltages and transients. Its compact size, low leakage current, and avalanche breakdown protection capabilities make it well-suited for use in these types of applications. The device's construction also ensures that it will remain effective in the long run, even in extreme temperatures and conditions.

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