BAS21VD,165

Diodes - Rectifiers - Arrays

BAS21VD,165 is a semiconductor device belonging to the diode array categories, whose application and working principle are outlined in this article.

What is BAS21VD,165

BAS21VD,165 is a type of diode array, which consists of two back-to-back Schottky diodes. It is used for applications such as voltage clamping, travelling wave suppression, and over-voltage protection. This device is available in a SOT-23 case, measuring 5.6 x 2.6 x 1.6 mm in size.

Application field of BAS21VD,165

Some of the common applications of BAS21VD,165 are outlined as follows:

• It is used to protect over-voltage in portable and embedded systems.
• It is used in high-speed data terminals and satellite communication systems.
• It is used in audio amplifiers and RF (radio frequency) amplifiers.

Working Principle of BAS21VD,165

The working principle of BAS21VD, 165 is relatively simple. The device comprises of two Schottky diodes connected back-to-back. This configuration enables the diode to act as a voltage clamp, meaning it provides current protection when the input voltage reaches a certain level beyond which it is not able to dissipate heat and hence protects the system from over-voltage.On application of an input voltage, the current flows quickly through the two Schottky diodes while their reverse leakage current is comparatively lower. This enables the device to effectively protect the system against over-voltage.BAS21VD,165 also provides protection against travelling-wave interference. This device is useful when certain types of electrical interference arise due to travelling-wave signals in the connected device, including telephone, coaxial cable and electrical power lines. This interference can cause device malfunction or failure, and BAS21VD,165 can help in providing protection against such interference.

Conclusion

In conclusion, BAS21VD,165 is a semiconductor device which belongs to the diode array category and is used for applications such as voltage clamping, travelling wave suppression, and over-voltage protection. Its working principle involves the use of two back-to-back Schottky diodes, which enables the device to act as a voltage clamp and provide protection against over-voltage and travelling-wave interference.