How long is the service life of the fast recovery diode​

How long is the service life of the fast recovery diode

The application fields offast recovery diode include LED lighting recovery tubes. So, how do we usually calculate its lifespan? As shown in the following figure:

The 220V AC power is reduced by capacitors C1 and R1, and the AC voltage at points A and B is about 15V. It is rectified by VD1 to VD4. A DC voltage of about 14V is obtained on C2 as the working voltage of high brightness fast recovery diode VD5 to VD8. The working current of the fast recovery diodes is about 14mA. Due to the fact that capacitor C1 does not consume active power and the power consumed by the discharge resistor is negligible, the power consumption of the entire circuit is approximately 15 × 0.014 ≈ 0-2 (W).

This hallway light is made of a high brightness fast recovery diode, which turns off during the day and automatically lights up after dark. The annual power consumption does not exceed 2 kWh, and the service life can reach 10 years.

Of course, the secret to increasing the lifespan of fast recovery diode LED lights lies in how to use LED lights correctly in daily life. Firstly, it is necessary to minimize the number and frequency of switches as much as possible. If you want to learn more about fast recovery diode knowledge, please feel free to call our company, and we will wholeheartedly serve you.