CMSZ5257B BK

CMSZ5257B BK Application Field and Working Principle

The CMSZ5257B BK is a single Zener diode with an avalanche breakdown voltage of 5.2V and an operating current of 200mA. It has an extended operating temperature range of -55℃ to +150℃. With its low power consumption, this diode makes an excellent choice for a wide range of apps, including use in voltage regulation, voltage reference, and DC/DC converters.

Applications

• Voltage regulator in various electronic circuits
• Voltage reference source in DC/DC converters
• Clamping in surge protectors
• Integrated drive circuits

Working Principle

The CMSZ5257B BK works by using the principles of Zener breakdown. This effect occurs when a forward-biased PN junction reaches a certain voltage, at which point it rapidly lowers its resistance and quickly conducts electricity through the junction. This is done to protect other components from excess voltage and to provide a reliable and stable voltage source for a wide range of applications.

To make use of the Zener breakdown effect, the anode of the diode is connected to a positive voltage source, while the cathode is connected to an appropriate load. This arrangement sets up a situation where the voltage drop across the junction increases with increasing current. When the Zener breakdown voltage is reached the voltage drop across the junction remains the same and the current is regulated. The breakdown voltage specified in the CMSZ5257B BK datasheet is 5.2V, with a 200mA limit. This diode is of the designed such that its reverse leakage current is low, so that it can withstand higher reverse voltages without any problems.

Conclusion

As mentioned, the CMSZ5257B BK is a single Zener diode with an avalanche breakdown voltage of 5.2V and an operating current of 200mA. It provides an affordable and easy to use solution for voltage regulation, voltage reference, surge protection and DC/DC converters. It is small, low power and provides a stable, consistent and regulated output, making it an ideal choice for a wide variety of applications.