CMPZ5259B TR

CMPZ5259B TR application field and working principle

Diodes – Zener single present a vast variety of applications in electronics. The CMPZ5259B TR is a high-voltage Zener diode designed to protect applications from overvoltage conditions. CMPZ5259B TR is built up in a very small SOT-23 package, and is suitable for all kinds of applications, including SMPS, high frequency inverters, load switches, automotive DC-DC converters, mobile equipment, etc.

The CMPZ5259B TR offers a wide operating temperature range from -55°C to 125°C. It is capable of absorbing up to 5 amps at 25°C with a low reverse voltage of 5.1V. This diode can handle up to 1W, and also provides an ESD protection of up to 15kV.

Working principle

The working principle of the CMPZ5259B TR Zener diode is a form of avalanche breakdown. The Zener diode is designed to breakdown at a specific voltage when the anode is forward biased. When a voltage higher than the breakdown voltage is applied, the Zener diode will conduct current. The amount of current that flows through the diode is determined by the current rating of the diode.

When the voltage across the diode is greater than the reverse breakdown voltage, the diode will conduct current and dissipate the excess energy. This mechanism gives the Zener diode protection against overvoltage, as excess energy is dissipated and limited to the breakdown voltage.

Applications

The CMPZ5259B TR Zener diode can be found in common applications such as SMPS, high frequency inverters, load switches, automotive DC-DC converters, mobile equipment, etc. Its low reverse voltage and high current capability makes it ideal for applications that require high-voltage protection.

The CMPZ5259B TR is also used in audio and video equipment, where high-voltage protection is needed. It is commonly used to protect digital signal processors, signal receivers, switches, and transistors from overvoltage. The Zener diode will dissipate the excess power, limiting it to the safe voltage.

The CMPZ5259B TR is also used to protect sensitive components from overvoltage and electrostatic discharge, as it can handle up to 1W and 15kV ESD protection. It is also commonly used for protection against power surges, further protecting sensitive components from damage.

Conclusion

The CMPZ5259B TR Zener diode offers a wide range of applications in electronics. Its low reverse voltage and high current handling capabilities make it ideal for various applications that require protection against overvoltage. It can handle up to 1W and 15kV of ESD protection, making it suitable for protecting sensitive components from damage. It is commonly used in audio and video equipment, digital signal processors, switches and transistors, and power surges.