Diodes - Zener - Single

The CDLL5538 is a single Zener diode from Central Semiconductor. It is formed using a semiconductor substrate doped with an anode and cathode, creating a PN junction. The CDLL5538 is designed to protect electrical systems from damage while providing a reliable and constant voltage source.

Application Field

The CDLL5538 has applications in a range of electrical systems including those in the telecom, industrial, automotive, and consumer industries. It is ideal for use in circuits with high-voltage transients or spikes. The device is designed to protect components from over-voltage damage, and provides controlled breakdown when the regulation voltage is exceeded. In industrial settings, the diode can be used for ESD protection.

Working Principle

The CDLL5538 utilizes a Zener breakdown principle to provide a constant voltage across the anode and cathode contacts. During normal operation, the device has a reverse-biased II-V junction, and any electrons from the cathode side will be repelled. When the voltage reaches the Zener breakdown voltage, the junction enters an avalanche breakdown, resulting in a large electric current. This current is determined by the breakdown voltage and junction capacitance.

The CDLL5538 can provide as much as 5.5V of breakdown voltage and up to 100mA of peak current. In addition, the device features a low power dissipation and reverse current blocking capabilities of greater than 100mA.

Conclusion

The CDLL5538 is a versatile single Zener diode from Central Semiconductor. It is designed for use in a wide range of applications and provides reliable and constant protection from over-voltage damage. The device’s Zener breakdown principle and reverse current blocking capability make it a cost-effective choice for a variety of electrical systems.