CMZ5918B BK

The CMZ5918B BK is a single Zener diode used for a variety of applications. It is a three-terminal Zener diode with anode, cathode and gate contacts, and it works in the reverse-biased junction breakdown mode. The diode can be used in applications such as overvoltage protection, backup power, data line protection, and filters for switching power supply applications.

The Zener diode works by having two p-n junctions connected back-to-back and separated by a wide gap in the middle of the diode. This gap is called the depletion layer. When the diode is not conducting, the depletion layer prevents the electrons from crossing the gap. When a reverse bias voltage is applied to the diode, the width of the depletion layer decreases. When the reverse bias voltage reaches the breakdown voltage of the diode, the electrons are able to cross the gap, and the diode conducts current.

The CMZ5918B BK offers high reliability and good ESD protection. It is able to withstand reverse bias voltage up to 18V and has a maximum continuous current of 170mA. It is available in the E-1 and D-1 packages and is compatible with lead-free and RoHS compliant solder such as SAC305. It can be used in applications such as overvoltage protection, data line protection, and a filter for switching power supply applications.

The CMZ5918B BK is designed specifically for high-speed switching power supply applications. It has a forward-blocking capability of up to 35A and a fast turn-off behavior. The diode has a small-signal capacitance of less than 1.5 pF, which is suitable for high-frequency applications. It also offers a low thermal resistance of only 5K/W which reduces heat dissipation and increases its lifetime.

The CMZ5918B BK is a versatile diode capable of a wide variety of applications requiring reverse-biased junction breakdown. It offers high reliability, low thermal resistance, fast turn-off behavior and ESD protection. It can be used for overvoltage protection, backup power and data line protection, as well as for filter applications in switching power supply.