CDLL5918C

CDLL5918C Application Field and Working Principle

CDLL5918C is a series of high voltage, low power zener diodes, packaged in a surface-mount SOT­-23 package. It has a high peak repetitive reverse voltage, up to 6V and a functioning current of up to 200 mA. The CDLL5918C is designed for portable electronic devices, and other low power applications, such as voltage regulation.

The CDLL5918C is a type of Zener diode, meaning that it is a two-terminal semiconductor device. Zener diodes are not like other types of diodes, they are specially designed to break down when the voltage across them exceeds a certain set level, thus allowing current to flow in a reverse direction. This is useful for voltage regulation and other purposes in which a specific voltage is desired.

The breakdown voltage of the CDLL5918C is determined by its zener breakdown voltage VZ. This specific Zener diode has a breakdown voltage of approximately 6 volts. The voltage across the Zener diode is determined by the relationship between the applied voltage and the reverse current flowing through the device. The Zener voltage will remain constant, regardless of temperature, or the current flow.

The CDLL5918C has a low operating current and a low junction capacitance. This combination makes it suitable for use in many applications where voltage stability is required, such as in regulated supplies and in thin film memory applications. The CDLL5918C’s ability to maintain consistent voltages over temperature ranges makes it popular for low power applications.

The CDLL5918C can be used as part of a three-terminal voltage regulator. In this configuration, a reference voltage is applied to the Zener diode, which is combined with a resistor, a voltage divider, and a bypass capacitor. The reference voltage applied to the Zener diode is the same as that applied to the output. This means that the Zener diode will maintain a constant output voltage, regardless of the load current, temperature or other environmental factors. The CDLL5918C is also useful in voltage reference circuits where a precise voltage output is desired.

In summary, the CDLL5918C is a low power, high voltage Zener diode, designed for use in low power applications such as voltage regulation. It has a low operating current, a low capacitance junction, and a constant breakdown voltage, regardless of temperature or current flow. It can be used as part of a voltage regulation circuit, and as part of a voltage reference circuit, for use in many applications.