CDLL984B

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Diodes - Zener - Single

CDLL984B is a single zener diode designed for various applications. It is typically used for general purpose applications, voltage regulation, voltage reference, and reverse voltage protection. Zener diodes are also known as voltage regulator diodes, and are designed to work as a voltage regulating device, holding a specific voltage level regardless of variations in current.

Working Principle

When the positive voltage applied to the zener diode is greater than the breakdown or zener voltage (Vz), current flows through it just like a normal diode. Under normal circumstances, when the reverse voltage applied is lower than the Vz, almost all current is blocked, so the diode acts like an insulator. However, if the reverse voltage applied is higher, the current will flow through the diode.

This is due to the depletion region of the PN junction becoming very thin at which point current can flow across it. This current is known as breakdown current, and it is the main function of the zener diode.

Since the zener diode does not draw current from the power source, it has a low power dissipation that ensures maximum efficiency regardless of the applied voltage.

Application Field

CDLL984B zener diodes are widely used in various applications. They are particularly suitable for use in circuit design where voltage regulation and voltage reference are necessary. For example, they can be used in regulators for lighting, voltage regulation for electronic device power supply, output buffer for D/A converters, and as a current source for microprocessor power supply.

In addition, CDLL984B diodes are also used as protection devices in circuits to protect them against overvoltage or transient over-currents. They are also used as circuit protection devices to prevent reverse voltage from entering a device. This can help improve the reliability and lifetime of the device.

CDLL984B is a versatile zener diode that can be used in a wide range of applications and has a wide operating temperature range, making it ideal for many applications.

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