CDLL3046B-1

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Diodes - Zener - Single

CDLL3046B-1 (also known as CDLL3046B-1 Maximum Continuous Current = 1A) is a low power silicon Zener diodes, specifically designed for use in high voltage state generator applications. It offers excellent high frequency operation, low series resistance and low leakages. CDLL3046B-1 is suitable for applications requiring high and smooth operation at low power and voltage compliance.

Application Fields

The CDLL3046B-1 is primarily used in applications requiring high and steady operation at low power and voltage compliance. It can be used in voltage regulator, voltage booster, inverter and battery charger circuits. With its low series resistance and high frequency operation, it can also be used in high power switching, high power transistors and high frequency circuits. Its low leakage current and high voltage tolerance provides excellent protection against damage caused by over-voltage, over-load and surge. Furthermore, CDLL3046B-1 is also used for PTC (Positive Temperature Coefficient) and NTC (Negative Temperature Coefficient) sensors for protecting circuits against temperature over-loads.

Working Principle

The CDLL3046B-1 operates on the principle of reverse bias. When a negative voltage is applied to the anode, electrons are attracted to the anode. Due to the increased negative charge, the device’s junction barrier is lowered and current begins to flow in the reverse direction. This reverse current is limited by the Zener voltage at which point the diode breaks down and the current abruptly rises. This breakdown voltage is determined by the amount of doping inside the diode and is known as the Zener voltage. After this breakdown occurs, the reverse current will be stable and is referred to as the Zener current. The Zener current is usually much lower than that of the reverse bias and can be controlled by the amount of doping of the diode. The CDLL3046B-1 operates over a wide range of Zener voltages from 5V to 95V.

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