CDLL5947D

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	82V
Tolerance:	±1%
Power - Max:	1.25W
Impedance (Max) (Zzt):	160 Ohms
Current - Reverse Leakage @ Vr:	1µA @ 62.2V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	DO-213AB, MELF
Supplier Device Package:	DO-213AB

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CDLL5947D is a type of diode designed to protect electrical circuits from overvoltage caused by transients. The diode is made of a Zener, or voltage dependent voltage regulator, and a plastic encapsulated single Zener diode. It is used in many industrial and consumer products and can also be used in applications such as RF protection, overvoltage safeguards, and LED driver circuits. CDLL5947D has a Zener voltage of 4.7 V and a rated reverse breakdown voltage of 5.1 V. It is housed in a plastic encapsulated diode package with a typical thermal resistance of 0.5 °C/W and a maximum junction temperature of 125 °C. CDLL5947D can be used as a voltage protection component in many consumer and industrial applications. In consumer applications, it is commonly used to protect ICs, transistors, and other components from overvoltage caused by surges. It can also be used as a feedback component in LED driver circuits to prevent excessive current. In industrial applications, it can help stabilize the output voltage of DC-DC converters, minimize EMI and RFI interference in power supplies, and protect equipment from overvoltage conditions. CDLL5947D has a wide operational temperature range (-55°C to 125°C) and is capable of handling high power (2 W power dissipation). Its maximum operating temperature is rated at 125°C and its thermal resistance is 0.5°C/W. It can withstand continuous reverse voltages up to 5.1 V and pulse voltages up to 5.6 V. The working principle of the diode is based on the Zener effect, which occurs when a reverse-biased p-n junction is subjected to a high reverse voltage. The Zener voltage is determined by the doping concentration of the p-n junction. When the applied reverse voltage exceeds the Zener voltage, the diode begins to avalanche, allowing a controlled amount of current to flow through it, which results in a stabilized voltage output. The CDLL5947D is a useful component for many industrial and consumer applications, as it is capable of handling high power and can protect sensitive components from high voltage transients. Its wide temperature range and low thermal resistance also make it suitable for high power applications in harsh operating environments.

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