CLL5251B TR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	22V
Tolerance:	±5%
Power - Max:	500mW
Impedance (Max) (Zzt):	29 Ohms
Current - Reverse Leakage @ Vr:	100nA @ 17V
Voltage - Forward (Vf) (Max) @ If:	1.25V @ 200mA
Operating Temperature:	-65°C ~ 200°C
Mounting Type:	Surface Mount
Package / Case:	DO-213AC, MINI-MELF, SOD-80
Supplier Device Package:	SOD-80

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Introduction
CLL5251B TR is a single diode Zener diode with a wide range of forward voltage ratings. It is designed to provide a regulated voltage output when used in a simple series arrangement with one or more other diodes in a rectifying circuit. This device is suitable for applications in which a voltage regulator is needed, such as motor control, industrial power supplies and medical equipment.Applications of CLL5251B TR
CLL5251B TR is especially suited for applications where the need for constant voltage output is essential. It is used most commonly in motor control applications, such as electric motors, dimmers and other controllers. Additionally, it can be found in numerous other applications, including industrial power supplies, medical equipment and industrial electronics. The CLL5251B TR can be used in conjunction with traditional Thyristors, IGBTs (Insulated Gate Bipolar Transistors) and other power switches to provide smooth and efficient control while minimizing distortion. The device is also suitable for flyback converters and switching regulators, as well as other 4-layer diode rectifiers and bridge rectifiers.Advantages of CLL5251B TR over other Zener Diodes
The main advantage of CLL5251B TR over other Zener diodes is that it offers a higher maximum current carrying capacity. The device has a maximum forward voltage rating of 1.2V and a reverse voltage breakdown rating of up to 5.5V. In addition, CLL5251B TR is more robust than many other Zener diode devices due to its high temperature resistance. This characteristic makes it suitable for use in applications where high temperatures are encountered, such as in industrial power supplies or motor control applications.The CLL5251B TR also offers a low power dissipation with a reverse current of up to 5mA, which is suitable for most applications. Furthermore, the device has a high surge current capability, allowing it to carry large currents over short periods of time.Working Principle of CLL5251B TR
The CLL5251B TR works by using the NPN and PNP transistors to form a diode bridge. The device has two anodes and two cathodes which form the bridge and allow current to pass in both directions.When a current is applied to the cathode of the CLL5251B TR, the NPN and PNP transistors act together to create a potential barrier. This potential barrier prevents further current from flowing through the device, thus regulating the voltage.The CLL5251B TR can be used in two ways: either in the forward-biased direction or in the reverse-biased direction. In the forward-biased direction, the current flows through the device and is clamped at a certain limits, creating a regulated voltage output. In the reverse-biased direction, the current flows in the opposite direction, creating a junction breakdown and preventing current from flowing at higher voltages.Conclusion
CLL5251B TR is an excellent single diode Zener diode designed for a wide range of applications, including motor control, industrial power supplies and medical equipment. It offers a higher maximum current carrying capacity than other Zener diodes and is capable of providing a regulated voltage output when used in a simple series arrangement.The device has a high temperature resistance, making it suitable for use in applications with high temperatures. Additionally, it has a low power dissipation with level reverse currents, as well as a high surge current capability. Finally, the CLL5251B TR works by using the NPN and PNP transistors to form a diode bridge. This bridge regulates the current, allowing it to be clamped at certain limits and providing a regulated voltage output.

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