1N4747A,113 Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	20V
Tolerance:	±5%
Power - Max:	1W
Impedance (Max) (Zzt):	22 Ohms
Current - Reverse Leakage @ Vr:	5µA @ 15.2V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-65°C ~ 200°C
Mounting Type:	Through Hole
Package / Case:	DO-204AL, DO-41, Axial
Supplier Device Package:	DO-41
Base Part Number:	1N4747

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The 1N4747A is an important component of the diode family, specifically classified as a single Zener diode. This diode is a low-power device which is extremely reliable and capable of performing a wide range of functions.In terms of its physical design, the 1N4747A is composed of a small, two-lead package. It consists of a semiconductor junction which has been doped in order to create two highly conductive, rectifying junctions. In other words, the 1N4747A is a two-terminal device that helps to regulate the voltage when a particular current flow is reached.The 1N4747A is particularly effective for use in small signal, noise filtering, and voltage regulation, where its low capacitance helps to reduce undesired signal transmission. It is also great for linear regulation, particularly since the amount of power dissipation, noise, and load variation can all be effectively monitored and controlled.Aside from its voltage regulation capabilities, the 1N4747A also serves to protect medium-power circuits from overvoltages. This is because of its built-in Zener breakdown voltages. As such, this diode is also ideal for power line protection, a function which is growing in relevance as technology continues to become increasingly complex and interconnected.In terms of its application field, the 1N4747A is typically used in audio equipment, motor controls, digital circuitry, computer systems, medical electronics, and other related devices. It is often used to provide power line protection, voltage regulation, noise filtering, rectification, and modulation.Overall, the 1N4747A is an essential component which is an invaluable addition to any device or system that needs effective voltage regulation. Its reliability, small size, and cost-efficiency make it an ideal choice for a wide range of applications.Now let’s discuss the working principle behind the 1N4747A. This diode is constructed with a semiconductor junction, which is doped to create two highly conductive, rectifying junctions. As current is pushed through the diode’s terminals, it becomes “forward-biased”, allowing it to start conducting electricity.Once a certain voltage is reached, the diode is then “reverse-biased”, meaning that it will stop conducting electricity and instead create a barrier. This is known as a “Zener break-down”. At this point, the 1N4747A stops allowing any more current to flow through it and instead becomes an effective voltage regulator.The 1N4747A therefore serves as an effective device for managing current, which is why it is used so often in the areas of voltage regulation and power line protection. In other words, it helps to keep devices and circuits running at a steady and reliable voltage, ensuring that they are not over- or under-powered.In conclusion, the 1N4747A is a highly effective and reliable device which serves as a great addition to any device or system that needs efficient voltage regulation. Its low power dissipation, noise filtering, and small size make it an ideal choice, while its Zener breakdown voltages help to protect circuits from overvoltages. Thanks to its wide range of application fields and its easy-to-understand working principle, the 1N4747A is an essential and widely used component in today’s technology-driven world.

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