1N4947-AP

Series:	--
Part Status:	Obsolete
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	800V
Current - Average Rectified (Io):	1A
Voltage - Forward (Vf) (Max) @ If:	1.3V @ 40V
Speed:	Fast Recovery = 200mA (Io)
Reverse Recovery Time (trr):	250ns
Capacitance @ Vr, F:	15pF @ 4V, 1MHz
Mounting Type:	Through Hole
Package / Case:	DO-204AL, DO-41, Axial
Supplier Device Package:	DO-41
Operating Temperature - Junction:	-55°C ~ 150°C

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Diodes - Rectifiers - Single

A single rectifier diode, such as the 1N4947-AP, is an electrical component used to create a unidirectional current flow. It is a simple one-way switch, allowing current to flow in only one direction and blocking any current from flowing in the opposite direction. The 1N4947-AP is a commonly used fast recovery diode with a reverse-recovery time of 100-nanoseconds.

1N4947-AP Specifications

The 1N4947-AP is an ultrafast fast-recovery rectifier diode with an external coating of white paint to identify it from other diodes. The diode is designed to handle a peak reverse voltage of 400V, a current of 5 A, and a forward voltage of 1.0V. The 1N4947-AP also has a total power dissipation of up to 10W and a reverse recovery time of 100ns.

Working Principle

The 1N4397-AP diode works by allowing electric current to pass through it in only one direction, while blocking the current from flowing in the opposite direction. The 1N4397-AP has a junction between its two electrodes where, when a positive voltage is applied to the anode, it allows current to flow through it and into the cathode. Similarly, when a negative voltage is applied to the anode, it blocks the current from flowing through the diode. This feature of the 1N4397-AP is known as reverse bias and allows the diode to act as a one-way valve for electric current.

Application Fields

The 1N4947-AP diode can be used in a variety of applications, including switch-mode power supplies, motor control circuits, and solenoid control circuits. The fast recovery time of the 1N4947-AP makes it suitable for use in switching circuits, where its role is to control the flow of current. The 1N4947-AP can also be used in audio circuits, where its fast switching time helps to control the flow of power and maintain a clean signal. The 1N4947-AP is also capable of handling higher voltages and currents, making it suitable for use in power supply circuits and high-current applications. The 1N4947-AP diode is an essential component in many electronic circuits and its wide range of applications makes it a commonly used component in the electronics industry. Its fast switching time and ability to handle higher voltages and currents make it an ideal choice for high-speed and high-power applications.

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