1N4948GP/54

Series:	SUPERECTIFIER®
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	1000V
Current - Average Rectified (Io):	1A
Voltage - Forward (Vf) (Max) @ If:	1.3V @ 1A
Speed:	Fast Recovery = 200mA (Io)
Reverse Recovery Time (trr):	500ns
Current - Reverse Leakage @ Vr:	1µA @ 1000V
Capacitance @ Vr, F:	15pF @ 4V, 1MHz
Mounting Type:	Through Hole
Package / Case:	DO-204AL, DO-41, Axial
Supplier Device Package:	DO-204AL (DO-41)
Operating Temperature - Junction:	-65°C ~ 175°C
Base Part Number:	1N4948

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1N4948GP/54 Application Field and Working Principle

Diodes - Rectifiers - Single

The 1N4948GP/54 is a diode that falls under the Single category of rectifier diodes. It is a silicon carbide planar type of diode with a high current and low voltage rating. It is mainly used in AC switching or rectification of high voltage power supplies. It is an epitaxial-based diode and consists of a number of layers, including a plain silicon carbide substrate and a middle layer of silicon nitride acting as an insulation. The 1N4948GP/54 diode is most commonly used in AC to DC power conversion circuits. The ratio of total current carrying capacity to its reverse voltage rating is approximately two times higher when compared to other standard silicon or selenium rectifier diodes. This makes 1N4948GP/54 a highly efficient, cost-effective and reliable device for the application of AC to DC conversion. It can also be used as a current regulator in the field of power electronics, owing to its higher current-voltage rating.

The 1N4948GP/54 diode comprises of two differently shaped regions on its surface - anode and cathode. The anode is connected to the positive end, while the cathode is connected to the negative end. When a positive voltage is applied to the anode, the diode starts to conduct and allow electrons to flow from the cathode, to the anode. On the other hand, when a negative voltage is applied, the electrons are not allowed to pass from the anode to the cathode and the diode does not conduct. This phenomenon is known as the rectification process and helps in the conversion of AC to DC.

In addition to its application in AC to DC conversion, the 1N4948GP/54 can also be employed for voltage clamping, controlling the excessive voltage generated in power operations and preventing over-voltage and over-current. Its unique characteristics, such as high current carrying capacity and low reverse leakages from the anode to the cathode make this device significantly ideal for these applications. It can also be employed as an essential element in power electronics applications such as semi-conductor based converters, including DC-AC, AC-AC and AC-DC converters.

The 1N4948GP/54 has a maximum operating temperature of 150°C and a storage temperature range of -55°C to 150°C. The device is also highly reliable, with a maximum reliability test of 200 cycles.

In conclusion, the 1N4948GP/54 is a rectifier diode that falls under the Single category and is an efficient and cost-effective device for a wide range of applications in AC to DC conversion, voltage clamping and controlling and also in power electronics. It is highly reliable and its unique features have made it an essential element in many power systems operations.

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