1N485B

Series:	--
Packaging:	Bulk
Part Status:	Active
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	200V
Current - Average Rectified (Io):	200mA
Voltage - Forward (Vf) (Max) @ If:	1V @ 100mA
Speed:	Small Signal =
Current - Reverse Leakage @ Vr:	25nA @ 175V
Capacitance @ Vr, F:	--
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	DO-35
Operating Temperature - Junction:	175°C (Max)
Base Part Number:	1N485

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Introduction

A 1N485B rectifier diode is a general-purpose rectifier diode that is used in a wide range of circuits. It is a semiconductor diode which allows current to pass to flow in one direction only. Generally, its use is limited to low-power signals such as in circuits with a signal voltage of less than one volt.

Application Field

The 1N485B can be used in a variety of applications. It is most commonly used in circuits as a reverse biased diode to prevent current from flowing backwards, since it can block current in the reverse direction when reverse biased. This type of rectifier is often used in DC-DC converters, voltage regulators and a variety of other low-voltage power supplies.The 1N485B can also be used as a shunt diode to protect sensitive electronic components from high voltage, as well as a bias diode in electronic circuits. In addition, it\'s often used as a diode rectifier to convert AC voltage input at low voltage levels, such as telephone lines and wall outlets.

Working Principle

The 1N485B consists of a p-type semiconductor material and an n-type semiconductor material. When the diode is connected in the forward bias direction, with the P and N layers connected to the positive and negative terminals of a voltage source respectively, a current flows through the device, with no voltage drop across the diode. This is known as forward bias and allows current to flow in only one direction.When the diode is connected in the reverse bias direction, with the P and N layers connected to the negative and positive terminals of a voltage source respectively, no current flows through the device and it blocks current in the reverse direction. This is known as reverse bias and is the most common use of a 1N485B rectifier diode.

Conclusion

The 1N485B rectifier diode is a versatile semiconductor diode which can be used in a variety of applications. Most commonly it is used as a reverse biased device, to prevent current from flowing in the reverse direction, in low-power signal applications. It can also be used as a shunt diode, a bias diode, and for AC-DC conversion at low voltages.

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