1N4148 BK

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	100V
Current - Average Rectified (Io):	150mA
Voltage - Forward (Vf) (Max) @ If:	1V @ 10mA
Speed:	Small Signal =
Reverse Recovery Time (trr):	4ns
Current - Reverse Leakage @ Vr:	25nA @ 20V
Capacitance @ Vr, F:	4pF @ 0V, 1MHz
Mounting Type:	Through Hole
Package / Case:	DO-204AH, DO-35, Axial
Supplier Device Package:	DO-35
Operating Temperature - Junction:	-65°C ~ 200°C

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Introduction

1N4148 is a type of diode that is used as a rectifier in single-phase applications. This diode is also commonly used as a switching or clamping device in digital circuits. It is a small-signal, low-power diode which has a very low voltage drop and fast-switching action. These features make it ideal for a wide range of applications, including power supplies, telecommunications, and audio equipment.

Application Field of 1N4148 BK

1N4148 BK is a high-speed, low-voltage diode that can be used in a variety of signal, switching and clamping applications. The notable applications of this diode include protection diode, positive temperature coefficient device, low-voltage signal switching, signal clamping, frequency selection, and high-speed switching.The 1N4148 BK diode is also used in power supplies due to its low voltage drop and fast-switching action. It is also used in telecommunications such as cellular phones, landlines, and internet modem circuits. It is often used in audio equipment and can be found in a variety of consumer electronics.

Working Principle of 1N4148 BK

A diode works by allowing current to flow only in one direction. When the diode is connected to a power source and an external load, the diode allows the current to flow from the power source to the load. This is known as forward biasing. When the diode is reverse polarized, current does not flow from the power source to the load, and the diode is said to be reverse biased.The 1N4148 BK diode consists of a p-type semiconductor and an n-type semiconductor. When a voltage is applied to the diode, the p-type semiconductor will attract the positive charges, while the n-type semiconductor will carry the negative charges. This allows current to flow in one direction through the diode.

Conclusion

The 1N4148 BK diode is a small-signal, low-power diode that can be used in a variety of signal, switching, and clamping applications. It is also used in power supplies and telecommunications equipment. The 1N4148 BK diode works by allowing current to flow in only one direction. This is due to the specialized semiconductor material used in construction of the diode.

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