Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	75V
Current - Average Rectified (Io):	150mA
Voltage - Forward (Vf) (Max) @ If:	1V @ 10mA
Speed:	Small Signal =
Reverse Recovery Time (trr):	4ns
Current - Reverse Leakage @ Vr:	5µA @ 75V
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 ~ 175°C
Base Part Number:	1N4148

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1N4148-T Application Field and Working Principle

Introduction

The 1N4148-T is a standard silicon switching diode that is well known for its high speed and low capacitance. This diode is a common choice for applications that require a fast switching time. The 1N4148-T has a maximum forward current of 80 mA and a maximum reverse voltage of 75 V. It is available in both through-hole and surface-mount packages.

Classification

1N4148-T belongs to the family of diodes, rectifiers more specifically single diode category. It is a popular choice for its fast switching time, low capacitance and fast responding rate.

Application Fields

1N4148-T can be used in a variety of applications. This diode can be found in a variety of circuits such as overvoltage protection, waveform clamping, flyback protection, and switch mode power supply circuits. It is also used in data communication and consumer electronics such as consumer audio and video products.

Working Principle

The 1N4148-T is an ideal diode that operates as a rectifier, switching device, and protection for electrical circuits, with fast reverse recovery time. It is a symmetrical 4 layer semiconductor device that uses a layer of p-type and n-type material to create the diode junction.When forward biased, the diode allows current to flow in one direction, from the anode (positive) to the cathode (negative) and blocks current from flowing in the opposite direction. When this diode is reverse biased, it prevents current from flowing in either direction. The 1N4148-T also has a fast reverse recovery time, which means that it can be turned off quickly after current has been turned off or a signal is no longer present. In this way, it protects delicate components in the circuit.

Conclusion

The 1N4148-T is a popular choice for applications that require a fast switching time. It has a maximum forward current of 80 mA and a maximum reverse voltage of 75 V. It can be used in a variety of applications such as overvoltage protection, waveform clamping, flyback protection, switch mode power supply circuits, consumer audio, video and data communication products. The 1N4148-T is a 4 layer semiconductor device that uses a layer of p-type and n-type material to create the diode junction and block current from flowing in either direction when it is reverse-biased. Finally, the 1N4148-T has a fast reverse recovery time, which makes it ideal for protecting delicate components in the circuit.

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