1N4448WS-HE3-18

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	75V
Current - Average Rectified (Io):	150mA
Voltage - Forward (Vf) (Max) @ If:	720mV @ 5mA
Speed:	Small Signal =
Reverse Recovery Time (trr):	4ns
Current - Reverse Leakage @ Vr:	5µA @ 75V
Capacitance @ Vr, F:	--
Mounting Type:	Surface Mount
Package / Case:	SC-76, SOD-323
Supplier Device Package:	SOD-323
Operating Temperature - Junction:	-55°C ~ 150°C

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Introduction

1N4448WS-HE3-18 is a rectifier diode that has many uses in the electronics industry. The diode has a number of unique characteristics that make it suitable for a variety of applications, including power rectification, signal switching, and protection from inductive kickback. In this article, we will discuss the application field and working principle of 1N4448WS-HE3-18.

Application Field

1N4448WS-HE3-18 has a wide range of applications, such as in power rectification, signal switching, switched mode power supply (SMPS), switching regulators and relays. The diode can be used in AC to DC and DC to DC power conversion applications and can be used in power supply applications, where it is ideal for rectifying AC voltage signals, such as the voltage signal produced by an AC generator.

It can also be used in electronic circuits designed to produce a variable voltage signal. The diode can also be used in radio frequency (RF) circuits, as it is able to withstand high-frequency oscillations. For example, it can be used to eliminate electrical interference between two circuits. In addition, the diode can be used as a protection diode for inductive kickback when connected in reverse across a solenoid, relay, or motor.

The diode can also be used in signal processing applications, such as audio circuits. Being fast switching and robust, it allows for a clean signal response. The diode can also be used in line noise suppression applications, as it is able to filter out unwanted noise signals while allowing useful signals to pass through.

Working Principle

1N4448WS-HE3-18 is a rectifying diode, which allows current to flow in only one direction. The diode consists of two layers of semiconductor material, one positively charged and the other negatively charged. When a voltage is applied to the diode, the biased charges attract, creating a low internal resistance path. When the voltage is reversed, the charges repel, creating a high resistive path.

The frequency range of the 1N4448WS-HE3-18 rectifier diode is from DC to around 500MHz, and it has a maximum reverse recovery time of 1.2 microseconds. The maximum forward current for the diode is 0.4A, with a peak repetitive reverse voltage of 50V. The maximum forward surge current of the diode is 5A.

The 1N4448WS-HE3-18 is a unidirectional diode, meaning that it is only capable of passing current in one direction. This makes the diode ideal for power rectification applications, as it eliminates the need for an ideal diode bridge, which is more complex and costly. Therefore, the 1N4448WS-HE3-18 is an ideal solution for rectifying an AC voltages, such as the voltage produced by a generator.

The 1N4448WS-HE3-18 is also fast switching, with a forward voltage drop of approximately 0.7V at a forward current of 400mA. This allows for fast and efficient switching in signal switching applications. The diode is also robust and withstands a wide temperature range, from -55°C to +150°C, making it suitable for a variety of environments.

Conclusion

1N4448WS-HE3-18 is a rectifier diode that can be used in a variety of applications, such as power rectification, signal switching, and protection from inductive kickback. The diode has a fast switching response, robust construction and wide temperature range. It is also an ideal solution for AC to DC and DC to DC power conversion applications, and is capable of passing current in only one direction. Overall, the 1N4448WS-HE3-18 is a versatile and reliable rectifier diode.

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