CMKD4448 TR Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Diode Configuration:	3 Independent
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	75V
Current - Average Rectified (Io) (per Diode):	250mA (DC)
Voltage - Forward (Vf) (Max) @ If:	1V @ 100mA
Speed:	Fast Recovery = 200mA (Io)
Reverse Recovery Time (trr):	4ns
Current - Reverse Leakage @ Vr:	25nA @ 20V
Operating Temperature - Junction:	-65°C ~ 175°C
Mounting Type:	Surface Mount
Package / Case:	6-TSSOP, SC-88, SOT-363
Supplier Device Package:	SOT-363

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Introduction

The CMKD4448 TR is an array of rectifiers diodes developed by CMK Cells Inc. It is designed to be a low cost solution to power switching needs. This series of rectifiers can be used in a variety of applications, ranging from DC to AC power systems. It is designed to meet power switching requirements of high frequency rectified alternating current.

Features

The CMKD4448 TR rectifiers diodes feature four silicon rectifiers that are conveniently mounted onto an array. This array allows the diodes to be easily wired together for use in applications that require higher voltage. The diodes also feature a low forward voltage drop of 0.6V to 0.7V, with a higher current rating up to 5A. The series also includes an additional pin-out option to provide additional connection possibilities. The series of rectifiers also feature low reverse leakage current, low capacitance, and high peak surge current capabilities for more rugged use.

Applications

The CMKD4448 TR series of rectifiers diodes can be applied in a variety of applications, including motor controllers, power switches, electrical power systems, and AC-DC converters. In motor controllers, the diodes can be used to direct current across a specific path. In power systems, they can be used to control the current flow and provide protection against overcurrents. The diodes also have the capability to counteract transients and surges. In AC-DC conversion, the diodes can be used to direct current across an electrically isolated system.

Working Principle

The CMKD4448 TR rectifiers diodes can be used to control current through a metallic conductor and direct the current in one direction only. The diodes are made up of two layers of material, a semiconductor layer, and a metal layer called cathode/anode. As the voltage is applied across the two layers, the semiconductor layer provides a barrier so that the electrons in the metal layer are not able to open the barrier and pass through it. The diodes also feature a junction between the two layers that allows the current to flow in one direction only. This is known as a rectification effect. The current is directed in one direction, and the current is blocked in the opposite direction. This junction is called a p-n junction. The CMKD4448 TR rectifiers diodes also feature low reverse leakage, allowing for a low power loss in AC power systems. This feature allows for improved reliability and the ability to perform for longer periods of time.

Conclusion

The CMKD4448 TR rectifiers diodes provide a low cost solution to various power switching needs. The diodes feature four silicon rectifiers conveniently mounted onto an array, with a low forward voltage drop of 0.6V to 0.7V and a high current rating up to 5A. These diodes can be used in a variety of applications, ranging from motor controllers, power switches, and AC-DC converters. The array also offers a low reverse leakage current, low capacitance, and high peak surge current capabilities.

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