MR2504

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Diodes are a type of semiconductor device that allow current to flow in one direction. A rectifier is a type of diode that acts like a one-way gate, allowing current to flow from the anode to the cathode, but not in the reverse direction. The MR2504 is an area effect diode designed for high frequency switching applications and is available in several package types and with varying power ratings.

MR2504 Overview

The MR2504 is a dual area-effect junction rectifier suite optimized for high frequency applications. It has a blocking voltage range of 35-85 volts, with a maximum peak repetitive blocking voltage (VBR(rms)) of 150 volts. The maximum preswitch current is 4 amperes with a maximum reverse-recovery time of 50ns, while the forward voltage drop is an impressive 1.3 volts at 2A. The MR2504 is available in both through-hole form factor and a SMD surface-mount package.

MR2504 Application Fields

The MR2504 rectifier offers exceptionally low forward and reverserecovery times, making it suitable for high frequency switching applications such as boost/buck converters, flyback converters, resonant converters and other topologies. It is also used for many applications in the aerospace, automotive, telecom and industrial sectors, such as variable speed drives, LED lighting and motor control systems.

MR2504 Working Principle

The MR2504 rectifier has two integral PN junctions, which form a symmetrical switch, separating the input and output circuit. It utilizes an reversed biased voltage to create an area of low conductivity in the N-region of the junction. This creates two depletion layers with an equal width at either side of the junction and forms a potential barrier blocking any current. When the gate voltage is increased to a predetermined value, the potential difference between the input and output circuits reduces, allowing current to flow.

The current flow continues through the rectifier until the predetermined operating value is reached, at which point the rectifier switches back to its off-state. This switching action is controlled by a JFET gate, which is responsible for opening and closing the PN junction. The MR2504 has an impressive switching frequency of up to 1MHz, meaning that it can handle higher frequency applications than traditional rectifiers.

Conclusion

The MR2504 is an ideal solution for high frequency switching applications, due its to low forward and reverse recovery times and ability to switch up to 1MHz. It is available in various package types and power ratings, and is well-suited for use in a range of applications in aerospace, automotive, telecom and industrial sectors.

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