FR20M05

Series:	--
Packaging:	Bulk
Part Status:	Active
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	1000V
Current - Average Rectified (Io):	20A
Voltage - Forward (Vf) (Max) @ If:	1V @ 20A
Speed:	Fast Recovery = 200mA (Io)
Reverse Recovery Time (trr):	500ns
Current - Reverse Leakage @ Vr:	25µA @ 800V
Capacitance @ Vr, F:	--
Mounting Type:	Chassis, Stud Mount
Package / Case:	DO-203AB, DO-5, Stud
Supplier Device Package:	DO-5
Operating Temperature - Junction:	-40°C ~ 125°C

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Introduction

The FR20M05 is a single diode rectifier designed primarily for AC/DC application fields. It is equipped with a monolithic silicon surface mount package and is primarily used to minimize AC voltage ripple and reduce power consumption under light load conditions. FR20M05 are ideal for AC/DC switching applications, where low noise and low power consumption are critical.

Applications

The FR20M05 rectifier is ideally suited for AC/DC application fields, where high efficiency and low spike noise are important requirements. Common AC/DC applications include TV sets, radio tuning devices, DVD players, audio systems and AC-DC power supplies. Additionally, the FR20M05 is well-suited for replacement of heavier Schottky diodes in high-frequency converters.

Features

The FR20M05 rectifier features a monolithic, single piece, surface-mount package with a low thermal resistance. As such, it offers superior performance in applications that require high-power efficiency, low power consumption, and low noise. The FR20M05 has an extremely low thermal resistance of 350° K, which ensures that the part runs cooler during operation, and can thus operate with higher frequency. Additionally, the part features a relatively low forward voltage drop of 0.20V, which minimizes power consumption while providing superior power-efficiency. Furthermore, the FR20M05’s low thermal resistance also increases its current-handling capability, allowing it to handle higher currents while still running cooler than other rectifier diodes.

Working Principle

The FR20M05 rectifier operates on a simple principle – the combination of the forward voltage and the current passing through the diode creates a voltage potential, which produces a voltage drop across the diode as the current passes through it. The voltage potential acts to reduce the amount of power passing through the diode, and is usually a predetermined value, depending on the particular application.When an AC voltage source is applied to the FR20M05, the diode rectifier starts conducting in the forward direction and continues to do so until the source voltage becomes zero. At this point, the voltage potential across the diode is at its highest value, and the current passing through it is at its highest value. With the FR20M05’s low forward voltage drop, the amount of power passing through the diode is significantly reduced.In addition to this, the FR20M05 is also equipped with an internal thermal fuse. This fuse is activated when the temperature around the diode reaches a certain predetermined level, and it disconnects the diode entirely, preventing any further current flow or damage to the part.

Conclusion

The FR20M05 diode rectifier has many advantages over traditional Schottky diodes, including a low forward voltage drop, an internal thermal fuse, and a low thermal resistance. These features, combined with its compact, surface-mount package, make it an ideal choice for AC/DC applications, where high efficiency and low noise are important requirements. Its low forward voltage drop allows it to minimize power consumption in light load conditions, while its internal thermal fuse ensures that the part will always remain within safe operating temperatures.

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