FMU-12S

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Diode Configuration:	1 Pair Common Cathode
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	200V
Current - Average Rectified (Io) (per Diode):	5A
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 2.5A
Speed:	Fast Recovery = 200mA (Io)
Reverse Recovery Time (trr):	400ns
Current - Reverse Leakage @ Vr:	50µA @ 200V
Operating Temperature - Junction:	-40°C ~ 150°C
Mounting Type:	Through Hole
Package / Case:	TO-220-3 Full Pack
Supplier Device Package:	TO-220F

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Diodes - Rectifiers - Arrays: FMU-12S Application Field and Working Principle

The FMU-12S diode array rectifier is a low-cost, unidirectional semiconductor device used to rectify current. This type of semiconductor is called an Array of Friends (AFTE) rectifier. It has various names such as AFTE rectifier diode, array rectifiers, and series-connected diodes. The device is commonly used in a wide range of applications such as power converters and switch-mode power supplies.A rectifier is a device that converts AC (alternating current) to DC (direct current). A diode is a one-way valve that only allows current to flow in one direction while blocking it in the other. The FMU-12S is an array of twelve diodes connected in series, thus providing a “complete bridge” rectification. This means that properties and characteristics can be derived from this type of rectifier which are usually derived from other types of rectifiers such as half-wave, full-wave, and bridge rectifiers.The main advantage of using an array of diodes rather than using single or discrete diodes is that it provides a much higher power handling capability. The maximum reverse voltage rating of the array is up to 1000V, which is much higher when compared to other types of rectifiers such as half-wave and full-wave. Furthermore, the array also provides better efficiency since it reduces the power lost in the rectification process.The material used for constructing this type of rectifier is typically silicon. It has a low forward voltage drop and a high current capacity. This type of rectifier also provides a low-impedance path for current flow through its junction.In terms of its application, the FMU-12S is ideal for applications such as AC/DC switching power supplies, AC to DC converters, uninterruptible power supplies, and adjustable speed drives. It can also be used to replace existing diodes or discrete rectifiers in such devices. Furthermore, the device can also be applied in motor control and lighting applications.In terms of its working principle, the FMU-12S rectifier array utilizes resistive voltage drops due to the current flow through the diodes. When the supply voltage exceeds the forward-biased voltage of the leading diode, current flow commences in the forward direction. As the diode forward voltage drop is progressively reduced, this current flow is increasingly diverted to the trailing diode. This process is repeated for each diode in the array until the total current flow is fully rectified.The FMU-12S is a powerful yet cost-effective device that can be used in a wide range of applications. It provides low-cost, high power handling capabilities and better efficiency when compared to other types of rectifiers. The device is composed of twelve diodes connected in series, thus providing a “complete bridge” rectification, which makes it perfect for applications such as AC/DC switching power supplies, AC to DC converters, uninterruptible power supplies, and adjustable speed drives. The device utilizes resistive voltage drops due to the current flow through the diodes to rectify current.

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