203DMQ100

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Diode Configuration:	1 Pair Series Connection
Diode Type:	Schottky
Voltage - DC Reverse (Vr) (Max):	100V
Current - Average Rectified (Io) (per Diode):	200A
Voltage - Forward (Vf) (Max) @ If:	1.03V @ 200A
Speed:	Fast Recovery = 200mA (Io)
Current - Reverse Leakage @ Vr:	3mA @ 100V
Operating Temperature - Junction:	-55°C ~ 175°C
Mounting Type:	Chassis Mount
Package / Case:	TO-244AB
Supplier Device Package:	TO-244AB

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203DMQ100 - Diodes - Rectifiers - Arrays

The 203DMQ100 is a three-diode, single-phase, half-wave silicon rectifier array intended for use where reverse recovery time, forward voltage drop, and surge current ratings are important design considerations. This device offers a very low switching loss by eliminating the use of a discrete diode bridge in the forward direction.

Application Field

The 203DMQ100 rectifier can be used in applications such as automotive lighting modules, LED lighting, LCD bias power supplies, AC/DC and DC/DC converters, motor drives and controllers, and power adapter applications. It is a low cost and low thermal resistance device suitable for high frequency operations thanks to its very fast switching speed.

Working Principle

The 203DMQ100 operates by rectifying an AC voltage into a DC voltage. The device contains three diodes, which are connected in series to a common cathode. The diode arrangement allows current to pass in the forward direction when the anode of the device is positive with respect to the cathode. It also blocks currents in the reverse direction.The device is designed to limit the reverse current during a reverse conduction period. Reverse leakage current is further minimized due to its low voltage drop. This makes the 203DMQ100 handy for applications that require a low power consumption and high efficiency. The forward current rating of the device determines the allowed current when the anode is positive with respect to the cathode. The reverse voltage rating of the device is the highest reverse voltage that can be blocked. The surge current rating is the maximum current that can be handled by the device for a few milliseconds without permanent damage.

Important Parameters

The 203DMQ100 is available in a variety of packages and has several important parameters that should be considered when selecting the right device for an application. These parameters include the forward voltage drop, surge current rating, and reverse voltage rating.The forward voltage drop is the voltage across the device when a forward current is flowing through it. It is determined by the forward current and the internal resistance of the device. The surge current rating is the maximum current allowed in short time intervals (typically a few milliseconds) without permanent damage. This rating is affected by the junction temperature of the diode and its overload rating. The reverse voltage rating is the highest voltage applied in the opposite direction of the forward voltage without damaging the device.

Conclusion

The 203DMQ100 is an efficient and cost-effective device suitable for applications that require reverse recovery time, forward voltage drop, and surge current ratings. It is easy to mount, making it perfect for high frequency operations. Its reverse leakage current is minimized due to its low voltage drop, making it suitable for applications that require low power consumption and high efficiency. Its forward voltage drop, surge current rating, and line voltage rating are important parameters to consider when selecting the appropriate device for an application.

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