MDK950-18N1W

Series:	--
Packaging:	Tray
Part Status:	Active
Diode Configuration:	1 Pair Common Cathode
Diode Type:	Standard
Voltage - DC Reverse (Vr) (Max):	1800V
Current - Average Rectified (Io) (per Diode):	950A
Voltage - Forward (Vf) (Max) @ If:	880mV @ 500A
Speed:	Standard Recovery >500ns, > 200mA (Io)
Reverse Recovery Time (trr):	18µs
Current - Reverse Leakage @ Vr:	50mA @ 1800V
Mounting Type:	Chassis Mount
Package / Case:	Module
Supplier Device Package:	Module
Base Part Number:	MD*950

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MDK950-18N1W Diode Arrays Application Field and Working Principle

Diode Arrays are semiconductor devices consisting of a number of individual diodes, either of the same type or of different types connected together in a common package. They are used as input protection, switches, hybrids and full-wave rectification. The diode array MDK950-18N1W is a specially designed device for use in power applications.

Application

The MDK950-18N1W has several different applications within the field of power applications. It is used in a variety of areas such as automotive, light emitting diode (LED) drivers, mains powered equipment, and industrial equipment. The MDK950-18N1W can be used as a protection device against power surges, inrush current limiting and isolation, overvoltage and transient protection, and as an alternative to using a single diode in applications where space is a concern.

Working Principle

The MDK950-18N1W is a diode array, which can be connected together in different configurations in order to provide different levels of protection from overvoltages, transients, and noise. The array is composed of two sets of three Schottky Diodes connected in parallel. The Schottky Diodes, also known as hot carrier diodes, are non-linear and are capable of carrying a lower forward voltage than normal silicon diodes, making them ideal for applications such as protection from input power surges, current limiting and noise filtering. In addition, these diodes are capable of handling up to 30A of continuous current and momentary peak currents up to 240A.When connected in series, the three Schottky diodes form a double “U” configuration to provide protection against inrush current and transients. This configuration helps the MDK950-18N1W prevent damage to the system by allowing it to absorb the transient energy and disperse it so that it does not reach the load. When used for overvoltage protection, the two sets of three diodes can be connected in parallel to the power supply, so that the body diode of each diode absorbs any additional voltage and dissipates it.In order to improve the performance of the diode array and maximize protection, the MDK950-18N1W can be used in combination with a voltage monitor or current limiter, which can be connected to the input terminals of the system and adjusted as necessary.

Conclusion

The MDK950-18N1W is a specially designed diode array, ideal for applications such as input protection, current limiting and noise filtering. By using the double “U” configuration and combining it with a voltage monitor or current limiter, the MDK950-18N1W can effectively provide protection against input power surges, transient voltages and overvoltages.

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