VS-70HFR100M

Series:	--
Packaging:	Bulk
Part Status:	Active
Diode Type:	Standard, Reverse Polarity
Voltage - DC Reverse (Vr) (Max):	1000V
Current - Average Rectified (Io):	70A
Voltage - Forward (Vf) (Max) @ If:	1.35V @ 220A
Speed:	Standard Recovery >500ns, > 200mA (Io)
Capacitance @ Vr, F:	--
Mounting Type:	Chassis, Stud Mount
Package / Case:	DO-203AB, DO-5, Stud
Supplier Device Package:	DO-203AB (DO-5)
Operating Temperature - Junction:	-65°C ~ 180°C

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Introduction:

The VS-70HFR100M is part of the line of high-frequency rectifier diodes specifically designed for application in the fast-switching high current rectification. It expands on the VS-60HFR line, designed for high frequency, fast switching and high-current rectification. This particular diode comes in a TO-220 package form and offers a maximum current rating of 100mA and a maximum repetitive reverse voltage rating of 70V.

Applications:

The VS-70HFR100M rectifier diode is primarily used for high frequency, fast switching, and high-current rectification. It is suitable for applications such as low-loss full bridge rectification for frequency converters, motor drives, renewable energy inverters, uninterruptible power supplies (UPS), and switched-mode power supplies (SMPS).

Working Principle:

Rectifier diodes such as the VS-70HFR100M are two-terminal semiconductor devices composed of a junction between two different types of semiconductor materials — a P-type and an N-type semiconductor. Such junctions form rectifying junctions, which allow electrical current to flow in only one direction. When a direct current (DC) voltage is applied across the two terminals of the diode, the one connecting the P-type to the N-type semiconductor p-n junction conducts electric current in the forward direction. This occurs as an electric field across the semiconductor junction is formed, due to the differences in electric potential of the two semiconductors, forcing the current to flow in one direction. This electric field also does not allow the electric current to flow in the reverse direction, resulting in an ‘open’ and no-current condition.

In terms of applications, the VS-70HFR100M is particularly useful in high-frequency rectification applications due to its unique design and fast-switching capability. The diode is specifically designed for low-inductance fast-switching action, meaning that the diode is optimally able to sustain and carry large load currents without any significant losses.

Conclusion:

In conclusion, the VS-70HFR100M rectifier diode is a high-frequency, high-current rectifier designed for use in applications such as frequency converters, motor drives, renewable energy inverters, uninterruptible power supplies (UPS), and switched-mode power supplies (SMPS) that require fast switching and high current capability. The diode works by allowing forward current to flow in one direction, and preventing reverse current from flowing, by forming an electric field across the p-n junction. Furthermore, its unique design allows for greater efficiency and less losses in cases of high load currents.

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