MUR440HR0G

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The MUR440HR0G is a single rectifier Schottky diode. It has a large current handling capacity, high surge current rating, and low forward voltage drop. The device is available in an SMA package, so it can be used in both through-hole and surface-mount designs. It is frequenty used in power supplies, dc-dc converters, and other applications where high speed and high efficiency are required.

The MUR440HR0G is constructed from a high-grade, epitaxially-grown silicon wafer. It has a Schottky barrier formed between the p-type silicon and an aluminium electrode, which forms the diode’s anode. This allows the diode to have a very low forward voltage drop, usually in the range of 0.3 - 0.4V. The cathode of the diode is formed from an alloy of nickel and gold, and is connected to a second pin on the SMA package.

When in normal forward-bias mode, the MUR440HR0G rectifier diode will have a very low voltage drop and a very high current handling capacity. This makes the diode ideal for power supply applications, where the low voltage drop will ensure that the power supply is as efficient as possible. The diode can also handle a high surge current – up to 9A – so it can be used in circuits with high inrush currents.

In reverse-bias mode, the MUR440HR0G rectifier diode is still effective at blocking voltage. Its reverse leakage current will be very low, usually less than 1µA. This means that the diode can be used in synchronous rectifier circuits, where it can switch very quickly and effectively between forward-bias and reverse-bias.

The MUR440HR0G rectifier diode is a versatile device, and is suitable for a wide range of applications. Its low voltage drop and high surge current rating make it ideal for use in power supplies and dc-dc converters. Its fast switching speed makes it suitable for use in synchronous rectifier circuits. And its relatively low cost and small package size mean that it can be used in volume applications.

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