1N58xx

The 1N58xx series consists of 1N5817 through 1N5822. These are medium power, fast, low voltage Schottky diodes.

The 1N5817, 1N5818 and 1N5819 are 1 amp diodes, available in 20, 30 and 40 volt ratings respectively. The 1N5820, 1N5821 and 1N5822 are 3 amp diodes, available in 20, 30 and 40 volt ratings respectively.

Voltage	1 A part	3 A part
20 V	1N5817	1N5820
30 V	1N5818	1N5821
40 V	1N5819	1N5822

The 1N581x are typically packaged in the DO-41 case, and in many cases are interchangeable with the 1N4001 series. The 1N582x are typically packaged in the DO-201AD case, and in many cases are interchangeable with the 1N54xx series.

Being Schottky diodes, the 1N58xx parts have roughly half the forward voltage drop of the 1N400x/1N540x series diodes, which improves efficiency in applications where they are usually forward-biased, such as power converters. The cost is a lower voltage rating and higher reverse leakage.