1N5822 diodes

[john2k]

When using a 1n5822 diode, does a small amount of current still get through the direction it's not supposed to? Enough to power something that works on very few milliamps ? Because when I plug in a multimeter in the direction, it still reads a voltage but if I plug in something like a bulb it won't light up.

 

[BobK]

Yes, up to 2 mA at 25C and 20 mA at 100C

datasheet

Bob

 

[john2k]

Yes, up to 2 mA at 25C and 20 mA at 100C

datasheet

Bob

Thank you

 

[Harald Kapp]

This effect is called reverse leakage current. Every semiconductor shows this effect to varying extend.
The 1N5822 datasheet from ST for example shows this parameter on page 2 in the table labeled "STATIC ELECTRICAL CHARACTERISTICS".
It is also shown in the OnSemiconductor datasheet linked by @BobK where it is called "Maximum Instantaneous Reverse Current".