BAT81 Alternate for LED switch project

[ThomsCircuit]

This project is for a mechanical 4 position 4 pole rotary switch where one of the poles will illuminate an number of LEDs based on the switches position.
power supply = 12v 500ma wall wart
Position 0 is static with a RED LED0
Position 1 illuminates LED1
Position 2 illuminates LED1,LED2
Position 3 illuminates LED1,LED2,LED3

*The other poles on the switch control the fans speed and monitor a SWING feature
Im asking if the BAT81 diode can be subbed with a diode i have on hand without degrading the LEDs brightness too much
The barrier diodes I have are BAT85. Will these work in place of the suggested BAT81s?


Thank you.
TB

 

[ChrisP58]

In your application, the BAT85 is probably the better of the two. though the difference is small.
The BAT81 has a current rating of 30 mA
The BAT85 has a current rating of 200 mA
When operated at the same current, the higher current rated device will usually have a lower forward voltage.

 

[ThomsCircuit]

In your application, the BAT85 is the better of the two.

AWESOME SAUCE! THANK YOU