Diode specification for ignition switch circuit

Question

Hi,

 

I am installing EVO-ONE without T-Harness on my Standard Key 2015 Impreza. Fortin manual shows that I need 1X 1A and 1X 6A diode. I am searching for these diodes in local electronic project shops as I don't have access to Automotive 12V shops here. So, what is the spec for these diodes? Mainly, what is the forward voltage and reverse breakdown voltage? Forward, should it be 12V as it's a 12V circuit or should it be lower. Also, reverse breakdown, should it be higher  than 12V for safety (typical diodes with forward voltage of 1V will have around 50V reverse breakdown. So, this question is kid of redundant)?

 

Thanks.

Answer 1

I used 1n4002 for 1 Amp diode, just a general use 1 amp 100V diode. You could probley go down to 50V but I wouldn't go lower then that. Nothing to worry about on 100V.