rectifier diodes

pterodactyl

Been Around the Block
Is a rectifier diode pretty much a standard diode? I found some for cheap and was thinking about using one along with a headlight relay.
They are 1n4004 1A btw.
 
Yes, you can treat them like standard diodes.

I'm concerned about the application, though. Every headlight I know of will pull more than 1A, so you might fry your diode, depending on what your plans are.
 
Thanks, Its to try and diode the coil for a relay. The oem relay has the diode built in. It looks like it goes to the hi beam switch.

It's on a 81 xj 550. It also goes through a diode block from the alternator.
 

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OK. So you only want the headlight to turn on when the engine is on? Or were you after some other goal? Maybe just providing a more direct power line to the headlight to ensure things are brighter?
 
Thanks yeah the oem relay has a diode across the coil. I had a little Panasonic relay that would mostly just buzz. I made a adaptor for a external diode. I used a 1a 1000 volt diode instead of a 400 volt and it seemed to work fine. I think it's for spikes in the charging system. The bike has to have the relay with a diode though for the headlight to work the way it should. It also goes through a diode block from the alternator. Well at least the juice wont flow the wrong way lol
 
Yamaha has always had some weird idea's about lighting, at least from XS650 onwards
 
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