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Diodes
Davegtst - 31/3/11 at 06:59 PM

I need a diode for my hayabusa clocks but don't know what i need. The bike has it built into the flasher relay/fusebox but i'm not using it as it will look untidy. I went into Maplin a saw a 'specialist' who wouldn't sell me anything incase i burnt the house down and sued them. All i need is a simple diode that lets current through one way and not the other but what are they called?

cosmick - 31/3/11 at 07:43 PM

what exactly are you trying to do?

garyo - 31/3/11 at 07:55 PM

Can you take the OEM diode one from the fusebox and copy that aspect of the circuit diagram?

r1_pete - 31/3/11 at 07:55 PM

An LN4004 will take up to 5 amps, so should do for low currect instrument wiring, but I'd be interested to know what you're doing.

Seems to be a lot of diode chat lately.....

austin man - 31/3/11 at 07:56 PM

are they someting like zender diodes ?? sure I read it somewhere

ReMan - 31/3/11 at 09:01 PM

Dont use a ZENER diode,

PM Krimc he's got loads spare

Davegtst - 31/3/11 at 09:08 PM

quote:
Originally posted by cosmick
what exactly are you trying to do?


On the wiring diag it has a blue wire going from the dash (neutral light) to the blue wire from the gear sensor. It shows a diode allowing current flow from the dash but not back to it. All i want to do is replace this diode with a similar one without having to chop about the original relay/diode box. I know it's not a zenner diode but i need to know is it a rectifier diode and what rating should it be?

snowy2 - 1/4/11 at 08:32 AM

The idiot at maplins should have sold you a diode, for what you want a small signal diode should do the job (they are usually black, about 8mm long with a silver band at one end, the band indicates the "blocking end"
they are called diode's or signal diodes, if you get some thing capable of a few amps you will have a fair bit of redundancy, it will cost pennies certainly less than a pound.
DO NOT GET A ZENNER DIODE these are used as simple regulators and they will allow current flow in BOTH directions.

Davegtst - 2/4/11 at 11:41 AM

Would this do it?

http://www.maplin.co.uk/3a-silicon-rectifiers-46405

iank - 2/4/11 at 05:35 PM

quote:
Originally posted by Davegtst
Would this do it?

http://www.maplin.co.uk/3a-silicon-rectifiers-46405


Yes

Davegtst - 2/4/11 at 07:08 PM

Thanks

Jason Fletcher - 2/4/11 at 10:06 PM

I'd go and get one of those assorted bags of diodes Maplins do. In then you will most likely find some IN4001, IN4002, IN4003, IN4004, IN4005, IN4006 or IN4007 in there and any will do what you want them to do. The other 100 in the pack you can keep for when the "expert" in Maplins refuses to sell you components for another 10mah circuit.... Reminds me of the time they wanted to sell me 200amp wire to light a LED just because it was 12v...

Jason