bassett
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| posted on 15/2/09 at 03:35 PM |
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Hazard Diode Type
Hi, Think i deleted the last one accidently whoops! I have a sierra mnr loom and im using savage swtiches. I was using a switching diode maplins no
QL80. Problem is where it keeps blowing so i can use my indicators but cant use the hazards. Is there anything else i can use that wont blow and does
it have to be switching or not?
cheers
Adam
My MNR Blog Updated Jan 2010 - Track Day Prep Begins!
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Rod Ends
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| posted on 15/2/09 at 04:14 PM |
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it's only rated at 1/2 watt - that's why it fails.
QL81C - 3A Silicon Rectifier looks better.
[Edited on 15/2/09 by Rod Ends]
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bassett
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| posted on 15/2/09 at 05:10 PM |
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Cheers i can see that now on the site but had been recommended to try it. does the switching nature of the component matter at all?
Adam
My MNR Blog Updated Jan 2010 - Track Day Prep Begins!
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Rod Ends
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| posted on 15/2/09 at 05:30 PM |
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No- in this case the diode would just be acting as a one-way valve, allowing
current to flow in one direction but not the other.
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bassett
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| posted on 15/2/09 at 09:38 PM |
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Sounds good to me and for the money i cant really go wrong with giving it a try.
Thanks Again
Adam
My MNR Blog Updated Jan 2010 - Track Day Prep Begins!
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MikeRJ
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| posted on 16/2/09 at 08:41 AM |
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I'm not surprised a IN4148 wasn't up to the job, it's a small signal diode with a maximum forward current of only 0.2 A, and
that's at 25 degrees C. If a diode is specified for switching operations, it implies it's a fast diode, for use at high frequencies.
The inrush current of a 21 Watt indicator bulb would probably be of the order of 10-15 Amps peak. A 3 Amp rectifier such as 1N5401 can take that sort
of surge current with no problems.
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