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Old 4th October 2007, 06:32 PM   #1
profuse is offline profuse  United States
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Default What is this... fuse?

System: 12v automotive HID xenon ballast
Objective: I need to know whats the chip in the pic w/ the pointed arrows.

What is this... fuse?

if so, what kind is it? whats the equivalent type of fuse can be use?
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Old 4th October 2007, 07:26 PM   #2
profuse is offline profuse  United States
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or is it some sort of diode?
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Old 4th October 2007, 08:02 PM   #3
gni is offline gni  United States
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cap?
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Old 4th October 2007, 08:05 PM   #4
profuse is offline profuse  United States
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I doubt it. I think its the diode array bc it goes straight from 12vdc source.

Can someone confirm?
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Old 5th October 2007, 06:59 AM   #5
OzMikeH is offline OzMikeH  Australia
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I could be wrong, but it sure looks like a filter and I'd expect one on the input to a HID light power supply.

Those "chips" look like double barrelled ferrites.
then there is that little capacitor in between them from positive to negative.

It would be to stop noise from the switching in the step-up power supply from getting out.

After those will be a pick-off for some power for the smarts, a low ESR, high ripple current capacitor and a big fat track to a big fat chopper transistor. after that a small transformer then big voltages after that.

I think that transistor has dies and blown the links in the power supply. I suggest checking the vehicle wiring and see how over-rated the fuse (if any) is.

If all looks well does the vehicle have a HF radio antenna on the front barwork? check the antenna earth. Something else might be grounding itself via the HID light's ground.

Be very careful, that power supply can easily hurt you.

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Old 5th October 2007, 02:26 PM   #6
Eva is offline Eva  Spain
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I agree, these parts are dual inductors, RF filters.
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Old 8th October 2007, 07:24 PM   #7
profuse is offline profuse  United States
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Also, if I am able to power the ballast by grounding the actual case/chassis and 12vdc+ to the wire.

If I were to purchase on mouser.com, what do I look for?

Thanks,
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