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Electronics parts gurus: I want to find a specific capacitor ...
Posted by: deckeda
Date: September 30, 2007 02:12PM
Made by NEC, it's the MR301-9ES

I can find references to it all over the Internet but not necessarily a way to buy just two. They're worth about $2 each.

Two are used in the door lock controller for my '94 Accord, and the whole controller from Honda is about $120.

The board and all the various resistors and other components look OK to the eye, but even if they aren't I'd rather try $10 getting and replacing both caps instead of automatically tossing it all away and paying for a whole new controller board.

And if you're curious about the car's symptoms, the relays both actually work but when you lock a door (activating the rest to lock via the controller) one of the relays does it's chunka chunka chunka chunka chunka chunka chunka cycle about 20 times before stopping instead of just once like it's supposed to.

No damage to the car anyywhere; this is just a common issue with the power door locks on these cars "of a certain age."



Edited 2 time(s). Last edit at 09/30/2007 02:14PM by deckeda.
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Re: Electronics parts gurus: I want to find a specific capacitor ...
Posted by: deckeda
Date: September 30, 2007 02:20PM
Well, there are two controllers currently on eBay for about $20 + shipping. That may be worth a risk too.
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Re: Electronics parts gurus: I want to find a specific capacitor ...
Posted by: Filliam H. Muffman
Date: September 30, 2007 03:32PM
According to this datasheet, the MR301-9ES is not a capacitor. It is a relay.
[www.ortodoxism.ro]

Those are a lot harder to find, but with the exact specs it might be possible to find an equivalent part. One that fits the same holes will be tough.



In tha 360. MRF User Map
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Re: Electronics parts gurus: I want to find a specific capacitor ...
Posted by: Carm
Date: September 30, 2007 03:34PM
Get em.

Joe
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Re: Electronics parts gurus: I want to find a specific capacitor ...
Posted by: deckeda
Date: September 30, 2007 04:06PM
Relay --- that's what I meant, thanks. Now to find them.
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Re: Electronics parts gurus: I want to find a specific capacitor ...
Posted by: Panopticon
Date: September 30, 2007 04:37PM
Just guessing, but they're probably PC mount,12v low amp {<15a}.
Check these at All Electronics: [www.allelectronics.com]
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Re: Electronics parts gurus: I want to find a specific capacitor ...
Posted by: Filliam H. Muffman
Date: September 30, 2007 05:49PM
Quote
Panopticon
Just guessing, but they're probably PC mount,12v low amp {<15a}.
Check these at All Electronics: [www.allelectronics.com]

Close. 15A rating, 9V nominal operation, 225 Ohm primary, 40 mA nominal current. The one at AllElectronics might work but the specs for the NEC part indicate it is a little more sensitive. From the relative sizes of the NEC and Nais parts, I would guess it will fit.



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Re: Electronics parts gurus: I want to find a specific capacitor ...
Posted by: Lux Interior
Date: September 30, 2007 08:48PM
I've been looking for a flux capacitor.

I think some Libyans might be able to help me out.
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