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Looking for compatible replacement FETs for a Automotive blower motor resistor

BrianJ

Oct 30, 2014
4
Joined
Oct 30, 2014
Messages
4
I have 2 different components:

2 Rectifiers (p/n 5105, to-220 style )
2 Rectifiers (p/n 4101 EC, to-220 style)

I believe one of these components are bad, in addition to the possibility of 3 large capacitors being bad.

The board these belong to is similar to:

Airtex-4P1581

http://www.ebay.com/itm/Airtex-4P1581-Blower-Motor-Resistor-/321528173968?pt=Motors_Car_Truck_Parts_Accessories&fits=Year:1995|Make:Ford|Model:Thunderbird&hash=item4adc929590&vxp=mtr


I have more time than money now and I know a few compontents wont cost me $120+

Any help finding the parts would be much appreciated.
 

Arouse1973

Adam
Dec 18, 2013
5,178
Joined
Dec 18, 2013
Messages
5,178
Can you take some pictures for us. Nice and close and clear taken in a well lit room.
Thanks
Adam
 

BrianJ

Oct 30, 2014
4
Joined
Oct 30, 2014
Messages
4
Here are some, I know not the best but it's the best I could get. I'll try taking some outside tomorrow.
 

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Arouse1973

Adam
Dec 18, 2013
5,178
Joined
Dec 18, 2013
Messages
5,178
Thanks for the photo's. The only thing I can find is a MCR506 which is an SCR but no sure, similar case which might have been updated from the TO-220. Can't find anything on the other part. This is a real mystery, someone else might have another idea of what they are. I'll keep looking and let you know if I find anything.
Adam
 

BrianJ

Oct 30, 2014
4
Joined
Oct 30, 2014
Messages
4
Thanks, I appreciate your help.

I just realized what caused this board to die was the motor shorting. Before I wasn't sure if it was the board just dying of heat or unclean power but it seems now it was feed back from the motor starting to short.

In that case I suppose the Rectifiers are the main problem and not the 3 large capacitors?

(I'm still working on getting pictures of the whole board)
 

BrianJ

Oct 30, 2014
4
Joined
Oct 30, 2014
Messages
4
Below I've attached the pictures of the board. Thanks in advance for you help











IMAG0043.jpg IMAG0042.jpg IMAG0041.jpg IMAG0040_1.jpg IMAG0039.jpg
 

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