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Where can I get replacement 5 pin resistor array?

Posted: Thu Nov 01, 2012 1:53 am
by Dolphin26
I goofed while assembling my board, and put in the 5 pin resistor arrays next to the LEDs backwards. I was able to switch two of them around, but I destroyed one trying to get it out. Now I'm having trouble finding the part numbers for the parts supplied in the kit? Can anyone point me in the right direction?

Also, it looks like one of my LEDs is bad, so I need to find one of those too...

Thanks!!!

Re: Where can I get replacement 5 pin resistor array?

Posted: Thu Nov 01, 2012 2:15 am
by mahjongg
If you know the internal layout of the resistor network (all resistors tied together at one end, or "loose resistors") then you can easily create your own resistor network with common resistors. A trick is to count the number of pins, generally if its an uneven number its the first type, but is an even number it can be either type.

Re: Where can I get replacement 5 pin resistor array?

Posted: Thu Nov 01, 2012 9:54 am
by domesday
Seeing as how you could be anywhere in the world it is not easy for people to suggest where to order components from. Perhaps update your profile with your location then you might get some suggestions.

Re: Where can I get replacement 5 pin resistor array?

Posted: Thu Nov 01, 2012 9:59 am
by malakai
This thread had a pdf of the parts list.

http://www.raspberrypi.org/phpBB3/viewt ... st#p197640

Re: Where can I get replacement 5 pin resistor array?

Posted: Thu Nov 01, 2012 2:46 pm
by Gert van Loo
domesday wrote:Seeing as how you could be anywhere in the world it is not easy for people to suggest where to order components from. Perhaps update your profile with your location then you might get some suggestions.
e.g. if you're near Cambridge (UK!) you can collect some from me for free!

Re: Where can I get replacement 5 pin resistor array?

Posted: Thu Nov 01, 2012 4:49 pm
by Dolphin26
Ah, I'm in the US, specifically Palatine, IL. I was hoping to be able to get it via an internet order, probably folding in with other stuff. Is there a Element14 part number for them?

Thanks Gert for the offer!! :)

Re: Where can I get replacement 5 pin resistor array?

Posted: Thu Nov 01, 2012 6:03 pm
by boyusmaximus
I did the exact same thing, you are not alone!

I ordered the replacement part from Farnell and it works OK:

Description: RESISTOR NETWORK, 470R; Resistance:470ohm; Resistance Tolerance:± 2%; Power Rating:630mW; Voltage Rating:100V; Temperature Coefficient:± 100ppm/°C; No. of Elements:4; Resistor Case Style:SIP; Resistor Terminals:Radial Le

http://uk.farnell.com/jsp/search/produc ... KU=1612539

The manufacturer part is : 4605X-101-471LF

Re: Where can I get replacement 5 pin resistor array?

Posted: Thu Nov 01, 2012 6:47 pm
by Gert van Loo
boyusmaximus wrote:I did the exact same thing, you are not alone!

I ordered the replacement part from Farnell and it works OK:

Description: RESISTOR NETWORK, 470R; Resistance:470ohm; Resistance Tolerance:± 2%; Power Rating:630mW; Voltage Rating:100V; Temperature Coefficient:± 100ppm/°C; No. of Elements:4; Resistor Case Style:SIP; Resistor Terminals:Radial Le

http://uk.farnell.com/jsp/search/produc ... KU=1612539

The manufacturer part is : 4605X-101-471LF
Ideally you need a 1K resistor. 470 Ohms will not fail but make your LED's more bright.

Re: Where can I get replacement 5 pin resistor array?

Posted: Thu Nov 01, 2012 7:33 pm
by Dolphin26
boyusmaximus, I'm a little confused as the picture looks like it has 10 pins instead of the expected 5. Also, if I were to search for a 1K resistor array, I realize that I'd want 4 elements, but I'm not sure of how to tell the difference between the 5 pin variety where one side of each array is tied to a single pin, and the 8 pin variety that would have each resistor separate. How do you tell these apart from the specification if the picture doesn't match the actual package?

EDIT: OK, after reading the spec sheet on the link above, I think I've figured out how to read this. I suspect that this will do nicely for me:

http://www.newark.com/bourns/4605x-101- ... -101-102LF

BOURNS - 4605X-101-102LF - RESISTOR, BUS RES N/W, 4, 1KOHM, 2%, SIP


RESISTOR, BUS RES N/W, 4, 1KOHM, 2%, SIP
Resistance: 1kohm
Resistance Tolerance: ± 2%
Power Rating: 630mW
Voltage Rating: 100V
Temperature Coefficient: ± 100ppm/°C
No. of Elements: 4
Resistor Case Style: SIP
Filter Terminals: SIP
RoHS Compliant: Yes

Does that look ok? Also, what specs should I look for when replacing a LED?

Re: Where can I get replacement 5 pin resistor array?

Posted: Fri Nov 02, 2012 12:42 am
by Dolphin26
I found what I needed by first using a Gertboard part list from here:

http://qdosmsq.dunbar-it.co.uk/blog/201 ... arts-list/

and then using the Farnell/Element14-UK site to look up the part numbers. (The part numbers didn't work on Newark/Element14-US site I use since I'm in the US, but I could translate between the sites by first looking it up on the Farnell side and then finding the same thing on the US side.)

I ended up getting these:

http://www.newark.com/jsp/search/produc ... ku=62J2801 - BOURNS - 4605X-101-102LF - RESISTOR, BUS RES N/W, 4, 1KOHM, 2%, SIP

http://www.newark.com/jsp/search/produc ... ku=14N9378 - LED

Thanks!