I've just bought a load of BHC caps off of Ebay, and very nice they are too.
But, they have 4 leads.
What is the pinout for 4 legged capacitors? Is one of them -ve, the remainder +ve?
Cheers,
Phil
But, they have 4 leads.
What is the pinout for 4 legged capacitors? Is one of them -ve, the remainder +ve?
Cheers,
Phil
I've got the same caps and you don't need pin2 and 3 it's only for secure connection.pooge said:
Well, it depends on which model you are talking about. If it is the 4 terminal series like the following, they are not just supports:
http://www.bhc.co.uk/pdf/aln20s.pdf
http://www.bhc.co.uk/pdf/aln20s.pdf
Hi,
I'll try and sort out a photo later on.
It does indicate that pin 2 should be negative (although pin 2 appeared ambiguous last time I looked), so I assume the others are either all positive, or just one, and the remaining two are support.
BTW meanman,
"1= positive(+)
5= negative(-)
2 and 3= nothing(for solid connection on the board)"
Did you mean 4=negative?
Thanks for all the replies. I don't think its anything like pooge suggested, but I could well be wrong.
Its a 4100uF 70V electrolytic, and its blue 🙂
Cheers,
Phil
I'll try and sort out a photo later on.
It does indicate that pin 2 should be negative (although pin 2 appeared ambiguous last time I looked), so I assume the others are either all positive, or just one, and the remaining two are support.
BTW meanman,
"1= positive(+)
5= negative(-)
2 and 3= nothing(for solid connection on the board)"
Did you mean 4=negative?
Thanks for all the replies. I don't think its anything like pooge suggested, but I could well be wrong.
Its a 4100uF 70V electrolytic, and its blue 🙂
Cheers,
Phil
Yes there are numbers, but if I recall, it quotes one of them as negative, and the rest are not described.
Anyway, they look like they're maybe ALP10A caps, so I'll see if I can find the datasheet.
Anyway, they look like they're maybe ALP10A caps, so I'll see if I can find the datasheet.
Maybe this is the spec:
http://80.168.111.40/servlet/AdminBHC?purpose=spec&partNo=ALP10A472DE100
The image shows 5 pins, which is confusing, but perhaps tallies with meanmans description.
http://80.168.111.40/servlet/AdminBHC?purpose=spec&partNo=ALP10A472DE100
The image shows 5 pins, which is confusing, but perhaps tallies with meanmans description.
Okay,
I've worked it out.
The pins were labelled 1, 2, 3, and - (I was confused before because I must of had the cap at an angle so that I thought there were two 1s!).
As indicated on the can, 1 is positive and negative is self explanatory.
So, I can see a voltage when I charge across those two pins. The other two offer no voltage. So, I guess they are for support.
They wouldn't be shielding would they? I assume that would affect the actual capacitance, so unlikely.
I didn't get time to take a photo, but can do for reference.
Cheers,
Phil
I've worked it out.
The pins were labelled 1, 2, 3, and - (I was confused before because I must of had the cap at an angle so that I thought there were two 1s!).
As indicated on the can, 1 is positive and negative is self explanatory.
So, I can see a voltage when I charge across those two pins. The other two offer no voltage. So, I guess they are for support.
They wouldn't be shielding would they? I assume that would affect the actual capacitance, so unlikely.
I didn't get time to take a photo, but can do for reference.
Cheers,
Phil
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