> On Dec 14, 2015, at 8:12 AM, tony duell <[email protected]> wrote:
>
>
>> Can anyone give me a clue as to the purpose and pinouts of an Allen
>> Bradley 314B102??!!
>
> First guess, it's not really an IC, it's a resistor array. Either separate
> resistors
> going across the chip or resistors all commoned to the highest numbered
> pin (which may well be +5V).
Yes. The former. You can see it clearly on a photo on Ebay where someone
offers a set of 24 of these; the lighting reveals the thick film resistor
elements running across the package, showing up as humps in the lacquer coating.
> I would secondly guess that '102' means 1k (10*10^2)
That sounds right, and for pullup resistors that would be a plausible value.
It matches the numbering used on surface mount components.
paul
