On Dec 14, 2015, at 8:12 AM, tony duell <ard at
p850ug1.demon.co.uk> 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