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The HE642C protector is a two
pair module with gold-plated printed
circuit board fingers designed to
interface with a Buchanan PCB1B-10A
ten-position connector. The mating
contacts of the Buchanan connector
are gold-plated for extended
reliability and non-corrosive mating
contact.
The HE642C protector
may be utilized as two independent
signal pairs or four independent
signal lines. Either way, the HE642C
protector is of hybrid design and
uses the very latest in hybrid
suppression technology. An
additional protection feature
incorporates the use of a positive
temperature coefficient component
(PTC). This component performs as a
“resettable fuse” on each line. The
PTC will open upon a severe overload
and reset as soon as the transient
condition has passed.
The internal design of the HE642C
allows the data signals to pass
through the protector in a series
fashion as long as the protector is
engaged with the Buchanan connector.
The HE642C requires four input and
output pins. Pins 1 and 10 are
ground and are electrically
connected internally. The data
circuits are interrupted when the
HE642C is disengaged from the
connector. Input and output
connections are made easily via the
screw-down terminals in the Buchanan
connector.
When installing the
HE642C protector with the Buchanan
connector, do not daisy chain the
grounds. Each Buchanan connector
must be grounded individually. Keep
the ground leads as short as
possible to insure the optimum
protection.
NOTE:
Buchanan connector is sold
separately.
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