Terminal Junction Systems
MIL-PRF-81714 Series I
MIL-PDF81714 Series I
Junction Modules
QPL approved modules (MIL-
PRF-81714 and MIL-C-39029/1
contacts) are available in four
standard sizes accommodating
12-26 AWG wire in both feed-
back and feed-thru types with a
full selection of bussing
arrangements. The complete
MIL-PRF-81714 Series I terminal
junction system includes the
following elements.
§ Feedback Modules
§ Feedthru Modules
§ Ground Modules
§ Electronic Modules
§ Single In-Line Splices
§ Dual In-Line Splices
§ Electronic Splices
§ Mounting Tracks
§ Mil-C-39029/1 Contacts
Module Design and
Construction
The patented PCD terminal
junction module design assures
maximum efficiency and
reliability. Key features and
benefits include:
§ Integral Socket/Bus Bar
The Patented integral socket/bus
bar assembly provides superior
electrical characteristics and
assures mechanical integrity over
a long product life. This unique
design totally eliminates all solder
of welded joints, which could
cause variations in electrical
and/or mechanical performance.
§ Integral Contacts
Integral female contacts and bus
bar have no mechanical functions
– only the electrical conductivity
function -
High Density Modules
A recently introduced series of
high density modules which
conform to all dimensional and
performance requirements of
MIL-PRF-81714/17 is now
available from PCD and indicated
on page 45.
The high density modules accept
21 size 22 contacts in a compact
3 X 7 configuration, with a wide
variety of bus arrangements. The
construction features one-piece
screw machine contacts with a
split socket design for a
maximum performance. Contacts
are securely packaged within a
polyetherimide housing.
Switch Connectors
MIL-PRF-81714 and related
technology have been utilized to
develop a broad and growing
family of specialty connectors and
pluggable switches, remote
control circuit breakers (RCCB),
and other applications where
reliable plug-in or removal
capability is required for a system
component. Wire termination
capabilities include crimp
contacts and solder tabs. Product
includes both standard and
engineered connectors. Contact
PCD for details.
Class D Module System
PCD was the first supplier to
qualify module and track systems
to the high performance MIL-
PRF-81714 Series I Class D
requirements. Class D systems
combine the maximum high
temperature and high fluid
resistance performance
parameters previously divided
among three module classes – A,
B and C – and also meet random
vibration standards. Class D
modules replace obsolete
Classes A, B and C.
and are a highly conductive alloy
for optimum electrical performance.
Separate and independent BeCu
pressure springs designated for
maximum mechanical
performance, provide consistent
contact pressure.
§ Split Socket Design
Split socket design, conforming to
the mating pin diameter, provides
peripheral surface wipe and
contact, while utilizing the
maximum mating surfaces of pin
and socket.