1055478-1 TE Connectivity, 1055478-1 Datasheet - Page 120

• Manufacturer Part Number: 1055478-1
• Description: Connector Accessories Cable Bender
• Manufacturer: TE Connectivity
• Type: Benderr

Specifications of 1055478-1

• Lead Free Status / RoHS Status: RoHS Not Applicable

7120
Shielded Twisted Pair Cable is used to eliminate inductive
and capacitive coupling. Twisting cancels out inductive
coupling, while the shield eliminates capacitive coupling.
Most applications for this cable are between equipment,
racks and buildings.
Flexible (Braided) Coaxial Cable is by far the most
common type of closed transmission line because of its
flexibility. It is a coaxial cable, meaning that both the signal
and the ground conductors are on the same center axis.
The outer conductor is made from fine braided wire, hence
the name “braided coaxial cable”. This type of cable is
used in practically all applications requiring complete
shielding of the center conductor. The effectiveness of the
shielding depends upon the weave of the braid and the
number of braid layers. Tyco Electronics manufacturers
connectors for cable sizes ranging from less than 1/8 in.
diameter, for low power applications of around 50 watts, to
over 1/2 in. diameter for power of 850 watts at 100 MHz and
voltages up to 5000. In addition to power handling capabili-
ties, cables are available for high frequency applications,
high and low temperature applications, severe environmen-
tal applications and many other specialized uses.
Triaxial Cable is used when higher “shielding” efficiency
characteristics are required in applications similar to those
using shielded twisted pair cable.
Catalog 1308940
Revised 5-03
www.tycoelectronics.com
-1000
-300
-200
-100
-80
-60
-40
-30
-20
-10
9
8
7
6
5
4
Insulation
.01 GH z
Insulation
Twin Conductor and Triaxial Cable
Outer Conductor
Outer Conductor
Shielding Efficiencies
.1 GH z
Single Copper Braid
Dimensions are in inches and
millimeters unless otherwise
specified. Values in brackets
are metric equivalents.
Dielectric
Double Braid
Figure 18
Figure 19
Triax
RF Connectors
Appendix A - Theory and Application
Middle Conductor
Dielectric
1 GH z
Dielectric
Conductors
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
Signal
Conductors
Signal
10 GH z
Often you will hear the term “shielded cable”. This is very
similar to coaxial cable except the spacing between center
conductor and shield is not carefully controlled during man-
ufacture, resulting in non-constant impedance.
Semi-rigid Coaxial Cable uses a solid tubular outer
conductor rather than the braided type, so that all the RF
energy is contained within the cable. One of the draw-
backs of braided cable is that the shielding is not 100%
effective, especially at higher frequencies. This is because
the braided construction can permit small amounts of short
wavelength (high frequency) energy to radiate. Normally
this does not present a problem; however, if a higher
degree of shielding is required, semi-rigid coaxial cable is
recommended. For applications using frequencies higher
than 30 GHz a miniature semi-rigid cable is recommended.
Various connectors are available from Tyco Electronics to
terminate these cables.
Ribbon Coaxial Cable is a relatively recent Tyco
Electronics innovation which combines the advantages of
both ribbon cable and coaxial cable. Tyco Electronics cur-
rently provides both the cable and the insulation displacing
coaxial connector to terminate the cable. Each individual
coaxial cable consists of the signal conductor, dielectric, a
foil shield and a drain wire which is in continuous contact
with the foil. The entire assembly is then covered with an
outer insulating jacket. The unique manufacturing feature of
this cable is the precise placement of the drain wires to per-
mit gang stripping of the outer jacket and foil. The major
advantage of this cable is the speed and ease with which it
can be mass terminated with the AMP insulation displace-
ment technique. They can also be separated into individual
coaxial lines and terminated with standard coaxial connec-
tors as required.
(Continued)
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