
APPENDIX
66
TWCP = Twinax Plenum Cable
TWCH = Twinax Blue Flame Retardant Halogen Free Polyolen
Cable
TRCH = Triax Yellow Flame Retardant Halogen Free Polyolen
Cable
Trompeter cables are manufactured to the listed specications
and offer optimum exibility, shielding, and performance. Cables
with stranded center conductors have greater exibility and are
recommended for short runs at low frequency where constant
cable movement might fatigue a single copper-weld center
conductor. Trompeter’s M17/176-00002 and TWAC-78-1F2 are
200°C, Hi-Temp Cables for MIL-STD-1553B data bus applications.
Dielectric and llers made of PTFE (Teon™) and outer jackets
are PFA (Peruoroalkoxy). All dimensions are in inches. All
values without tolerances are nominal unless otherwise stated.
TWCH-78-2 has jacket constructed of ame retardant halogen free
polyolen with temperature range of -30°C to +80°C.
For high temperature cables, see chart on the next page.
Coax Cable Specs
Exploded Detail of Coax, Twinax, & Triax
Cable
JACKET
CENTER
CONDUCTOR
DIELECTRIC
BRAID
CENTER
CONDUCTOR
DIELECTRIC
DIELECTRIC
OUTER BRAID
JACKET
INNER
CONDUCTORS
DIELECTRIC
OUTER SHIELD
FILLER
Coax
Twinax
Triax
Trompeter Cable Specifications
Appendix
Cable Designation TCC-50-2 TCC-75-2 RG62 A/U
Impedance (Ohms) 50±2 75±3 93±5
Nominal outer dia. 0.195 0.242 0.242
PVC outer Green Violet Black
Braid outer dia. 0.150 Max 0.191 Max 0.191 Max
Braid AWG#/Mat'l 36/Tinned Cu 34/Bare Cu 34/Bare Cu
Dielectric outer dia. 0.116 0.146 0.146
Dielectric mat'l Solid PE Foamed PE PE
Conductor outer dia. 0.0355 0.031 0.0253
Conductor strands/Mat'l 19/.0071 Tinned
Cu
7/.010 Tinned
Cu
Solid/CCS
Operating temperature
range
-40°C to 90°C -40°C to 85°C -40°C to 80°C
Minimum bend radius 1.00 1.00
Max. Opr. VAC (RMS) 1.4 KV 800 V 750 V
Capacitance pf/ft (Max) 30.8 17.3 14.5
Cond. Loop Res.
(Ohms/M ft.)
17.6
Atten. dB/100 ft:
1 MHz 0.380 0.335 0.250
10 MHz 1.400 1.070 0.900
50 MHz 3.40 2.40 1.90
100 MHz 4.90 3.40 2.80
200 MHz 7.30 4.85 3.70
400 MHz 9.00 5.20
1 GHz 28.80 12.00 8.50
3 GHz 30.00
Shielded Coverage 93% 93% 94.3% Min