Appendix
Twinax/Triax: Plenum/Halogen Free Cable Specs
Twinax
Triax
TRCH-50-2
Halogen Free
50±2
Cable Designation
Description
TWCP-78-1
Plenum
78±3
TWCP-78-2
Plenum
78±3
TWCH-78-2
Halogen Free
78±3
TWCP-124-2
Plenum
124±4
TWCP-124-3
Plenum
124±4
TWCP-124-5
Plenum
124±5
Impedance (Ohms)
Nominal outer dia.
Outer braid dia.
0.150
0.242
0.242
0.245
0.205
0.325
0.245
0.102
0.165
0.195
0.183
0.183
0.295
0.210
Core outer dia.
0.154
0.163
Dielectric outer dia.
Inner braid outer dia.
Inner jacket outer dia.
Conductor outer dia.
0.041
0.072
.076
0.080
0.062
0.134
0.043
0.116
0.146
0.175
0.021
0.037
0.037
0.024
0.024
0.048
0.037
Operating temperature
range
+125°C
+125°C
-30°C to +80°C
+125°C
-10°C to +75°C
-10°C to +125°C
-30°C to +80°C
Minimum bend radius
(in/ft.)
1.50
2.50
1.25
2.5
2.0
3.25
1.25
Max. Opr. VDC
2KV
2500
1800
12.0(3)
28.4
2500
6 KV
Max. Opr. VAC (RMS)
Capacitance pf/ft. (Max)
1KV
1KV
11.5
47.0
1800
2 KV
19.6 (3)
18.6(3)
21.2(3)
19.0
11.0(3)
6.5(3)
Cond. loop res.
(Ohms/M ft.)
10.5
Atten. dB/100 ft.:
1 MHz
2.00
3.00
3.50
4.00
4.50
5.30
7.50
9.20
10.60
11.90
16.80
23.70
37.50
44.30
53.00
97%
.60
0.70
1.10
1.40
1.55
1.80
2.20
3.10
3.90
4.50
5.10
7.50
10.50
16.00
18.60
22.50
93%
.50
.85
0.60
0.90
1.10
1.20
1.40
1.60
2.20
2.80
3.20
3.60
5.20
7.20
11.40
13.50
16.20
93%
.30
0.50
0.80
0.90
1.10
1.30
1.50
2.30
2.90
3.40
3.90
5.80
8.80
15.30
18.00
23.00
93%
3 MHz
1.00
1.20
1.40
1.60
2.00
2.80
3.50
4.10
4.60
6.90
9.90
15.40
18.30
21.80
95%
.47
4 MHz
.64
5 MHz
1.10
1.30
1.60
2.30
.69
7 MHz
.79
10 MHz
.94
20 MHz
1.20
1.50
1.70
2.00
3.00
4.50
7.00
8.40
11.00
93%
6.0
30 MHz
40 MHz
50 MHz
3.70
5.30
100 MHz
200 MHz
500 MHz
700 MHz
1 GHz
Shielded coverage
Twist per ft.
93%
8.0
4.0
4.0
4.0
6.0
Notes:
(1) = Center Conductor to Inner Braid
(2) = Conductor to Shield
(3) = Conductor to Conductor
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