75 Ohm Qr500/Qr540 Trunk Coaxial Cable
Hangzhou Spring Electronics Co., Ltd.- Application：Local Communication Cable, Coaxial Cable
- Conductor Material：BC,CCS,CCA,TC,CU,CCAG
- Cover Material：PVC
- Type：Coaxial
- Material Shape：Round Wire
- Conductor Type：Solid
Base Info
- Model NO.：QR540
- Wire Core Material：CCA
- Certification：CE, ISO, RoHS
- Brand：OEM
- Outer Conductor：Al Tube
- Transport Package：1000m
- Specification：2.74mm Conductor
- Origin：China
- HS Code：8544200000
- Production Capacity：3500km,Month
Description
Physical dimensions
component
inches
mm
Inner conductor
0.109
2.77±0.3
diameter over dielectric
0.450
11.43
diameter over outer conductor
0.4740
12.04
Outer conductor thickness
0.012
0.305
Diameter over jacket
0.560
14.22
Jacket wall thickness
0.030
0.76
Mechanical performance:
Minimum bending radius: 6.0 inches/15.2cm
Maximum pulling tension: 300lbs /136kgf
Electrical characteristics:
Capacitance: 15.3±1.0pt/ft.(50±3.0nf/km)
Impedance: 75±2 ohms
Velocity of propagation: 87% nominal
Maximum D.C resistance @68OF:
Structure Return loss: 24dB
Inner conductor: 1.35ohms/1000ft (4.43ohms/km)
Outer conductor: 0.37ohms/1000ft (1.21ohms/km)
Loop: 1.72 ohms/1000ft. (5.64 ohms/km)
Attenuation@ 68OF(20oC):
@Frequency MHZ
dB/100ft. (MAX.)
dB/100 meters(MAX.)
5MHZ
0.16
0.52
55MHZ
0.54
1.77
83MHZ
0.66
2.17
211MHZ
1.09
3.58
250MHZ
1.20
3.94
300MHZ
1.31
4.30
350MHZ
1.43
4.69
400MHZ
1.53
5.02
450MHZ
1.63
5.35
500MHZ
1.73
5.67
550MHZ
1.82
5.97
600MHZ
1.91
6.27
750MHZ
2.16
7.09
865MHZ
2.34
7.68
1000MHZ
2.52
8.27
Specification: