Coax Cable

21/11/11 V1.1

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Construction

Item

Material

Diameter (Inch / mm)

Inner conductor

Silver plated copper clad steel

7 / 0.004 ±0.001

7 / 0.1 ±0.02

Dielectric

PTFE

0.033 ±0.002

0.84 ±0.05

Shield

95% Silver plated copper braid

0.051 ±0.003

1.3 ±0.08

Jacket

FEP

0.071 ±0.004

1.8 ±0.1

Electrical Characteristics

Capacitance (pF/m)

: 96.5

Impedance (

Ω)

: 50 ±2

Velocity of propagation (%)

: 69.5

Conductor DCR (Ohm / km)

: 800.5

Outer shield DCR (Ohm / km)

: 47.9

Maximum operating frequency (MHz)

: 3,000

Maximum operating voltage (RMS)

: 1,000

Corona extinction voltage (Vrms)

: 1,000

Voltage withstand (Vrms)

: 2,000

Spark test (Vrms)

: 2,000

Operating temperature range (°C)

: -55 to 200

Attenuation (at 20°C)

Frequency

(MHz)

Maximum Attenuation

(dB / 100 ft)

Maximum Attenuation

(dB / 100 m)

10

5.6

18.4

50

10.5

34.4

100

14

45.9

200

19

62.3

400

28

91.9

700

37

121.4

900

42.5

139.4

1,000

46

150.9

3,000

81

265.7

Description

Part Number

Cable, Coax, RG178,100 M

RG178

Part Number Table