Part # Construction Type  RG Type  Impedance  Shielding  AWG  Stranding  Core Diameter  Jacket Diameter  Applicable Specifications 
9178B COAX  178 B/U  50  BRAID  30  7/38  0.034  0.071  CA Prop 65, MIL - MIL-C-17/RG 178B/U 
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 Diameters (In)
1) Component 1 1 X 1 COAX 
a) Conductor 30 (7/38) AWG SCW 0.012
b) Insulation 0.011" Wall, Nom. PTFE 0.034
(1) Color(s)  
Cond Color Cond Color Cond Color
1 CLEAR   
2) Shield SPC BRAID Shield,94% Coverage, Min. 
3) Jacket 0.010" Wall, Nom.,FEP0.071+/- 0.004
a) Color(s) NATURAL TAN
1) Military MIL-C-17/RG 178B/U 200°C / 750 VRMS
2) CE:EU Low Voltage Directive 2006/95/EC
1) CE: EU Directive 2011/65/EU(RoHS2), EU Directive 2015/863/EU (RoHS3):
 This product complies with European Directive 2011/65/EU (RoHS Directive) of the European Parliament and of the Council of 8 June 2011 and the amending Directive 2015/863/EU of 4 June 2015 . No Exemptions are required for RoHS Compliance on this item. Consult Alpha Wire's web site for RoHS C of C.
2) REACH Regulation (EC 1907/2006):
 This product does not contain Substances of Very High Concern (SVHC) listed on the European Union's REACH candidate list in excess of 0.1% mass of the item. For up-to-date information, please see Alpha's REACH SVHC Declaration.
3) California Proposition 65:Exempt from warning labels based on the Consent Judgment. Please see Alpha's CA Prop 65 Statement for more information.
Physical & Mechanical Properties
1) Temperature Range-55 to 200°C
2) Bend Radius 10X Cable Diameter
3) Pull Tension 2.15 Lbs, Maximum
Electrical Properties(For Engineering purposes only)
1) Voltage Rating 750 VRMS
2) Characteristic Impedance 50 Ω +/- 2
3) Ground Capacitance 29.3 pf/ft @1 kHz, Nominal
4) Velocity of Propagation 70 %
5) Conductor DCR 241 Ω/1000ft @20°C, Nominal
6) OA Shield DCR 14.6 Ω/1000ft @20°C, Nominal
7) Voltage Withstanding 2 kV, Minimum
8) Corona Extinction 1 kV, Minimum
9) Attenuation, Max dB/100ft 29 @ 400 MHz
PackagingFlange x Traverse x Barrel (inches)
a) 1000 FT 6.5 x 4 x 2.5 Max. 3 separate pieces; Min length/piece 100 FT.
b) 500 FT 6.5 x 2 x 1.9 Max. 2 separate pieces; Min length/piece 100 FT.
c) 100 FT 2.75 x 2 x 1.125 Continuous length
d) Bulk(Made-to-order) (Max. 3 pieces per 1000 FT./Min length 100 FT.)
 [Spool dimensions may vary slightly]

Alpha Essentials Coaxial & Micro Coaxial Cable:

For a complete range of 50, 75, 93, and 100 ohm coaxial, twinaxial, and triaxial cables, we offer a wide range of insulation and jacket materials meeting the requirements of military specifications and regulatory agencies such as UL and CSA.  For broadcast quality video transmission, our precision video cables use FEP dielectrics to achieve low capacitance, high velocities of propagation, and tight tolerances for maximum signal integrity.

Try our newest addition to the Alpha Essentials Coaxial Cable line, Micro Coaxial Cable!

Micro Coax is ideal for customers looking for signal transmission options, especially when designs offer limited space for cable routing. Micro Coax is offered in a full range of standard sizes from 50 to 32 AWG using high-strength silver-plated or tinned-copper alloys rated up to +200°C and is in-stock in 100 meter put-ups available for immediate shipping.  Alpha Wire now offers Coaxial cable products ranging from 10 to 50 AWG.

Part #'s 9432 - 9450

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