Specifications/Approvals
Temperature rating
Underwriters Laboratory approval to style 3264Raychem Specification 1200
Operating temperature range:-55°C to +200°C
Conductor Dielectric Shield
Jacket
•Choice of dielectrics and jackets
•Size and weight savings •Low capacitance
•High velocity of propagation •Low loss
Cheminax
Miniature coaxial cables
Cheminax coaxial cables were designed to solve interconnect
problems in electronic systems such as computers, military equipment and other areas of high density packaging, where cables are required to perform to more exacting specifications than standard RG or UR constructions.Raychem’s leadership in the field of advanced materials technology has made possible the development of dielectric and jacketing materials, resulting in the design of Cheminax miniature coaxial cables offering
substantial savings in size and weight whilst at the same time giving
improvements not only in mechanical
strength, but also reducing capacitance and attenuation.
Cheminax
Dielectrics
Three types are available:
Rayfoam L is an irradiated foamed, low loss polyolefin dielectric suitable for most applications. It co
mbines a low permittivity with an exceptionally low density enabling small size lightweight cables to be designed. If a reduction in size is not required, Rayfoam L enables the u of larger conductors with no overall size increa, reducing the risk of conductor breakage and offering lower signal loss. Low capacitance and high velocity of propagation results from Rayfoam L ’s low permittivity and it is capable of withstanding temperatures in excess of 100°C.
Rayfoam H is also a foamed dielectric
using modified FEP . It is suitable for operation at 200°C. Rayfoam H is available with permittivities as low as 1.4, hence, combined with a low density (64% of PTFE), it also offers
advantages in size, weight, capacitance and velocity.
Rayolin is a modified radiation cross-linked polyethylene. It has a permittivity of 2.3 and a continuous operating temperature of 125°C, offering high temperature dimensional alternatives to standard polyethylene dielectric RG or URM coax cable.
Cheminax
Part numbering system
Impedance (ohms)5050
Cable diameter (mm) 2.1 2.6
Weight (kg/100 m)0.85 1.8
Conductor size7/0.15 mm7/0.17 mm
Dielectric Rayfoam L PTFE
Jacket Thermorad FEP
Attenuation dB/100 m at 400 MHz (max)6669
7530A1317MIL-C-17RG179B
Impedance (ohms)7575
Cable diameter (mm) 2.3 2.5
Weight (kg/100 m)0.84 1.5
Conductor size7/0.1 mm7/0.1 mm
Dielectric Rayfoam L PTFE
Jacket Thermorad FEP
Attenuation dB/100 m at 400 MHz (max)6469
Lower attenuation and capacitance When attenuation and capacitance are the most critical parameters, cables can be designed
with significantly lower attenuation and capacitance with no significant increa in size.
5024A1311MIL-C-17RG316
Impedance (ohms)5050
Cable diameter (mm) 2.7 2.6
Weight (kg/100 m) 1.1 1.8
Capacitance pF/m83.796.5
Attenuation dB/100m (nom)
10 MHz 6.88.4
40 MHz13.916.8
100 MHz22.526.7
7528A1317MIL-C-17RG179B
Impedance (ohms)7575
Cable diameter (mm) 2.6 2.5
Weight (kg/100 m) 1.0 1.5
Capacitance pF/m5667
Attenuation dB/100 m (nom)
10 MHz 6.98.9
40 MHz14.117.8
100 MHz22.828.3
All of the above information, including illustrations, is believed to be reliable. Urs, however, should
independently evaluate the suitability of each product for their application. Raychem makes no warranties as to the accuracy or completeness of the information and disclaims any liability regarding its u.
Raychem’s only obligations are tho in the Standard Terms and Conditions of Sale for this product and in no ca will Raychem be liable for any incidental, indirect or conquential damages arising from the sale, resale, u or misu of the product. Raychem Specifications are subject to change without notice. In addition Raychem rerves the right to make changes in materials or processing, without notification to the Buyer, which do not affect compliance with any applicable specification.
Printed in UK WC 9333310/94
Raychem, Cheminax, Thermorad, Spec 55, Zerohal, Rayfoam and Rayolin are trademarks of Raychem Corporation.
High performance alternatives to standard cables
Raychem alternatives to R.G. cables
Raychem alternatives to U.R. cables
RG/U Raychem Comments UR Raychem Comments
alternative alternative 45020A3311-0Small/light 435020A1311-0Small/light 55018D3311-0Small/light 657518A1311-0Small/light
85012E1339-0Dimensionally similar 675012E1339-0Dimensionally similar 117518A1311-0Small/light 707524A1311-0Small/light 295020A1311-0Small/light 725020A1311-0Small/light 315012E1339-0Dimensionally similar 765020A1311-0Small/light 5018D3311-0Improved electricals 907522A1311-0Small/light 58
5021D1331-0Dimensionally similar 955026A1311-0Small/light
5020A1311-0Small/light 969524A1311-0Dimensionally similar 5018A1311-0Improved electricals 1025012E1339-0Dimensionally similar 7520A1311-0Improved electricals 1067222A1311-0Small/ligh
t 629524A1311-0Small/light 1075012E1339-0Small/light 632524A1311-0Small/light 1085020A1311-0Small/light 875012A3311-0Small/light 1095026A1311-0Small/light 1225020A1311-0Improved electricals 1125012A3311-0Small/light 1247524A1311-0Small/light 1137518A1311-0Small/light 1339524A1311-0Small/light 1165026A1311-0Small/light 1425019D3318-0Small/light 2017522A1311-0Dimensionally similar 5018D3311-0Improved electricals 2027522A1311-0Dimensionally similar 1447518A1311-0Small/light 2037520A1311-0Small/light
1497518A1311-0Small/light 2047518A1311-0Dimensionally similar 1745026A1311-0Small/light 2077524A1311-0Small/light 5024A1311-0Improved electricals 2087524A1311-0Small/light 1785030A1317-0Small/light 2107524A1311-0Small/light 5028A1317-0Improved electricals 3015020A1311-0Small/light 1809530E1014-0Small/light 9527A1318-9Improved electricals 1871885026A1311-0Small/light
Comparisons:
196Weight
60 kg/km 19 kg/km 2109524A1311-0Small/light
Capacitance 67 pF/m 56 pF/m 2135012E1339-0Dimensionally similar Velocity 67%
79%
2145012A3311-0Small/light Attenuation 15.2dB/100 m 14.5dB/100 m 5018D3311-0Improved electricals Impedance
75 ohms
75 ohms
2255012A3311-0Small/light 2355012A3311-0Small/light
2797524A1311-0Dimensionally similar 3025020A1311-0Improved electricals 7524A1311-0Small/light 3035020A1311-0Small/light 3045018A1311-0Small/light 3935012A3311-0Small/light 4005020A3311-0Small/light
5018D3311-0Improved electricals 403
5030A5314-0Small/light
