Special Purpose Tubing SRFR Highly Flexible, Silicone Rubber Tubing Product Facts n Highly flame-retardant Extremely flexible at high and low temperatures n Shrink ratio 1.5:1 minimum except sizes 4/2.9 and 29/20 n 3 Heat-Shrinkable Tubing Applications Highly flexible and resistant to high and low temperatures. Unlike other silicone materials, SRFR displays outstanding physical strength. It resists extreme heat shocks, and exhibits good thermal insulation. SRFR is nonburning and has outstanding ablative properties as well as excellent physical and electrical properties. SRFR is used in medical equipment where its key properties are outstanding flexibility and ability to withstand exposure to sterilization conditions. Other applications include thyristor power cable insulation, heating element and bus bar insulation, fiber optic bundle sheathing, and rocketry support cable protection. Installation Minimum shrink temperature: 135C [275F] Minimum full recovery temperature: 175C [347F] Operating Temperature Range -75C to 200C [-103F to 392F] Specifications/Approvals Raychem Series UL SRFR E85381 VW-1 600V, 200C Available in: RT-1142 RW- 2057 Americas Europe Asia Pacific n n n 3-111 Catalog 1654025 Revised 12-04 www.tycoelectronics.com Dimensions are in millimeters and inches unless otherwise specified. Values in brackets are U.S. equivalents. Dimensions are shown for reference purposes only. Specifications subject to change. USA: 1-800-522-6752 Canada: 1-905-470-4425 Mexico: 01-800-733-8926 C. America: 52-55-5-729-0425 South America: 55-11-3611-1514 Japan: 81-44-900-5102 Singapore: 65-4866-151 UK: 44-1793-528171 Special Purpose Tubing SRFR (Continued) Product Dimensions Inside Diameter Minimum Expanded Maximum Recovered After Heating as Supplied 2.9 [0.114] 1.7 [0.067] 4.0 [0.158] 2.9 [0.114] 7.8 [0.307] 4.6 [0.181] 10.0 [0.394] 6.5 [0.256] 15.0 [0.591] 9.6 [0.378] 21.0 [0.827] 13.0 [0.512] 29.0 [1.142] 20.0 [0.787] 41.0 [1.614] 27.0 [1.063] 51.0 [2.008] 33.0 [1.299] Size 2.9/1.7 4/2.9 7.8/4.6 10/6.5 15/9.6 21/13 29/20 41/27 51/33 Recovered Wall Thickness** After Heating (Nominal) 1.0 0.50 [0.039 0.020] 1.0 0.50 [0.039 0.020] 1.0 0.50 [0.039 0.020] 1.5 0.50 [0.059 0.020] 1.5 0.50 [0.059 0.020] 2.0 0.75 [0.079 0.030] 2.0 0.75 [0.079 0.030] 3.0 1.00 [0.118 0.039] 3.0 1.00 [0.118 0.039] **Wall thickness will be less if tubing recovery is restricted during shrinkage. Ordering Information Color Size selection Standard packaging Ordering description Standard Gray (-8) Always order the largest size that will shrink snugly over the component to be covered. On spools. Specify product name, size and color (for example, SRFR 2.9/1.7-8). 3-112 Catalog 1654025 Revised 12-04 www.tycoelectronics.com Dimensions are in millimeters and inches unless otherwise specified. Values in brackets are U.S. equivalents. Dimensions are shown for reference purposes only. Specifications subject to change. USA: 1-800-522-6752 Canada: 1-905-470-4425 Mexico: 01-800-733-8926 C. America: 52-55-5-729-0425 South America: 55-11-3611-1514 Japan: 81-44-900-5102 Singapore: 65-4866-151 UK: 44-1793-528171