3-111
Special Purpose Tubing
Catalog 1654025 Dimensions are in millimeters Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-3611-1514
Revised 12-04 and inches unless otherwise reference purposes only. Canada: 1-905-470-4425 Japan: 81-44-900-5102
specified. Values in brackets Specifications subject Mexico: 01-800-733-8926 Singapore: 65-4866-151
www.tycoelectronics.com are U.S. equivalents. to change. C. America: 52-55-5-729-0425 UK: 44-1793-528171
Heat-Shrinkable Tubing
3
SRFR
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 non-
burning 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.
Series UL Raychem
SRFR E85381 VW-1 RT-1142
600V,200˚C RW-2057
Highly Flexible, Silicone
Rubber Tubing
Product Facts
nHighly flame-retardant
nExtremely flexible at high
and low temperatures
nShrink ratio 1.5:1 minimum
except sizes 4/2.9 and 29/20
Specifications/Approvals
Installation
Minimum shrink
temperature: 135°C [275°F]
Minimum full recovery
temperature: 175°C [347°F]
Operating Temperature Range
-75°C to 200°C
[-103°F to 392°F]
Available in: Americas Europe Asia Pacific
nnn
3-112
Special Purpose Tubing
Catalog 1654025 Dimensions are in millimeters Dimensions are shown for USA: 1-800-522-6752 South America: 55-11-3611-1514
Revised 12-04 and inches unless otherwise reference purposes only. Canada: 1-905-470-4425 Japan: 81-44-900-5102
specified. Values in brackets Specifications subject Mexico: 01-800-733-8926 Singapore: 65-4866-151
www.tycoelectronics.com are U.S. equivalents. to change. C. America: 52-55-5-729-0425 UK: 44-1793-528171
SRFR (Continued)
Inside Diameter Recovered Wall
Size Minimum Expanded Maximum Recovered Thickness**
asSupplied After Heating After Heating (Nominal)
2.9/1.7 2.9 [0.114] 1.7 [0.067] 1.0 ± 0.50 [0.039 ± 0.020]
4/2.9 4.0 [0.158] 2.9 [0.114] 1.0 ± 0.50 [0.039 ± 0.020]
7.8/4.6 7.8 [0.307] 4.6 [0.181] 1.0 ± 0.50 [0.039 ± 0.020]
10/6.5 10.0 [0.394] 6.5 [0.256] 1.5 ± 0.50 [0.059 ± 0.020]
15/9.6 15.0 [0.591] 9.6 [0.378] 1.5 ± 0.50 [0.059 ± 0.020]
21/13 21.0 [0.827] 13.0 [0.512] 2.0 ± 0.75 [0.079 ± 0.030]
29/20 29.0 [1.142] 20.0 [0.787] 2.0 ± 0.75 [0.079 ± 0.030]
41/27 41.0 [1.614] 27.0 [1.063] 3.0 ±1.00 [0.118 ± 0.039]
51/33 51.0 [2.008] 33.0 [1.299] 3.0 ±1.00 [0.118 ± 0.039]
**Wall thickness will be less if tubing recovery is restricted during shrinkage.
Color Standard Gray (-8)
Size selection Always order the largest size that will shrink snugly over the component to be covered.
Standard packaging On spools.
Ordering description Specify product name, size and color (for example, SRFR 2.9/1.7-8).
Product Dimensions
Ordering Information
