691794-000

MicroFit Small diameter, high shrink ratio, heat-shrinkable tubing MicroFit tubing is micro-sized, heatshrinkable tubing that offers a high shrink ratio (up to 3:1) and fits a range of diameters from .007” to .045”. It is offered in a variety of materials including two medical-grade formulations from our Altera line of medicalgrade, heat-shrinkable tubing products. MicroFit tubing provides electrical insulation, mechanical protection, and strain relief in the smaller, more compact medical devices and commercial electronics products manufactured today. MicroFit tubing’s high shrink ratio eases installation since the tubing’s diameter is large enough to slide easily over the micro-sized substrate. Yet, upon heating, the same tubing shrinks to fit tightly on a wide range of substrate diameters. MicroFit tubing is offered in three materials: RW-175, MT1000, and MT2000. MT1000 and MT2000 meet the requirements of U.S. Pharmacopeia (USP) Class VI. RW-175 and MT1000 tubings utilize a tough semirigid fluoropolymer. They are especially suitable for applications requiring hightemperature performance, outstanding resistance to abrasion and cut-through, and excellent resistance to a variety of fluids. RW-175 meets NASA requirements for low-outgassing materials. MTI000 tubing may be sterilized by radiation, ethylene oxide, steam, and dry heat with no significant change in physical properties. MT2000 tubing is made from a tough, modified polyolefin that offers flexibility, lubricity, and good electrical insulation performance. MT2000’s low shrink temperature enables the tubing to shrink faster than other materials with similar attributes, thereby reducing the risk of damage to temperaturesensitive substrates. MT2000 tubing may be sterilized by gamma radiation or ethylene oxide with no significant change in physical properties. Temperature rating RW-175, MT1000 Full recovery temperature: Continuous operating temperature: Recommended maximum temperature for use as a primary insulator: 175°C –55°C to 175°C 135°C MT2000 Full recovery temperature: Continuous operating temperature: 140°C –40°C to 105°C Specifications* Type RW-175 MT1000, MT2000 Raychem RW-175 MicroFit SCD Altera MicroFit SCD Material Master File Number USP Class VI MAF-444 (MT1000), MAF-727 (MT2000) *When ordering, always specify latest issue. Dimensions (millimeters/inches) W1 W2 Expanded as supplied Fully recovered after heating D Part number MFT-**-No. 1-*** MFT-**-No. 2-*** MFT-**-No. 33-*** MFT-**-No. 65-*** Inside diameter D (min.) Expanded as supplied 0.356 0.014 0.610 0.024 1.143 0.045 0.635 0.025 d (max.) Recovered after heating 0.178 0.007 0.305 0.012 0.432 0.017 0.254 0.010 Wall thickness W1 As supplied (nominal) 0.076 0.003 0.064 0.0025 0.064 0.0025 0.127 0.005 d W2 (max.) Recovered after heating**** 0.127 0.005 0.152 0.006 0.118 0.007 0.330 0.013 **Replace double asterisk with material number: RW-175, MT1000 or MT2000 ***Replace triple asterisk with color-code number. ****Wall thickness will be less if tubing recovery is restricted during shrinkage. Ordering information Colors Size selection Standard packaging Ordering description RW-175, MT1000 MT2000 Standard Clear Black, clear Nonstandard Black White, red, yellow, blue, orange Always order the largest size that will shrink snugly over the component being covered. A variety of special order sizes may be made available upon request. In 4-foot lengths (RW-175); on plastic spools, double-bagged (MT1000, MT2000) Specify product name, material type, size, and color; for example, MFT-MT2000-No.1-0 (0=Black). RW-175 MicroFit specification values Physical Electrical Property Dimensions Tensile strength Unit mm (inches) psi (MPa) Requirement See reverse 5000 (34.5) minimum Ultimate elongation percent 150 minimum Secant modulus (expanded) Heat shock (4 hours at 300°C/572°F) Low temperature flexibility (4 hours at -55°C/-67°F) psi (MPa) 1 x 105 (690) minimum No dripping, flowing or cracking No cracking after wrapping on mandrel Dielectric strength volts/mil (volts/mm) 800 (31,500) minimum Unit mm (inches) psi (MPa) Requirement See reverse Method of test ASTM D 2671 ASTM D 2671 2” per minute ASTM D 2671 2” per minute ASTM D 2671 AMS-DTL-23053, 5/16” mandrel ASTM D 2671 Procedure C 5/16” mandrel ASTM D 2671 Altera MicroFit specification values Physical Electrical Chemical Property Dimensions Tensile strength MT1000 MT2000 Ultimate elongation MT1000 MT2000 Secant modulus (expanded) MT1000 MT2000 Dielectric strength MT1000 MT2000 Dielectric withstand 3000 V, 60 Hz Heavy metals analysis Cadmium Mercury Lead Bismuth Antimony 5000 (34.5) minimum 3000 (20.7) minimum percent 150 minimum 200 minimum psi (MPa) Method of test ASTM D 2671 ASTM D 2671 2” per minute ASTM D 2671 2” per minute ASTM D 2671 1.0 X 105 (690) minimum 5.0 X 104 (344) minimum volts/mil (volts/mm) ASTM D 2671 seconds 800 (31,500) minimum 1000 (39,360) minimum 60 minimum ppm 1 maximum (total of all metals) ASTM D 2671 USP XXII Physiochemical Tests - Plastics (See note below) Note: Sample preparation and extraction is per USP XXII. Metals analysis may be colorimetric as described in USP XXII or by equivalent quantitive analytical method. Users should independently evaluate the suitability of the product for their application. Tyco Electronics Corporation 300 Constitution Drive Menlo Park, CA 94025-1164 USA Tel: (800) 926-2425 (US & Canada) Tel: +1 (650) 361-3860 (All other countries) Faraday Road Dorcan, Swindon, SN3 5HH United Kingdom Tel: +44 1793 528171 3816 Noborito, Tama-ku Kawasaki, Kanagawa 214-8533 Japan Tel: +81 44 900 5102 Asia Pacific Headquarters 26 Ang Mo Kio, Industrial Park 2 Singapore 569507 Tel: +65 4866 151 All information, including illustrations, is believed to be reliable. Users, however, should independently evaluate the suitability of each product for their application. Tyco Electronics Corporation makes no warranties as to the accuracy or completeness of the information, and disclaims any liability regarding its use. Tyco Electronics Corporation’s only obligations are those in the Standard Terms and Conditions of Sale for these products and in no case will Tyco Electronics Corporation be liable for any incidental, indirect, or consequential damages arising from the sale, resale, use, or misuse of the product. Tyco Electronics Corporation’s Specifications are subject to change without notice. In addition, Tyco Electronics Corporation reserves the right to make changes in materials or processing without notification to the Buyer which do not affect compliance with any applicable specification. For more information about this product visit www.tycoelectronics.com © 1997, 2002 Tyco Electronics Corporation Printed in USA 1654059 6/02 Altera, Raychem, and MicroFit are trademarks of Tyco Electronics Corporation.