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Heat Shrink Tubing - SUMITUBE SA2 Waterproof Series【5-10 Pieces Per Package】
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SUMITUBE SA2 Waterproof series heat shrink tubing.
● Excellent adhesion to metal, polyolefin and PVC.
● A high shrinkage rate with adhesive filling that provides waterproofing for parts where multiple wires are connected.
● Higher waterproofing and liquid resistance compared to SMTW3F2 serie tubing.
● Made of Sumitomo Electric's fine polymer SUMITUBE SA2 material.
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Specification Table
| 1 pack | 5/10 pcs incl. |
| Model | Color | Pack Capacity | Size Before Shrinking (mm) | Size After Shrinking (mm) | Weight (g/m) | |||
| Internal Diameter (minimum value) | Tube wall thickness* (reference) | Internal Diameter (minimum value) | Tube wall thickness* (reference) | Internal layer thickness (reference value) | ||||
| SMTSA2-5.8-CUTPACK-610 | Black | 610 mm x 10 pcs | 5.80 | 0.45 | 1.26 | 1.20 | 0.56 | 10.00 |
| SMTSA2-7.5-CUTPACK-610 | 7.50 | 0.60 | 1.64 | 1.52 | 0.76 | 15.90 | ||
| SMTSA2-10.9-CUTPACK-610 | 610 mm x 5 pcs | 10.90 | 0.70 | 2.40 | 1.91 | 1.02 | 28.90 | |
| SMTSA2-17.8-CUTPACK-610 | 17.80 | 0.80 | 4.45 | 2.41 | 1.37 | 54.30 | ||
Overview of Specifications
Properties
*1: Not guaranteed values
*2: Tensile strength and second modulus are calculated using cross-sectional areas of the external layer
| Properties | Item | Characteristic Values | Representative Values *1 |
| Mechanical Characteristics | Tensile Strength *2 | 10.4 MPa or more | 31.7 MPa |
| Stretch | 300% or more | 558% | |
| Thermal Shock | 225°C×4 hour, without cracks | Pass | |
| Heat-Resistance | 130°C×7 days, without cracks | Pass | |
| Second modulus *2 | 150 MPa or more | 200.8 MPa | |
| Dynamic Cut-Through | 134 N or more | 597.2 N | |
| Electrical Characteristics | Insulation pressure strength | 19.7 kV/mm or more | 22.7 kV/mm |
| Volume resistivity | 1.0×1012 Ω・cm or more | 1.2×1015 Ω・cm | |
| Chemical Characteristics | Water Absorption | 23°C×24 hours, 0.50% or less | 0.28% |
| Combustion Rate | SAEJ1128, extinguishes within 70 sec. | Pass | |
| Harness After Mounting Waterproofing | Test Method: Sumitomo Electric fine polymer method (leakage current of 0.25 μA or less after the tests below) ・ Heat Aging (125°C×1,008 hours) ・ Heat cycle (125 cycles of 125°C / 30 min, -40°C / 30 min) ・ Liquid Resistance (immersed for 2 hours or more in brake oil, engine coolant, ASTM#3, automatic transmission oil, etc.) . | Pass Pass Pass | |
*2: Tensile strength and second modulus are calculated using cross-sectional areas of the external layer
Basic Characteristics
| Material | External layer: Electron beam crosslinked semi-rigid flame retardant Polyolefin Resin Internal layer: Thermofusion adhesive |
| Shrink Completion Temperature | 115°C or above |
| Shrinkage Rate | Internal Diameter Shrinkage Rate 75% or more Length Change Factor -10% or more |
| Continuous Operable Temperature | -30 to 105°C |
| Rated Voltage | 300 V |
| Part Number |
|---|
| SMTSA2-5.8-CUTPACK-610 |
| SMTSA2-7.5-CUTPACK-610 |
| SMTSA2-10.9-CUTPACK-610 |
| SMTSA2-17.8-CUTPACK-610 |
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Basic Information
| Shrinkage factor | 4:1 | Material | Polyolefin | Color | Black |
|---|---|---|---|---|---|
| Flame Retardant | N/A | Adhesive | Yes | Tube length(mm) | 610 |
| Special Function/Application | Others | Special Functions and Applications (Others) | Liquid-proof | Continuous Operating Temperature Range (Min) Min(°C) | -30 |
| Continuous Operating Temperature Range (Max)Max(°C) | 105 |
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
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