What are Heat Shrink Boots, Caps ?
Heat Shrink Boots, Caps are protective coverings designed to insulate and secure electrical connections. They are widely used in applications such as board-to-board and cable interconnects, as well as in production electronics assembly. Important specifications for selection include Color, which aids in identification; Material, which affects durability and heat resistance; and Large Diameter Recovered, which ensures a proper fit over connectors. Procurement teams should validate lifecycle status and consider alternate-source options to mitigate sourcing risks.
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| Part & Mfr | Color | Features | Large Diameter Recovered | Large Diameter Supplied | Large Recovered Length | Material | Shell Size | Small Diameter Recovered | Small Diameter Supplied | Small Recovered Length | Total Length Recovered | Total Length Supplied | Type | |||
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Black | Adhesive Coating, Flame Retardant, Lip | 1.382" (35.10mm) | 2.362" (59.99mm) | 2.830" (71.88mm) | Polyolefin (PO), Flexible | 74 | 0.618" (15.70mm) | 2.362" (59.99mm) | 1.970" (50.04mm) | 5.120" (130.05mm) | - | Boot | |
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Black | Adhesive Coating | 0.539" (13.69mm) | 1.060" (26.92mm) | 2.752" (69.90mm) | Polyolefin (PO), Flexible | 34 | 0.240" (6.10mm) | 0.520" (13.21mm) | 2.110" (53.59mm) | 5.701" (144.81mm) | - | Boot, Transition - Side Breakout, 45° | |
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Black | - | 2.310" (58.67mm) | 1.350" (34.29mm) | 1.120" (28.45mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 42 | 0.340" (8.64mm) | 1.350" (34.29mm) | - | 2.100" (53.34mm) | - | Boot, Rectangular | |
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- | - | 0.315" (8.00mm) | 0.787" (19.99mm) | 0.984" (24.99mm) | Elastomer | - | 0.157" (3.99mm) | 0.354" (8.99mm) | 1.260" (32.00mm) | - | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.260" (6.60mm) | 0.780" (19.81mm) | 1.600" (40.64mm) | EPB, Flexible | 1 | 0.260" (6.60mm) | 0.520" (13.21mm) | 1.600" (40.64mm) | - | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | Adhesive Coating, Lip | 1.110" (28.19mm) | 1.690" (42.93mm) | 1.610" (40.89mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 63 | 0.390" (9.91mm) | 1.690" (42.93mm) | 0.830" (21.08mm) | 3.110" (78.99mm) | - | Boot | |
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Black | - | 0.260" (6.60mm) | 0.780" (19.81mm) | 1.600" (40.64mm) | EPB, Flexible | 1 | 0.260" (6.60mm) | 0.520" (13.21mm) | 1.600" (40.64mm) | - | - | Boot, Transition - Breakout, 2:1 (Y) | |
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- | - | 0.260" (6.60mm) | 0.780" (19.81mm) | 1.000" (25.40mm) | EPB, Flexible | - | 0.260" (6.60mm) | 0.520" (13.21mm) | 1.000" (25.40mm) | - | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.260" (6.60mm) | 0.520" (13.21mm) | 0.820" (20.83mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 11 | 0.140" (3.56mm) | 0.260" (6.60mm) | 1.000" (25.40mm) | 1.820" (46.23mm) | - | Boot, Transition - Breakout, 3:1 | |
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Black | - | 0.410" (10.41mm) | 0.540" (13.72mm) | - | Fluoroelastomer (FKM), Flexible | 21 | 0.220" (5.59mm) | 0.460" (11.68mm) | 0.230" (5.84mm) | - | - | Boot - 90° | |
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Black | Adhesive Coating | 0.539" (13.69mm) | 1.060" (26.92mm) | 2.752" (69.90mm) | Polyolefin (PO), Semi-Rigid | 34 | 0.240" (6.10mm) | 0.520" (13.21mm) | 2.110" (53.59mm) | 5.701" (144.81mm) | - | Boot, Transition - Side Breakout, 45° | |
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Black | Adhesive Coating | 0.539" (13.69mm) | 1.060" (26.92mm) | 2.752" (69.90mm) | Polyolefin (PO), Flexible | 34 | 0.240" (6.10mm) | 0.520" (13.21mm) | 2.110" (53.59mm) | 5.701" (144.81mm) | - | Boot, Transition - Side Breakout, 45° | |
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Black | Adhesive Coating | 0.539" (13.69mm) | 1.060" (26.92mm) | 2.752" (69.90mm) | Polyolefin (PO), Flexible | 34 | 0.240" (6.10mm) | 0.520" (13.21mm) | 2.110" (53.59mm) | 5.701" (144.81mm) | - | Boot, Transition - Side Breakout, 45° | |
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Black | - | 0.710" (18.03mm) | - | - | Polyolefin (PO), Semi-Rigid | 45 | 0.709" (18.01mm) | 1.654" (42.01mm) | 1.268" (32.21mm) | - | 4.000" (101.60mm) | Feed Through | |
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Black | Adhesive Coating, Fluid Resistant | 0.539" (13.69mm) | 1.060" (26.92mm) | 2.752" (69.90mm) | Elastomer, Semi-Rigid | 34 | 0.240" (6.10mm) | 0.520" (13.21mm) | 2.110" (53.59mm) | 5.701" (144.81mm) | - | Boot, Transition - Side Breakout, 45° | |
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Black | - | 0.350" (8.89mm) | 0.700" (17.78mm) | 0.750" (19.05mm) | Elastomer, Fluid Resistant | 12 | 0.350" (8.89mm), 0.200" (5.08mm) | 0.900" (22.86mm), 0.400" (10.16mm) | 0.780" (19.81mm) | 1.870" (47.50mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
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- | - | 0.472" (11.99mm) | - | - | Elastomer | - | 0.157" (3.99mm) | 0.394" (10.01mm) | 0.602" (15.29mm) | 2.441" (62.00mm) | - | Feed Through | |
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- | - | 0.512" (13.00mm) | 1.161" (29.49mm) | - | Polyolefin (PO), Semi-Rigid | - | 0.319" (8.10mm) | 1.161" (29.49mm) | - | 5.000" (127.00mm) | - | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant | 0.531" (13.49mm) | 1.060" (26.92mm) | 2.370" (60.20mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 34 | 0.531" (13.49mm) | 1.060" (26.92mm) | 2.362" (59.99mm) | 4.728" (120.09mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant | 0.531" (13.49mm) | 1.060" (26.92mm) | 2.370" (60.20mm) | Polyolefin (PO), Flexible, Irradiated | 34 | 0.531" (13.49mm) | 1.060" (26.92mm) | 2.362" (59.99mm) | 4.728" (120.09mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
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- | - | - | - | - | - | 34 | - | - | - | - | - | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.520" (13.21mm) | 1.060" (26.92mm) | 1.690" (42.93mm) | Polyolefin (PO), Flexible | 23 | 0.270" (6.86mm) | 0.520" (13.21mm) | 1.980" (50.29mm) | 3.670" (93.22mm) | - | Boot, Transition - Breakout, 3:1 | |
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Black | - | 1.770" (44.96mm) | - | - | Polyolefin (PO), Semi-Rigid | 45 | 0.710" (18.03mm) | 1.654" (42.01mm) | 1.268" (32.21mm) | 4.010" (101.85mm) | - | Feed Through | |
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Black | - | 0.880" (22.35mm) | 1.740" (44.20mm) | - | EPB, Flexible | 42 | 0.690" (17.53mm) | 1.440" (36.58mm) | 1.000" (25.40mm) | 6.250" (158.75mm) | - | Boot | |
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- | - | 0.449" (11.40mm) | 1.000" (25.40mm) | 1.618" (41.10mm) | Polyolefin (PO), Flexible | - | 0.295" (7.49mm) | 0.598" (15.19mm) | 2.480" (62.99mm) | - | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Strain Resistant | 0.531" (13.49mm) | 1.060" (26.92mm) | 2.370" (60.20mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 34 | 0.531" (13.49mm) | 1.060" (26.92mm) | 2.362" (59.99mm) | 4.728" (120.09mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Strain Resistant | 0.531" (13.49mm) | 1.060" (26.92mm) | 2.370" (60.20mm) | Polyolefin (PO), Flexible, Irradiated | 34 | 0.531" (13.49mm) | 1.060" (26.92mm) | 2.362" (59.99mm) | 4.728" (120.09mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.710" (18.03mm) | 1.591" (40.40mm) | - | Elastomer, Semi-Rigid, Irradiated | 45 | 0.709" (18.01mm) | 1.654" (42.01mm) | 1.268" (32.21mm) | - | 4.000" (101.60mm) | Feed Through | |
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Black | - | 0.710" (18.03mm) | 1.591" (40.40mm) | - | Polyolefin (PO), Flexible | 45 | 0.709" (18.01mm) | 1.654" (42.01mm) | 1.268" (32.21mm) | - | 4.000" (101.60mm) | Feed Through | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Lip, Mechanical Resistant, Strain Resistant | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.610" (15.49mm) | Polyolefin (PO), Semi-Flexible, Halogen Free, Irradiated | 32 | 0.331" (8.41mm) | 0.720" (18.29mm) | 4.441" (112.80mm) | 5.461" (138.71mm) | - | Boot | |
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Black | Adhesive Coating, Fluid Resistant | 1.390" (35.31mm) | 2.039" (51.79mm) | 2.551" (64.80mm) | Elastomer, Semi-Rigid | 74 | 0.630" (16.00mm) | 2.039" (51.79mm) | 2.000" (50.80mm) | 5.130" (130.30mm) | - | Boot | |
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Black | - | 2.280" (57.91mm) | 2.280" (57.91mm) | 1.040" (26.42mm) | Elastomer, Semi-Rigid | 52 | 0.358" (9.09mm) | 0.752" (19.10mm) | - | - | - | Boot - 90° | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.819" (20.80mm) | Elastomer, Semi-Rigid, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 4.500" (114.30mm) | 5.760" (146.30mm) | - | Boot - 90° | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.819" (20.80mm) | Elastomer, Semi-Rigid, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 2.240" (56.90mm) | 3.500" (88.90mm) | - | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.819" (20.80mm) | Polyolefin (PO), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 2.240" (56.90mm) | 3.500" (88.90mm) | - | Boot - 90° | |
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Black | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.819" (20.80mm) | Polyolefin (PO), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 4.500" (114.30mm) | 5.760" (146.30mm) | - | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.819" (20.80mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 2.240" (56.90mm) | 3.500" (88.90mm) | - | Boot - 90° | |
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Black | - | 1.110" (28.19mm) | 1.690" (42.93mm) | 1.770" (44.96mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 63 | 0.390" (9.91mm) | 0.980" (24.89mm) | 1.180" (29.97mm) | 2.170" (55.12mm) | - | Boot - 90° | |
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Black | - | 1.100" (27.94mm) | 0.430" (10.92mm) | 0.450" (11.43mm) | Elastomer, Fluid Resistant | 63 | 0.390" (9.91mm) | 0.430" (10.92mm) | 0.350" (8.89mm) | - | - | Boot - 45° | |
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Black | - | 0.700" (17.78mm) | 1.220" (30.99mm) | 1.220" (30.99mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 42 | 0.280" (7.11mm) | 0.710" (18.03mm) | 0.980" (24.89mm) | - | - | Boot - 90° | |
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Black | - | 0.470" (11.94mm) | 0.900" (22.86mm) | 2.000" (50.80mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.110" (2.79mm) | 0.280" (7.11mm) | - | 2.750" (69.85mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 0.470" (11.94mm) | 0.900" (22.86mm) | 2.000" (50.80mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.110" (2.79mm) | 0.280" (7.11mm) | - | 2.750" (69.85mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | Chemical Resistant, Eyelet, Lip | 0.409" (10.39mm) | 0.941" (23.90mm) | 0.830" (21.08mm) | Fluoroelastomer (FKM), Flexible | 21 | 0.220" (5.59mm) | 0.472" (11.99mm) | 0.512" (13.00mm) | 1.496" (38.00mm) | - | Boot | |
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Black | - | 0.880" (22.35mm) | 1.180" (29.97mm) | - | Elastomer, Fluid Resistant | 52 | 0.330" (8.38mm) | 0.710" (18.03mm) | 0.500" (12.70mm) | - | - | Boot - 90° | |
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- | Adhesive Coating | 0.268" (6.81mm) | 1.040" (26.42mm) | 1.600" (40.64mm) | EPB, Flexible | 1 | 0.268" (6.81mm) | 0.760" (19.30mm) | 1.600" (40.64mm) | - | - | Boot, Transition - Breakout, 2:1 (Y) |
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