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 | - | 2.270" (57.66mm) | 3.220" (81.79mm) | 3.750" (95.25mm) | Elastomer, Fluid Resistant | 96 | 1.000" (25.40mm) | 3.220" (81.79mm) | 1.880" (47.75mm) | 7.000" (177.80mm) | - | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.850" (46.99mm) | 2.469" (62.71mm) | 0.921" (23.39mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 85 | 0.690" (17.53mm) | 2.469" (62.71mm) | 6.031" (153.19mm) | 8.000" (203.20mm) | - | Boot | |
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Black | - | 0.390" (9.91mm) | 0.940" (23.88mm) | 0.460" (11.68mm) | Polyolefin (PO), Flexible | 11 | 0.260" (6.60mm) | 0.680" (17.27mm) | 2.230" (56.64mm) | 3.000" (76.20mm) | - | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.850" (46.99mm) | 2.469" (62.71mm) | 0.921" (23.39mm) | Polyolefin (PO), Flexible, Irradiated | 85 | 0.690" (17.53mm) | 2.469" (62.71mm) | 6.031" (153.19mm) | 8.000" (203.20mm) | - | Boot | |
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Black | - | 1.752" (44.50mm) | 2.598" (65.99mm) | 2.598" (65.99mm) | Polyolefin (PO), Flexible | 85 | 0.800" (20.32mm) | 2.598" (65.99mm) | 2.800" (71.12mm) | - | - | Boot - 90° | |
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Black | - | 1.110" (28.19mm) | 1.110" (28.19mm) | - | Polyolefin (PO), Semi-Flexible, Halogen Free | 21 | 0.210" (5.33mm) | 0.400" (10.16mm) | - | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | - | 1.740" (44.20mm) | 2.661" (67.59mm) | 2.598" (65.99mm) | Polyolefin (PO), Semi-Rigid | 85 | 0.800" (20.32mm) | 2.661" (67.59mm) | 2.800" (71.12mm) | - | - | Boot - 90° | |
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Black | - | 0.720" (18.29mm) | 1.402" (35.61mm) | 0.752" (19.10mm) | Polyolefin (PO), Semi-Rigid | 24 | 0.339" (8.61mm) | 0.598" (15.19mm) | 1.618" (41.10mm) | 2.500" (63.50mm) | - | Boot, Transition - Side Breakout, 30° | |
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Black | - | 0.700" (17.78mm) | 1.220" (30.99mm) | 1.220" (30.99mm) | Polyolefin (PO), Flexible | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.980" (24.89mm) | - | - | Boot - 90° | |
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Black | - | 0.870" (22.10mm) | 1.400" (35.56mm) | 0.480" (12.19mm) | Polyolefin (PO), Flexible | 42 | 0.400" (10.16mm) | 1.130" (28.70mm) | 2.870" (72.90mm) | 4.000" (101.60mm) | - | Boot | |
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Black | - | 0.870" (22.10mm) | 1.400" (35.56mm) | 1.870" (47.50mm) | Polyolefin (PO), Flexible | 42 | 0.400" (10.16mm) | 1.130" (28.70mm) | 0.480" (12.19mm) | 3.000" (76.20mm) | - | Boot | |
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Black | - | 0.800" (20.32mm) | 0.800" (20.32mm) | - | Polyolefin (PO), Semi-Rigid | 11 | 0.160" (4.06mm) | 0.310" (7.87mm) | - | - | - | Boot, Rectangular - Right Angle, 90° | |
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 1.161" (29.49mm) | 1.470" (37.34mm) | 0.961" (24.41mm) | Elastomer, Semi-Rigid, Irradiated | 53 | 0.409" (10.39mm) | 1.470" (37.34mm) | 5.661" (143.79mm) | 7.291" (185.19mm) | - | Boot - 90° | |
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Black | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.161" (29.49mm) | 1.470" (37.34mm) | 0.961" (24.41mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 53 | 0.409" (10.39mm) | 1.470" (37.34mm) | 5.661" (143.79mm) | 7.291" (185.19mm) | - | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 1.161" (29.49mm) | 1.470" (37.34mm) | 0.961" (24.41mm) | Polyolefin (PO), Flexible, Irradiated | 53 | 0.409" (10.39mm) | 1.470" (37.34mm) | 2.618" (66.50mm) | 4.252" (108.00mm) | - | Boot - 90° | |
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Black | - | 2.311" (58.70mm) | 2.311" (58.70mm) | 0.791" (20.10mm) | Elastomer, Semi-Rigid | 42 | 0.311" (7.90mm) | 0.681" (17.30mm) | - | - | - | Boot - 90° | |
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Black | - | 0.201" (5.11mm) | 2.008" (51.00mm) | - | Polyolefin (PO), Irradiated | - | - | - | - | 0.750" (19.05mm) | - | Shrink Hoop, Grommet | |
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Black | - | 0.791" (20.10mm) | 2.370" (60.20mm) | 4.079" (103.61mm) | Polyolefin (PO), Flexible | 23 | 0.791" (20.10mm) | 1.421" (36.09mm) | 4.079" (103.61mm) | 8.161" (207.29mm) | - | Boot, Transition - Breakout, 3:1 | |
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- | - | 0.307" (7.80mm) | 0.677" (17.20mm) | 1.000" (25.40mm) | Polyolefin (PO), Flexible | - | 0.307" (7.80mm) | 0.437" (11.10mm) | 2.500" (63.50mm) | - | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | Adhesive Coating, Fluid Resistant | 0.472" (11.99mm) | - | - | Elastomer, Semi-Rigid | 13 | 0.157" (3.99mm) | 0.394" (10.01mm) | 0.602" (15.29mm) | 2.440" (61.98mm) | - | Feed Through | |
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Black | - | 0.520" (13.21mm) | 1.060" (26.92mm) | 1.690" (42.93mm) | Polyolefin (PO), Flexible | 23 | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.980" (50.29mm) | 3.669" (93.19mm) | - | Boot, Transition - Breakout, 3:1 | |
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 0.787" (19.99mm) | - | - | Elastomer, Semi-Rigid | 23 | 0.270" (6.86mm) | 0.710" (18.03mm) | 0.768" (19.51mm) | 2.835" (72.01mm) | - | Feed Through | |
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Black | - | 0.280" (7.11mm) | 0.650" (16.51mm) | - | Elastomer, Semi-Rigid, Irradiated | 23 | 0.276" (7.01mm) | 0.709" (18.01mm) | 0.768" (19.51mm) | - | 2.832" (71.93mm) | Feed Through | |
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- | - | 0.350" (8.89mm) | 0.697" (17.70mm) | 0.929" (23.60mm) | Polyolefin (PO), Flexible | 12 | 0.201" (5.11mm) | 0.398" (10.11mm) | 0.929" (23.60mm) | 1.870" (47.50mm) | - | Boot, Transition - Side Breakout, 90° | |
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Black | Adhesive Coating, Fluid Resistant | 0.858" (21.79mm) | 1.421" (36.09mm) | 1.382" (35.10mm) | Elastomer, Semi-Rigid | 52 | 0.331" (8.41mm) | 1.421" (36.09mm) | 1.181" (30.00mm) | - | - | Boot - 90° | |
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Black | - | 0.472" (11.99mm) | - | - | Polyolefin (PO), Semi-Rigid | 13 | 0.157" (3.99mm) | 0.394" (10.01mm) | 0.602" (15.29mm) | 2.440" (61.98mm) | - | Feed Through | |
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Black | - | 0.472" (11.99mm) | - | - | Elastomer, Semi-Rigid | 13 | 0.157" (3.99mm) | 0.394" (10.01mm) | 0.602" (15.29mm) | 2.440" (61.98mm) | - | Feed Through | |
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Black | Abrasion Resistant, Adhesive Coating, Corrosion Resistant, Flame Retardant, Weather Resistant | 0.984" (24.99mm) | 1.750" (44.45mm) | 2.300" (58.42mm) | Polyolefin (PO) | - | 0.260" (6.60mm) | 0.790" (20.07mm) | 1.181" (30.00mm) | - | - | Boot, Transition - Breakout, 4:1 | |
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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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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 | - | 0.510" (12.95mm) | 1.340" (34.04mm) | 1.250" (31.75mm) | Elastomer, Fluid Resistant | 13 | 0.790" (20.07mm) | 1.340" (34.04mm) | - | 5.000" (127.00mm) | - | Boot - 90° | |
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Black | - | 0.510" (12.95mm) | 1.340" (34.04mm) | 1.250" (31.75mm) | Polyolefin (PO), Flexible | 13 | 0.790" (20.07mm) | 1.340" (34.04mm) | - | 5.000" (127.00mm) | - | Boot - 90° | |
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Black | - | 1.070" (27.18mm) | 1.070" (27.18mm) | 3.880" (98.55mm) | EPB, Flexible | 21 | 0.300" (7.62mm) | 0.820" (20.83mm) | 0.480" (12.19mm) | 4.770" (121.16mm) | - | Boot | |
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Black | - | 0.410" (10.41mm) | 0.920" (23.37mm) | 0.830" (21.08mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 21 | 0.220" (5.59mm) | 0.490" (12.45mm) | - | 1.500" (38.10mm) | - | Boot | |
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- | - | 0.488" (12.40mm) | 1.059" (26.90mm) | 1.661" (42.19mm) | Polyolefin (PO), Semi-Rigid | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 1.681" (42.70mm) | 3.539" (89.89mm) | - | Boot, Transition - Side Breakout, 45° | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Lip, Mechanical Resistant, Strain Resistant | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.591" (15.01mm) | Polyolefin (PO), Semi-Flexible, Halogen Free, Irradiated | 21 | 0.291" (7.39mm) | 0.630" (16.00mm) | 3.882" (98.60mm) | 4.772" (121.21mm) | - | Boot | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.449" (11.40mm) | 0.882" (22.40mm) | 0.728" (18.49mm) | Elastomer, Semi-Rigid, Irradiated | 11 | 0.252" (6.40mm) | 0.882" (22.40mm) | 2.059" (52.30mm) | 2.752" (69.90mm) | - | Boot - 90° | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.340" (34.04mm) | 1.720" (43.69mm) | 0.780" (19.81mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 6.421" (163.09mm) | 8.000" (203.20mm) | - | Boot | |
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Black | - | 0.880" (22.35mm) | 1.740" (44.20mm) | 0.500" (12.70mm) | EPB, Flexible | 42 | 0.550" (13.97mm) | 1.440" (36.58mm) | 1.000" (25.40mm) | - | - | Boot | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 1.340" (34.04mm) | 1.720" (43.69mm) | 0.598" (15.19mm) | Elastomer, Semi-Rigid, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 0.638" (16.21mm) | 2.217" (56.31mm) | - | Boot | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 1.340" (34.04mm) | 1.720" (43.69mm) | 0.598" (15.19mm) | Elastomer, Semi-Rigid, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 0.638" (16.21mm) | 2.217" (56.31mm) | - | Boot | |
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Black, Red | Adhesive Coating, Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.340" (34.04mm) | 1.720" (43.69mm) | 0.598" (15.19mm) | Polyolefin (PO), Flexible, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 6.421" (163.09mm) | 8.000" (203.20mm) | - | Boot | |
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Black, Red | Adhesive Coating, Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.340" (34.04mm) | 1.720" (43.69mm) | 0.598" (15.19mm) | Polyolefin (PO), Flexible, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 6.421" (163.09mm) | 8.000" (203.20mm) | - | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.622" (41.20mm) | 1.970" (50.04mm) | 0.819" (20.80mm) | Polyolefin (PO), Flexible, Irradiated | 74 | 0.559" (14.20mm) | 1.970" (50.04mm) | 6.209" (157.71mm) | 8.000" (203.20mm) | - | Boot | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.622" (41.20mm) | 1.970" (50.04mm) | 0.819" (20.80mm) | Elastomer, Semi-Rigid, Irradiated | 74 | 0.559" (14.20mm) | 1.970" (50.04mm) | 6.209" (157.71mm) | 8.000" (203.20mm) | - | Boot | |
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Black | - | 1.110" (28.19mm) | 1.531" (38.89mm) | 0.961" (24.41mm) | EPB | 53 | 0.430" (10.92mm) | 1.240" (31.50mm) | 5.661" (143.79mm) | 7.291" (185.19mm) | - | Boot - 90° | |
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Black | - | 1.110" (28.19mm) | 1.530" (38.86mm) | 0.960" (24.38mm) | Polyolefin (PO), Flexible | 53 | 0.430" (10.92mm) | 1.240" (31.50mm) | 5.660" (143.76mm) | 7.290" (185.17mm) | - | Boot - 90° |
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