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 | Type | |||
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Black | Adhesive Coating, Flame Retardant, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.380" (35.05mm) | Polyolefin (PO), Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.984" (24.99mm) | 2.640" (67.06mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.380" (35.05mm) | Polyolefin (PO), Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.984" (24.99mm) | 2.640" (67.06mm) | Boot | |
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Black | Adhesive Coating, Fluid Resistant, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.380" (35.05mm) | Elastomer, Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.984" (24.99mm) | 2.640" (67.06mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.380" (35.05mm) | Polyolefin (PO), Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.984" (24.99mm) | 2.640" (67.06mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.380" (35.05mm) | Polyolefin (PO), Flexible | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.984" (24.99mm) | 2.640" (67.06mm) | Boot | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 0.220" (5.59mm) | 0.300" (7.62mm) | 0.618" (15.70mm) | NBCCS, Flexible | - | 0.118" (3.00mm) | 0.300" (7.62mm) | - | 1.248" (31.70mm) | Boot, Bus Connector Insert | |
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Black | - | 0.681" (17.30mm) | 1.280" (32.51mm) | 1.201" (30.51mm) | Polyolefin (PO), Semi-Rigid | 42 | 0.272" (6.91mm) | 1.280" (32.51mm) | 0.980" (24.89mm) | - | Boot - 90° | |
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Black | - | 0.410" (10.41mm) | 0.920" (23.37mm) | 0.890" (22.61mm) | Elastomer, Fluid Resistant | 21 | 0.220" (5.59mm) | 0.920" (23.37mm) | 0.580" (14.73mm) | - | Boot - 90° | |
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TE Connectivity
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port | 0.512" (13.00mm) | 0.760" (19.30mm) | 0.642" (16.31mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 21 | 0.083" (2.11mm) | 0.250" (6.35mm) | 0.858" (21.79mm) | 1.752" (44.50mm) | Boot - 90° | |
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Black | - | 0.410" (10.41mm) | 0.920" (23.37mm) | 0.890" (22.61mm) | Polyolefin (PO), Flexible | 21 | 0.220" (5.59mm) | 0.920" (23.37mm) | 0.230" (5.84mm) | - | Boot - 90° | |
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Black | - | 0.681" (17.30mm) | 1.280" (32.51mm) | 1.201" (30.51mm) | Polyolefin (PO), Flexible | 42 | 0.272" (6.91mm) | 1.280" (32.51mm) | 0.980" (24.89mm) | - | Boot - 90° | |
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Black | - | 0.680" (17.27mm) | 1.280" (32.51mm) | 1.200" (30.48mm) | Elastomer, Fluid Resistant | 42 | 0.900" (22.86mm) | 1.280" (32.51mm) | 0.400" (10.16mm) | - | Boot - 90° | |
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Black | - | 0.680" (17.27mm) | 1.280" (32.51mm) | 1.200" (30.48mm) | Polyolefin (PO), Flexible | 42 | 0.900" (22.86mm) | 1.280" (32.51mm) | 0.400" (10.16mm) | - | Boot - 90° | |
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Black | - | 0.862" (21.89mm) | 1.420" (36.07mm) | 1.630" (41.40mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 53 | 0.339" (8.61mm) | 1.031" (26.19mm) | 0.870" (22.10mm) | 2.902" (73.71mm) | Boot | |
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Black | - | 0.560" (14.22mm) | 1.180" (29.97mm) | 1.050" (26.67mm) | Polyolefin (PO), Semi-Rigid | 32 | 0.810" (20.57mm) | 1.180" (29.97mm) | 0.280" (7.11mm) | - | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port | 1.024" (26.00mm) | 1.346" (34.19mm) | 0.823" (20.90mm) | Polyolefin (PO), Flexible, Irradiated | 53 | 0.122" (3.10mm) | 0.378" (9.60mm) | 2.012" (51.10mm) | 3.319" (84.30mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 0.449" (11.40mm) | 0.882" (22.40mm) | 0.728" (18.49mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 11 | 0.252" (6.40mm) | 0.882" (22.40mm) | 3.449" (87.60mm) | 4.142" (105.21mm) | Boot - 90° | |
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Black | - | 0.560" (14.22mm) | 1.180" (29.97mm) | 1.070" (27.18mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 32 | 0.260" (6.60mm) | 0.590" (14.99mm) | 0.980" (24.89mm) | - | Boot - 90° | |
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Black | - | 0.402" (10.21mm) | 0.980" (24.89mm) | 0.890" (22.61mm) | Polyolefin (PO), Flexible | 21 | 0.209" (5.31mm) | 0.980" (24.89mm) | 0.579" (14.71mm) | - | Boot - 90° | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | - | - | - | Elastomer, Semi-Rigid, Irradiated | 1 | - | - | - | - | Boot | |
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Black | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.880" (22.35mm) | Polyolefin (PO), Flexible | 12 | 0.130" (3.30mm) | 0.260" (6.60mm) | 0.760" (19.30mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.550" (13.97mm) | 1.000" (25.40mm) | 2.800" (71.12mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.200" (5.08mm) | 0.400" (10.16mm) | 1.100" (27.94mm) | 4.000" (101.60mm) | Boot | |
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Black | - | 0.630" (16.00mm) | 0.800" (20.32mm) | - | Polyolefin (PO), Semi-Rigid | 11 | 0.160" (4.06mm) | 0.630" (16.00mm) | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | - | 1.100" (27.94mm) | 2.160" (54.86mm) | - | Polyolefin (PO), Flexible | 53 | 0.880" (22.35mm) | 2.160" (54.86mm) | 1.120" (28.45mm) | 6.750" (171.45mm) | Boot | |
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- | - | 0.961" (24.41mm) | 2.161" (54.89mm) | - | Polyolefin (PO), Semi-Rigid | - | 0.598" (15.19mm) | 2.161" (54.89mm) | - | 7.000" (177.80mm) | Boot - 90° | |
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Black | - | 0.640" (16.26mm) | 0.960" (24.38mm) | - | Polyolefin (PO), Flexible | 22 | 0.280" (7.11mm) | 0.960" (24.38mm) | - | 5.000" (127.00mm) | Boot | |
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Black, Red | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.480" (12.19mm) | Polyolefin (PO), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 3.882" (98.60mm) | 4.772" (121.21mm) | Boot | |
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Black | Adhesive Coating, Fluid Resistant | 1.110" (28.19mm) | 1.110" (28.19mm) | 0.740" (18.80mm) | Elastomer, Semi-Rigid | 21 | 0.209" (5.31mm) | 0.402" (10.21mm) | - | - | Boot - 90° | |
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Black | - | - | - | - | - | 31 | - | - | - | - | Boot | |
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Black | - | 0.413" (10.49mm) | 0.917" (23.29mm) | 0.831" (21.11mm) | Polyolefin (PO), Semi-Rigid | 21 | 0.220" (5.59mm) | 0.917" (23.29mm) | - | 1.500" (38.10mm) | Boot | |
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Black | - | 0.409" (10.39mm) | 0.941" (23.90mm) | 0.984" (24.99mm) | Polyolefin (PO), Semi-Rigid | 21 | 0.220" (5.59mm) | 0.941" (23.90mm) | 0.630" (16.00mm) | 0.984" (24.99mm) | Boot - 90° | |
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Black | - | 0.410" (10.41mm) | 0.940" (23.88mm) | 0.980" (24.89mm) | Elastomer, Fluid Resistant | 21 | 0.220" (5.59mm) | 0.550" (13.97mm) | 0.630" (16.00mm) | 0.980" (24.89mm) | Boot - 90° | |
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Black | - | 0.410" (10.41mm) | 0.920" (23.37mm) | 0.830" (21.08mm) | Elastomer, Fluid Resistant | 21 | 0.220" (5.59mm) | 0.920" (23.37mm) | - | 1.500" (38.10mm) | Boot | |
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Black | - | 0.410" (10.41mm) | 0.920" (23.37mm) | 0.830" (21.08mm) | Elastomer, Fluid Resistant | 21 | 0.220" (5.59mm) | 0.920" (23.37mm) | - | 1.500" (38.10mm) | Boot | |
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Black | - | 0.410" (10.41mm) | 0.940" (23.88mm) | 0.980" (24.89mm) | Polyolefin (PO), Flexible | 21 | 0.220" (5.59mm) | 0.550" (13.97mm) | 0.630" (16.00mm) | 0.980" (24.89mm) | Boot - 90° | |
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Black | Adhesive Coating, Fluid Resistant, Lip | 0.409" (10.39mm) | 0.941" (23.90mm) | 0.830" (21.08mm) | Elastomer, Semi-Rigid | 21 | 0.220" (5.59mm) | 0.941" (23.90mm) | 0.512" (13.00mm) | 1.496" (38.00mm) | Boot | |
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Black | Flame Retardant, Lip | 0.409" (10.39mm) | 0.941" (23.90mm) | 0.350" (8.89mm) | Polyolefin (PO), Semi-Rigid | 21 | 0.220" (5.59mm) | 0.941" (23.90mm) | 0.335" (8.51mm) | 1.020" (25.91mm) | Boot | |
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Black | Fluid Resistant, Lip, Potting (Injection) Port | 0.409" (10.39mm) | 0.941" (23.90mm) | 0.830" (21.08mm) | Elastomer, Semi-Rigid | 21 | 0.220" (5.59mm) | 0.941" (23.90mm) | 0.512" (13.00mm) | 1.496" (38.00mm) | Boot | |
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Black | Adhesive Coating, Fluid Resistant, Lip | 0.409" (10.39mm) | 0.941" (23.90mm) | 0.830" (21.08mm) | Elastomer, Semi-Rigid | 21 | 0.220" (5.59mm) | 0.941" (23.90mm) | 0.512" (13.00mm) | 1.496" (38.00mm) | Boot | |
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Black | Adhesive Coating, Eyelet and Clip, Fluid Resistant, Lip | 0.409" (10.39mm) | 0.941" (23.90mm) | 0.830" (21.08mm) | Elastomer, Semi-Rigid | 21 | 0.220" (5.59mm) | 0.941" (23.90mm) | 0.512" (13.00mm) | 1.496" (38.00mm) | Boot | |
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