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 | - | 0.560" (14.22mm) | 0.710" (18.03mm) | 0.790" (20.07mm) | Elastomer, Fluid Resistant | 32 | 0.240" (6.10mm) | 0.710" (18.03mm) | 0.670" (17.02mm) | - | Boot | |
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Black | - | 0.728" (18.49mm) | 1.220" (30.99mm) | 0.480" (12.19mm) | Polyolefin (PO), Flexible | - | 0.480" (12.19mm) | 0.961" (24.41mm) | 1.980" (50.29mm) | 3.000" (76.20mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.343" (34.11mm) | 1.717" (43.61mm) | 1.031" (26.19mm) | Polyolefin (PO), Flexible, Irradiated | 63 | 0.142" (3.61mm) | 0.449" (11.40mm) | 2.272" (57.71mm) | 3.921" (99.59mm) | Boot | |
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Black | Adhesive Coating, 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 | 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, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.512" (13.00mm) | 0.759" (19.28mm) | 0.618" (15.70mm) | Elastomer, Semi-Rigid, Irradiated | 21 | 0.083" (2.11mm) | 0.248" (6.30mm) | - | 2.370" (60.20mm) | Boot | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.512" (13.00mm) | 0.750" (19.05mm) | 0.472" (11.99mm) | Elastomer, Semi-Rigid, Irradiated | 21 | 0.083" (2.11mm) | 0.236" (5.99mm) | 0.750" (19.05mm) | 1.610" (40.89mm) | Boot | |
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Black | - | 0.740" (18.80mm) | 1.160" (29.46mm) | 0.480" (12.19mm) | Elastomer, Fluid Resistant | 32 | 0.200" (5.08mm) | 0.550" (13.97mm) | 0.260" (6.60mm) | 1.250" (31.75mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant | 1.390" (35.31mm) | 2.039" (51.79mm) | 2.551" (64.80mm) | Polyolefin (PO), 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 | Adhesive Coating, Flame Retardant | 1.390" (35.31mm) | 2.039" (51.79mm) | 2.551" (64.80mm) | Polyolefin (PO), Flexible | 74 | 0.630" (16.00mm) | 2.039" (51.79mm) | 2.000" (50.80mm) | 5.130" (130.30mm) | Boot | |
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Black | - | 0.880" (22.35mm) | 1.180" (29.97mm) | 1.660" (42.16mm) | Polyolefin (PO), Semi-Rigid | 53 | 0.280" (7.11mm) | 0.580" (14.73mm) | 0.620" (15.75mm) | 3.000" (76.20mm) | Boot | |
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- | - | - | - | - | - | - | - | - | - | - | Boot, Transition - Breakout, 2:1 | |
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Black | - | 0.390" (9.91mm) | 0.941" (23.90mm) | 0.740" (18.80mm) | EPB | 11 | 0.260" (6.60mm) | 0.681" (17.30mm) | 3.449" (87.60mm) | 4.142" (105.21mm) | Boot - 90° | |
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Black | - | 1.500" (38.10mm) | 3.299" (83.79mm) | - | Polyolefin (PO), Semi-Flexible | 94 | - | - | - | 4.500" (114.30mm) | Cap | |
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Black | - | 0.390" (9.91mm) | 0.940" (23.88mm) | 0.730" (18.54mm) | Polyolefin (PO), Flexible | 11 | 0.260" (6.60mm) | 0.680" (17.27mm) | 3.450" (87.63mm) | 4.140" (105.16mm) | Boot - 90° | |
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Black | - | 0.470" (11.94mm) | 0.900" (22.86mm) | 2.000" (50.80mm) | Elastomer, Fluid Resistant | 12 | 0.110" (2.79mm) | 0.280" (7.11mm) | - | 2.750" (69.85mm) | Boot, Transition - Breakout, 4:1 | |
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Black | - | 0.880" (22.35mm) | 1.420" (36.07mm) | 1.500" (38.10mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 52 | 0.330" (8.38mm) | 0.830" (21.08mm) | 0.980" (24.89mm) | 1.810" (45.97mm) | Boot - 90° | |
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Black | - | 0.690" (17.53mm) | 1.340" (34.04mm) | - | EPB, Flexible | 32 | 0.500" (12.70mm) | 1.060" (26.92mm) | 0.880" (22.35mm) | 5.750" (146.05mm) | Boot | |
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Black | - | 0.690" (17.53mm) | 1.340" (34.04mm) | - | EPB, Flexible | 32 | 0.500" (12.70mm) | 1.060" (26.92mm) | 0.880" (22.35mm) | 5.750" (146.05mm) | Boot | |
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Black | - | 0.690" (17.53mm) | 1.340" (34.04mm) | - | EPB, Flexible | 32 | 0.500" (12.70mm) | 1.060" (26.92mm) | 0.880" (22.35mm) | 5.750" (146.05mm) | Boot | |
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Black | - | 0.700" (17.78mm) | 0.940" (23.88mm) | 1.300" (33.02mm) | Polyolefin (PO), Semi-Rigid | 42 | 0.220" (5.59mm) | 0.460" (11.68mm) | 0.370" (9.40mm) | - | Boot - 90° | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 0.880" (22.35mm) | 1.420" (36.07mm) | 1.380" (35.05mm) | Polyolefin (PO), Semi-Rigid | 52 | 0.330" (8.38mm) | 1.420" (36.07mm) | 1.180" (29.97mm) | - | Boot - 90° | |
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White | - | 0.880" (22.35mm) | 1.420" (36.07mm) | 1.380" (35.05mm) | Polyolefin (PO), Semi-Rigid | - | 0.330" (8.38mm) | 1.420" (36.07mm) | 0.570" (14.48mm) | 1.720" (43.69mm) | Boot - 90° | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 0.880" (22.35mm) | 1.420" (36.07mm) | 1.380" (35.05mm) | Elastomer, Fluid Resistant | 52 | 0.330" (8.38mm) | 1.420" (36.07mm) | 1.180" (29.97mm) | - | Boot - 90° | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 0.560" (14.22mm) | 0.760" (19.30mm) | 1.010" (25.65mm) | Polyolefin (PO), Semi-Rigid | 32 | 0.160" (4.06mm) | 0.320" (8.13mm) | 0.320" (8.13mm) | - | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.480" (12.19mm) | Polyolefin (PO), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | - | 2.300" (58.42mm) | Boot | |
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Black | - | 0.870" (22.10mm) | 1.402" (35.61mm) | 0.480" (12.19mm) | Polyolefin (PO), Flexible | - | 0.480" (12.19mm) | 1.130" (28.70mm) | 1.370" (34.80mm) | 2.500" (63.50mm) | Boot | |
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Black | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.780" (19.81mm) | Polyolefin (PO), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 3.902" (99.11mm) | 4.880" (123.95mm) | Boot - 90° | |
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Black | - | 2.311" (58.70mm) | 2.311" (58.70mm) | - | Polyolefin (PO), Semi-Flexible | 42 | 0.339" (8.61mm) | 0.681" (17.30mm) | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.780" (19.81mm) | Elastomer, Semi-Rigid, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 1.380" (35.05mm) | 2.358" (59.89mm) | Boot - 90° | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | - | - | - | Elastomer, Semi-Rigid, Irradiated | 21 | - | - | - | - | Boot - 90° | |
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Black | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.449" (11.40mm) | 0.882" (22.40mm) | 0.728" (18.49mm) | Polyolefin (PO), Flexible, Irradiated | 21 | 0.252" (6.40mm) | 0.882" (22.40mm) | 3.449" (87.60mm) | 4.142" (105.21mm) | Boot - 90° | |
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Black | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.780" (19.81mm) | Polyolefin (PO), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 3.902" (99.11mm) | 4.880" (123.95mm) | Boot - 90° | |
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Black | - | 0.390" (9.91mm) | 0.980" (24.89mm) | - | Polyolefin (PO), Flexible | - | - | 0.980" (24.89mm) | 0.689" (17.50mm) | 4.752" (120.70mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.780" (19.81mm) | Polyolefin (PO), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 2.118" (53.80mm) | 3.098" (78.69mm) | Boot - 90° | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Strain Resistant | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.161" (29.49mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 22 | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.161" (29.49mm) | 2.311" (58.70mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Strain Resistant | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.161" (29.49mm) | Polyolefin (PO), Flexible, Irradiated | 22 | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.161" (29.49mm) | 2.311" (58.70mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 2.280" (57.91mm) | 2.280" (57.91mm) | - | Elastomer, Semi-Rigid | 52 | 0.421" (10.69mm) | 0.752" (19.10mm) | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | - | 0.228" (5.79mm) | 0.709" (18.01mm) | 1.024" (26.00mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.228" (5.80mm), 0.118" (3.00mm) | 0.709" (18.00mm), 0.315" (8.00mm) | 0.748" (19.00mm) | 2.047" (52.00mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | Flame Retardant | 1.079" (27.41mm) | 1.681" (42.70mm) | 2.469" (62.71mm) | Polyolefin (PO), Flexible | 63 | 0.370" (9.40mm) | 1.681" (42.70mm) | 0.992" (25.20mm) | 3.902" (99.11mm) | 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 | - | 0.291" (7.39mm) | 0.520" (13.21mm) | 1.300" (33.02mm) | Elastomer, Semi-Rigid | 12 | 0.150" (3.81mm) | 0.260" (6.60mm) | 0.760" (19.30mm) | 2.201" (55.91mm) | Boot, Transition - Side Breakout, 90° | |
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Black | Adhesive Coating, Fluid Resistant, Lip | 1.110" (28.19mm) | 1.690" (42.93mm) | 0.830" (21.08mm) | Elastomer, Semi-Rigid | 63 | 0.390" (9.91mm) | 1.690" (42.93mm) | 0.830" (21.08mm) | 2.323" (59.00mm) | Boot | |
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Black | Adhesive Coating, Fluid Resistant | 1.110" (28.19mm) | 1.690" (42.93mm) | 2.402" (61.01mm) | Elastomer, Semi-Rigid | 63 | 0.390" (9.91mm) | 1.690" (42.93mm) | 0.830" (21.08mm) | 3.898" (99.01mm) | Boot | |
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Black | - | 0.260" (6.60mm) | 0.780" (19.81mm) | 1.600" (40.64mm) | Polyolefin (PO), Flexible | 1 | 0.260" (6.60mm) | 0.520" (13.21mm) | 1.600" (40.64mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 0.710" (18.03mm) | 0.940" (23.88mm) | 1.460" (37.08mm) | Polyolefin (PO), Semi-Rigid | 42 | 0.220" (5.59mm) | 0.460" (11.68mm) | 0.500" (12.70mm) | 2.120" (53.85mm) | Boot |
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