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 | - | 0.600" (15.24mm) | 1.000" (25.40mm) | - | Elastomer, Fluid Resistant | 13 | 0.600" (15.24mm), 0.200" (5.08mm) | 1.000" (25.40mm), 0.380" (9.65mm) | 1.060" (26.92mm) | 3.620" (91.95mm) | Boot, Transition - Breakout, 3:1 | |
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- | - | 0.701" (17.81mm) | 1.000" (25.40mm) | 1.748" (44.40mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.370" (9.40mm) | 1.500" (38.10mm) | 0.417" (10.59mm) | 1.870" (47.50mm) | Boot - 90° | |
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Black | - | 1.618" (41.10mm) | 2.031" (51.59mm) | 1.161" (29.49mm) | EPB | 74 | 0.591" (15.01mm) | 1.752" (44.50mm) | 6.819" (173.20mm) | 8.839" (224.51mm) | Boot - 90° | |
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Black | - | 0.450" (11.43mm) | 1.350" (34.29mm) | 2.670" (67.82mm) | Polyolefin (PO), Flexible | 22 | 0.450" (11.43mm) | 0.810" (20.57mm) | 2.670" (67.82mm) | 5.340" (135.64mm) | Boot, Transition - Breakout, 3:1 | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 0.510" (12.95mm) | 1.060" (26.92mm) | 2.040" (51.82mm) | Elastomer, Fluid Resistant | 43 | 0.270" (6.86mm) | 0.520" (13.21mm) | 1.770" (44.96mm) | - | Boot, Transition - Breakout, 4:1 | |
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- | - | 0.449" (11.40mm) | 0.902" (22.91mm) | 1.618" (41.10mm) | EPB, Flexible | - | 0.201" (5.11mm) | 0.402" (10.21mm) | 2.480" (62.99mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.340" (34.04mm) | 1.720" (43.69mm) | 1.079" (27.41mm) | Polyolefin (PO), Flexible, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 6.661" (169.19mm) | 8.409" (213.59mm) | Boot - 90° | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 1.450" (36.83mm) | 2.850" (72.39mm) | 1.600" (40.64mm) | Polyolefin (PO), Semi-Flexible | 67 | 0.949" (24.10mm) | 2.850" (72.39mm) | - | 7.240" (183.90mm) | Boot | |
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Black | - | 0.730" (18.54mm) | 1.520" (38.61mm) | 2.950" (74.93mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 54 | 0.380" (9.65mm) | 0.760" (19.30mm) | 2.570" (65.28mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 1.750" (44.45mm) | 2.340" (59.44mm) | 3.600" (91.44mm) | Polyolefin (PO), Flexible | 86 | 0.820" (20.83mm) | 1.720" (43.69mm) | 1.650" (41.91mm) | 6.250" (158.75mm) | Boot | |
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Black | - | 0.560" (14.22mm) | 0.900" (22.86mm) | 0.440" (11.18mm) | Polyolefin (PO), Semi-Rigid | 11 | 0.410" (10.41mm) | 0.900" (22.86mm) | - | 1.070" (27.18mm) | Boot | |
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Black | Chemical Resistant, Lip, Potting (Injection) Port | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.380" (35.05mm) | Fluoroelastomer (FKM), Flexible | 42 | 0.280" (7.11mm) | 0.591" (15.01mm) | 0.984" (24.99mm) | 2.640" (67.06mm) | Boot | |
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Black | - | 1.690" (42.93mm) | 1.690" (42.93mm) | 4.660" (118.36mm) | Polyolefin (PO), Semi-Rigid | - | 0.390" (9.91mm) | 1.690" (42.93mm) | 1.110" (28.19mm) | 6.800" (172.72mm) | Boot | |
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Black | - | 0.470" (11.94mm) | - | - | Zerohal™ | 13 | 0.150" (3.81mm) | 0.390" (9.91mm) | 0.600" (15.24mm) | 2.440" (61.98mm) | Feed Through | |
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- | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.622" (41.20mm) | 1.970" (50.04mm) | 0.819" (20.80mm) | Polyolefin (PO), 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 | - | 0.882" (22.40mm) | 1.420" (36.07mm) | 1.496" (38.00mm) | Fluoroelastomer (FKM), Flexible | 52 | 0.331" (8.41mm) | 0.830" (21.08mm) | 0.984" (24.99mm) | 1.810" (45.97mm) | Boot - 90° | |
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Black | - | 0.858" (21.79mm) | 1.421" (36.09mm) | 1.382" (35.10mm) | Fluoroelastomer (FKM), Flexible | 52 | 0.331" (8.41mm) | 1.040" (26.42mm) | 1.181" (30.00mm) | - | Boot - 90° | |
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Black | - | 1.380" (35.05mm) | 2.050" (52.07mm) | 2.080" (52.83mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 74 | 0.620" (15.75mm) | 1.540" (39.12mm) | 2.120" (53.85mm) | - | Boot - 90° | |
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Black | - | 1.780" (45.21mm) | 1.780" (45.21mm) | 6.420" (163.07mm) | VPB, Flexible | 63 | 0.500" (12.70mm) | 1.510" (38.35mm) | 0.600" (15.24mm) | 8.000" (203.20mm) | Boot | |
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Black | - | 1.110" (28.19mm) | 1.530" (38.86mm) | 0.960" (24.38mm) | Elastomer, Fluid Resistant | 53 | 0.430" (10.92mm) | 1.240" (31.50mm) | 5.660" (143.76mm) | 7.290" (185.17mm) | Boot - 90° | |
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- | - | 0.790" (20.07mm) | 2.370" (60.20mm) | 2.670" (67.82mm) | Polyolefin (PO), Flexible | - | 0.790" (20.07mm) | 1.420" (36.07mm) | 2.670" (67.82mm) | - | Boot, Transition - Breakout, 3:1 | |
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Black | - | 0.560" (14.22mm) | 1.180" (29.97mm) | 1.060" (26.92mm) | Fluoroelastomer (FKM), Flexible | 32 | 0.230" (5.84mm) | 0.590" (14.99mm) | 0.330" (8.38mm) | 1.260" (32.00mm) | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.780" (19.81mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 0.630" (16.00mm) | 3.902" (99.11mm) | 4.880" (123.95mm) | Boot - 90° | |
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- | - | 0.260" (6.60mm) | 0.780" (19.81mm) | 1.590" (40.39mm) | Polyolefin (PO), Flexible | 11 | 0.260" (6.60mm) | 0.520" (13.21mm) | 1.590" (40.39mm) | 3.180" (80.77mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 2.311" (58.70mm) | 2.360" (59.94mm) | 1.118" (28.40mm) | Fluoroelastomer (FKM), Flexible | 42 | 0.339" (8.61mm) | 0.681" (17.30mm) | - | 2.098" (53.29mm) | Boot, Rectangular | |
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Black | - | 1.307" (33.20mm) | 3.280" (83.31mm) | 5.272" (133.91mm) | Polyolefin (PO), Flexible | 4 | 1.307" (33.20mm) | 2.157" (54.79mm) | 5.272" (133.91mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.510" (12.95mm) | 0.760" (19.30mm) | 0.460" (11.68mm) | Elastomer, Fluid Resistant | 21 | 0.080" (2.03mm) | 0.250" (6.35mm) | 1.490" (37.85mm) | 2.380" (60.45mm) | Boot | |
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Black | - | 0.600" (15.24mm) | 1.200" (30.48mm) | 1.300" (33.02mm) | Elastomer, Fluid Resistant | 14 | 0.350" (8.89mm) | 0.700" (17.78mm) | - | 2.360" (59.94mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.450" (11.43mm) | 1.350" (34.29mm) | 2.670" (67.82mm) | Polyolefin (PO), Flexible | 22 | 0.450" (11.43mm) | 0.810" (20.57mm) | 2.670" (67.82mm) | 5.340" (135.64mm) | Boot, Transition - Breakout, 3:1 | |
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Black | - | 1.060" (26.92mm) | 2.189" (55.60mm) | 3.280" (83.31mm) | Polyolefin (PO), Flexible | 48 | 0.272" (6.91mm) | 0.520" (13.21mm) | 2.831" (71.91mm) | 7.280" (184.91mm) | Boot, Transition - Side Breakout, 45° | |
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Black | Adhesive Coating, Lip | 1.382" (35.10mm) | 2.050" (52.07mm) | 2.830" (71.88mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 74 | 0.618" (15.70mm) | 1.540" (39.12mm) | 1.970" (50.04mm) | 5.120" (130.05mm) | Boot | |
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Black | Adhesive Coating, Lip | 1.382" (35.10mm) | 2.050" (52.07mm) | 2.830" (71.88mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 74 | 0.618" (15.70mm) | 1.540" (39.12mm) | 1.970" (50.04mm) | 5.120" (130.05mm) | Boot | |
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Black | Adhesive Coating | 0.449" (11.40mm) | 1.000" (25.40mm) | 2.480" (62.99mm) | EPB | 32 | 0.295" (7.49mm) | 0.598" (15.19mm) | 2.480" (62.99mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.728" (18.49mm) | 1.220" (30.99mm) | 0.480" (12.19mm) | Fluoropolymer | - | 0.480" (12.19mm) | 1.220" (30.99mm) | 4.110" (104.39mm) | 5.461" (138.71mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.902" (22.91mm) | 1.340" (34.04mm) | 0.618" (15.70mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 42 | 0.382" (9.70mm) | 0.839" (21.31mm) | 5.150" (130.81mm) | 6.280" (159.51mm) | Boot | |
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Black | - | 1.740" (44.20mm) | 2.420" (61.47mm) | 1.700" (43.18mm) | Polyolefin (PO), Semi-Rigid | 16 | 0.410" (10.41mm) | 1.250" (31.75mm), 0.970" (24.64mm) | 1.850" (46.99mm) | 4.750" (120.65mm) | Boot, Transition - Breakout, 3:1 | |
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Black | - | 0.740" (18.80mm) | 1.520" (38.61mm) | 2.420" (61.47mm) | Polyolefin (PO), Semi-Rigid | 34 | 0.380" (9.65mm) | 0.760" (19.30mm) | 2.900" (73.66mm) | 5.320" (135.13mm) | Boot, Transition - Breakout, 3:1 | |
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Black | Drain Holes, Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.791" (20.10mm) | 1.220" (30.99mm) | 1.783" (45.29mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 42 | 0.280" (7.11mm) | 0.710" (18.03mm) | 0.984" (24.99mm) | 2.170" (55.12mm) | Boot - 90° | |
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Black, Yellow | Drain Holes, Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.480" (12.19mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 0.630" (16.00mm) | 3.882" (98.60mm) | 4.772" (121.21mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.591" (15.01mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 0.630" (16.00mm) | 3.882" (98.60mm) | 4.772" (121.21mm) | Boot | |
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Black | Drain Holes, Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.240" (6.10mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 0.630" (16.00mm) | 3.882" (98.60mm) | 4.772" (121.21mm) | Boot |
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