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, 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 | - | 1.350" (34.29mm) | 2.310" (58.67mm) | - | Elastomer, Fluid Resistant | 42 | 0.340" (8.64mm) | 1.350" (34.29mm) | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | - | 2.280" (57.91mm) | 2.280" (57.91mm) | 1.040" (26.42mm) | Elastomer, Semi-Rigid, Irradiated | 52 | 0.360" (9.14mm) | 0.540" (13.72mm) | - | 2.490" (63.25mm) | Boot - 90° | |
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- | - | 2.280" (57.91mm) | 1.480" (37.59mm) | 1.252" (31.80mm) | Polyolefin (PO), Flexible | - | 0.421" (10.69mm) | 1.480" (37.59mm) | - | 2.402" (61.01mm) | Boot, Rectangular | |
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Black | - | 1.110" (28.19mm) | 1.680" (42.67mm) | 2.220" (56.39mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 63 | 0.390" (9.91mm) | 0.870" (22.10mm) | - | 4.080" (103.63mm) | Boot | |
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- | - | 0.449" (11.40mm) | 1.354" (34.39mm) | 1.618" (41.10mm) | Polyolefin (PO), Flexible | 12 | 0.201" (5.11mm), 0.449" (11.40mm) | 0.500" (12.70mm), 0.902" (22.91mm) | 1.618" (41.10mm) | 4.740" (120.40mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 1.110" (28.19mm) | 1.680" (42.67mm) | 2.220" (56.39mm) | Elastomer, Fluid Resistant | 63 | 0.390" (9.91mm) | 1.680" (42.67mm) | - | 4.080" (103.63mm) | Boot | |
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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), 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 | - | 0.390" (9.91mm) | 0.940" (23.88mm) | 0.730" (18.54mm) | EPB, Flexible | 11 | 0.260" (6.60mm) | 0.680" (17.27mm) | - | 2.750" (69.85mm) | Boot - 90° | |
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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), 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 | - | 2.280" (57.91mm) | 2.280" (57.91mm) | 1.040" (26.42mm) | Polyolefin (PO), Semi-Rigid | 52 | 0.358" (9.09mm) | 0.752" (19.10mm) | - | - | Boot - 90° | |
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Black | - | 2.280" (57.91mm) | 2.280" (57.91mm) | 1.040" (26.42mm) | Polyolefin (PO), Semi-Rigid | 52 | 0.358" (9.09mm) | 0.752" (19.10mm) | - | - | Boot - 90° | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.161" (29.49mm) | 1.470" (37.34mm) | 0.710" (18.03mm) | Polyolefin (PO), Flexible, Irradiated | 53 | 0.409" (10.39mm) | 1.470" (37.34mm) | 5.598" (142.19mm) | 7.000" (177.80mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.161" (29.49mm) | 1.470" (37.34mm) | 0.710" (18.03mm) | Polyolefin (PO), Flexible, Irradiated | 53 | 0.409" (10.39mm) | 1.470" (37.34mm) | 5.598" (142.19mm) | 7.000" (177.80mm) | Boot | |
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- | - | 0.697" (17.70mm) | 1.398" (35.51mm) | 1.000" (25.40mm) | Polyolefin (PO), Semi-Rigid | - | 0.303" (7.70mm) | 0.598" (15.19mm) | 1.000" (25.40mm) | 2.000" (50.80mm) | Boot, Transition - Side Breakout, 90° | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.902" (22.91mm) | 1.340" (34.04mm) | 0.480" (12.19mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 42 | 0.382" (9.70mm) | 1.340" (34.04mm) | 2.870" (72.90mm) | 4.000" (101.60mm) | Boot | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.902" (22.91mm) | 1.340" (34.04mm) | 0.480" (12.19mm) | Elastomer, Semi-Rigid, Irradiated | 42 | 0.382" (9.70mm) | 1.340" (34.04mm) | 2.870" (72.90mm) | 4.000" (101.60mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.752" (19.10mm) | 1.030" (26.16mm) | 0.710" (18.03mm) | Polyolefin (PO), Flexible, Irradiated | 32 | 0.102" (2.59mm) | 0.300" (7.62mm) | 1.150" (29.21mm) | 2.650" (67.31mm) | Boot - 90° | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.752" (19.10mm) | 1.030" (26.16mm) | 0.710" (18.03mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 32 | 0.102" (2.59mm) | 0.300" (7.62mm) | 1.150" (29.21mm) | 2.650" (67.31mm) | Boot - 90° | |
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Black | - | 0.940" (23.88mm) | 0.940" (23.88mm) | 3.400" (86.36mm) | VPB, Flexible | 11 | 0.260" (6.60mm) | 0.680" (17.27mm) | 0.460" (11.68mm) | 4.170" (105.92mm) | Boot | |
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Black | - | 0.260" (6.60mm) | 0.520" (13.21mm) | 0.820" (20.83mm) | Polyolefin (PO), Flexible | 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 | - | 0.870" (22.10mm) | 1.402" (35.61mm) | 0.858" (21.79mm) | EPB | 42 | 0.402" (10.21mm) | 1.130" (28.70mm) | 5.220" (132.59mm) | 6.780" (172.21mm) | Boot - 90° | |
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Black | Adhesive Coating, Fluid Resistant, Lip | 1.752" (44.50mm) | 2.600" (66.04mm) | 3.540" (89.92mm) | Elastomer, Semi-Rigid | 85 | 0.661" (16.79mm) | 2.600" (66.04mm) | 2.780" (70.61mm) | 6.690" (169.93mm) | Boot | |
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Black | - | 0.260" (6.60mm) | 0.780" (19.81mm) | 1.690" (42.93mm) | Polyolefin (PO), Flexible | 21 | 0.260" (6.60mm) | 0.520" (13.21mm) | 1.690" (42.93mm) | 3.382" (85.90mm) | Boot, Transition - Breakout, 3:1 | |
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Black | - | 2.280" (57.91mm) | 2.320" (58.93mm) | 1.252" (31.80mm) | Polyolefin (PO), Semi-Rigid | 52 | 0.421" (10.69mm) | 0.752" (19.10mm) | - | 2.402" (61.01mm) | Boot, Rectangular | |
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Black | - | 2.320" (58.93mm) | 2.430" (61.72mm) | 1.500" (38.10mm) | Polyolefin (PO), Flexible | 21 | 0.590" (14.99mm) | 1.200" (30.48mm) | 1.000" (25.40mm) | 6.000" (152.40mm) | Boot | |
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Black | - | 2.161" (54.89mm) | 2.118" (53.80mm) | - | Polyolefin (PO), Flexible | 53 | 0.882" (22.40mm) | 1.800" (45.72mm) | 1.118" (28.40mm) | 6.752" (171.50mm) | Boot | |
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Black | - | 0.840" (21.34mm) | 1.420" (36.07mm) | 1.460" (37.08mm) | Fluoroelastomer (FKM), Flexible | 12 | 0.330" (8.38mm) | 0.830" (21.08mm) | 0.980" (24.89mm) | - | 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) | 2.240" (56.90mm) | 3.500" (88.90mm) | Boot - 90° | |
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Black | - | 0.700" (17.78mm) | 1.100" (27.94mm) | 1.070" (27.18mm) | - | 22 | 0.220" (5.59mm) | 0.790" (20.07mm) | 0.380" (9.65mm) | - | Boot - 45° | |
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Black | - | 0.728" (18.49mm) | 1.220" (30.99mm) | 0.480" (12.19mm) | EPB, Flexible | - | 0.480" (12.19mm) | 0.961" (24.41mm) | 1.480" (37.59mm) | 2.500" (63.50mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant | 0.620" (15.75mm) | 1.250" (31.75mm) | - | Elastomer, Semi-Rigid | 23 | 0.620" (15.75mm) | 1.250" (31.75mm) | - | - | Boot - 90° | |
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Black | - | 0.740" (18.80mm) | 0.870" (22.10mm) | 1.100" (27.94mm) | Polyolefin (PO), Flexible | 46 | 0.310" (7.87mm) | 0.810" (20.57mm) | 0.550" (13.97mm) | 2.100" (53.34mm) | Boot | |
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Black | - | 0.740" (18.80mm) | 0.870" (22.10mm) | 1.100" (27.94mm) | Polyolefin (PO), Flexible | 46 | 0.310" (7.87mm) | 0.810" (20.57mm) | 0.550" (13.97mm) | 2.100" (53.34mm) | Boot | |
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Black | - | 0.740" (18.80mm) | 0.870" (22.10mm) | 1.100" (27.94mm) | Polyolefin (PO), Flexible | 46 | 0.310" (7.87mm) | 0.810" (20.57mm) | 0.550" (13.97mm) | 2.100" (53.34mm) | Boot | |
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Black | - | 1.110" (28.19mm) | 1.681" (42.70mm) | 1.728" (43.89mm) | Polyolefin (PO), Semi-Rigid | 63 | 0.390" (9.91mm) | 1.681" (42.70mm) | 1.300" (33.02mm) | - | Boot - 90° | |
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Black | - | 1.110" (28.19mm) | 1.680" (42.67mm) | 1.730" (43.94mm) | Elastomer, Fluid Resistant | 63 | 0.390" (9.91mm) | 1.680" (42.67mm) | 1.300" (33.02mm) | - | Boot - 90° | |
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Black | Adhesive Coating | 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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- | - | 1.161" (29.49mm) | 1.470" (37.34mm) | 0.551" (14.00mm) | - | - | 0.409" (10.39mm) | 1.470" (37.34mm) | - | - | Boot | |
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Black | - | 0.410" (10.41mm) | 0.540" (13.72mm) | 0.910" (23.11mm) | Elastomer, Fluid Resistant | 21 | 0.120" (3.05mm) | 0.260" (6.60mm) | 0.300" (7.62mm) | - | Boot - 90° | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 1.024" (26.00mm) | 1.346" (34.19mm) | 0.823" (20.90mm) | Elastomer, Semi-Rigid, Irradiated | 53 | 0.122" (3.10mm) | 0.378" (9.60mm) | 2.012" (51.10mm) | 3.319" (84.30mm) | Boot | |
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Black | Adhesive Coating | - | - | - | Polyolefin (PO), Semi-Flexible | 12 | - | - | - | - | Boot, Transition - Side Breakout, 45° | |
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Black | - | 0.730" (18.54mm) | 1.220" (30.99mm) | 0.480" (12.19mm) | Polyolefin (PO), Flexible | 32 | 0.350" (8.89mm) | 0.960" (24.38mm) | 2.480" (62.99mm) | 3.500" (88.90mm) | Boot | |
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Black | - | 1.331" (33.81mm) | 2.091" (53.11mm) | 2.079" (52.81mm) | Polyolefin (PO), Semi-Rigid | 74 | 0.591" (15.01mm) | 2.091" (53.11mm) | 2.098" (53.29mm) | - | Boot - 90° |
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