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 | - | 0.880" (22.35mm) | 1.420" (36.07mm) | 1.630" (41.40mm) | Polyolefin (PO), Semi-Rigid | 53 | 0.330" (8.38mm) | 1.850" (46.99mm) | 0.820" (20.83mm) | 3.150" (80.01mm) | - | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 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 | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.880" (22.35mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 12 | 0.130" (3.30mm) | 0.260" (6.60mm) | 0.760" (19.30mm) | - | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 2.280" (57.91mm) | 2.280" (57.91mm) | - | Polyolefin (PO), Semi-Rigid | 52 | 0.421" (10.69mm) | 0.752" (19.10mm) | - | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | Abrasion Resistant, Adhesive Coating, Corrosion Resistant, Flame Retardant, Round Base, Weather Resistant | 0.900" (22.86mm) | 1.693" (43.00mm) | 2.300" (58.42mm) | Polyolefin (PO), Semi-Rigid | - | 0.300" (7.62mm) | 0.820" (20.83mm) | 1.181" (30.00mm) | - | - | Boot, Transition - Breakout, 3:1 | |
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- | - | - | - | - | - | - | - | - | - | - | - | Boot, Transition - Breakout, 3:1 | |
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Black | Abrasion Resistant, Adhesive Coating, Corrosion Resistant, Flame Retardant, Weather Resistant | 0.430" (10.92mm) | 0.900" (22.86mm) | 2.008" (51.00mm) | Polyolefin (PO), Semi-Rigid | - | 0.118" (3.00mm) | 0.280" (7.11mm) | 0.787" (19.99mm) | - | - | Boot, Transition - Breakout, 4:1 | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.343" (34.11mm) | 1.717" (43.61mm) | 1.031" (26.19mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 63 | 0.142" (3.61mm) | 0.449" (11.40mm) | 2.272" (57.71mm) | 3.921" (99.59mm) | - | Boot | |
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Black | Abrasion Resistant, Corrosion Resistant, Flame Retardant, Weather Resistant | 0.900" (22.86mm) | 1.693" (43.00mm) | 2.300" (58.42mm) | Polyolefin (PO), Semi-Rigid | - | 0.300" (7.62mm) | 0.820" (20.83mm) | 1.181" (30.00mm) | - | - | Boot, Transition - Breakout, 3:1 | |
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- | - | 0.272" (6.91mm) | 0.559" (14.20mm) | - | NBCCS, Flexible | 11 | 0.189" (4.80mm) | 0.441" (11.20mm) | 0.689" (17.50mm) | 4.752" (120.70mm) | - | Boot | |
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Black | - | 0.618" (15.70mm) | 1.201" (30.51mm) | 1.252" (31.80mm) | Polyolefin (PO), Semi-Flexible | 14 | 0.421" (10.69mm) | 0.787" (19.99mm) | 2.000" (50.80mm) | 3.252" (82.60mm) | - | Boot, Transition - Side Breakout, 30° | |
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Black | Abrasion Resistant, Adhesive Coating, Corrosion Resistant, Flame Retardant, No Markings, Weather Resistant | 0.500" (12.70mm) | 1.600" (40.64mm) | 2.000" (50.80mm) | Polyolefin (PO), Semi-Rigid | - | 0.150" (3.81mm) | 0.500" (12.70mm) | - | 4.090" (103.89mm) | 3.140" (79.76mm) | Boot, Transition - Breakout, 2:1 | |
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Black | - | 1.750" (44.45mm) | 2.600" (66.04mm) | 3.310" (84.07mm) | Elastomer, Fluid Resistant | 85 | 0.800" (20.32mm) | 2.600" (66.04mm) | - | 6.500" (165.10mm) | - | Boot | |
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Black | - | 2.040" (51.82mm) | 2.040" (51.82mm) | 2.540" (64.52mm) | Polyolefin (PO), Flexible | 74 | 0.620" (15.75mm) | 2.040" (51.82mm) | - | 5.130" (130.30mm) | - | Boot | |
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Black | - | 0.800" (20.32mm) | 1.380" (35.05mm) | 0.830" (21.08mm) | Polyolefin (PO), Semi-Rigid | 13 | 0.720" (18.29mm) | 1.380" (35.05mm) | - | 1.460" (37.08mm) | - | Boot | |
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Black, Red | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 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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- | - | 0.490" (12.45mm) | 1.060" (26.92mm) | 1.660" (42.16mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 1.680" (42.67mm) | - | - | Boot, Transition - Side Breakout, 45° | |
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Black | - | 0.390" (9.91mm) | 0.940" (23.88mm) | 2.230" (56.64mm) | Polyolefin (PO), Flexible | 21 | 0.260" (6.60mm) | 0.680" (17.27mm) | 0.460" (11.68mm) | 3.000" (76.20mm) | - | Boot | |
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Black | - | 0.520" (13.21mm) | 1.071" (27.20mm) | 0.480" (12.19mm) | EPB, Flexible | - | 0.480" (12.19mm) | 0.819" (20.80mm) | 0.858" (21.79mm) | 1.748" (44.40mm) | - | Boot | |
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Black | - | 0.520" (13.21mm) | 1.070" (27.18mm) | 0.480" (12.19mm) | Polyolefin (PO), Flexible | 21 | 0.300" (7.62mm) | 0.820" (20.83mm) | 2.360" (59.94mm) | 3.520" (89.41mm) | - | Boot | |
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Black | - | 0.520" (13.21mm) | 1.070" (27.18mm) | 2.110" (53.59mm) | EPB, Flexible | 21 | 0.300" (7.62mm) | 0.820" (20.83mm) | 0.480" (12.19mm) | - | - | Boot | |
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- | - | 0.520" (13.21mm) | 1.070" (27.18mm) | 0.480" (12.19mm) | Polyolefin (PO), Flexible | 21 | 0.300" (7.62mm) | 0.820" (20.83mm) | 2.360" (59.94mm) | 3.520" (89.41mm) | - | Boot | |
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Black | - | 0.500" (12.70mm) | 1.060" (26.92mm) | 2.118" (53.80mm) | Polyolefin (PO), Flexible | 34 | 0.230" (5.84mm) | 0.520" (13.21mm) | 1.520" (38.61mm) | 4.240" (107.70mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.410" (10.41mm) | 0.540" (13.72mm) | - | Polyolefin (PO), Semi-Rigid | 21 | 0.220" (5.59mm) | 0.460" (11.68mm) | 0.230" (5.84mm) | - | - | Boot - 90° | |
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Black | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.902" (22.91mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.118" (3.00mm) | 0.260" (6.60mm) | 0.839" (21.31mm) | 1.760" (44.70mm) | - | Boot, Transition - Side Breakout, 45° | |
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Black | Adhesive Coating, Fluid Resistant | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.902" (22.91mm) | Elastomer, Semi-Rigid | 12 | 0.118" (3.00mm) | 0.260" (6.60mm) | 0.839" (21.31mm) | 1.760" (44.70mm) | - | Boot, Transition - Side Breakout, 45° | |
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Black | - | 0.150" (3.81mm) | 0.510" (12.95mm) | 0.870" (22.10mm) | Elastomer, Fluid Resistant | 12 | 0.100" (2.54mm) | 0.280" (7.11mm) | 0.750" (19.05mm) | - | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.750" (19.05mm) | 1.110" (28.19mm) | - | Elastomer, Fluid Resistant | 71 | 0.200" (5.08mm) | 0.750" (19.05mm) | - | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | - | 0.690" (17.53mm) | 1.000" (25.40mm) | - | Polyolefin (PO), Flexible | 13 | 0.280" (7.11mm) | 0.500" (12.70mm) | 0.750" (19.05mm) | 4.250" (107.95mm) | - | Boot, Transition - Breakout, 3:1 | |
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Black | Abrasion Resistant, Corrosion Resistant, Flame Retardant, Round Base, Weather Resistant | 0.500" (12.70mm) | 1.600" (40.64mm) | 2.000" (50.80mm) | Polyolefin (PO), Semi-Rigid | - | 0.150" (3.81mm) | 0.500" (12.70mm) | - | 4.090" (103.89mm) | 3.140" (79.76mm) | Boot, Transition - Breakout, 2:1 | |
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | - | - | - | - | 63 | - | - | - | - | - | - | |
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Black | - | 0.240" (6.10mm) | 0.510" (12.95mm) | 0.870" (22.10mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 12 | 0.130" (3.30mm) | 0.350" (8.89mm) | 0.750" (19.05mm) | - | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | Adhesive Coating, Flame Retardant | 0.700" (17.78mm) | 0.940" (23.88mm) | 1.200" (30.48mm) | Polyolefin (PO), Flexible | 42 | 0.280" (7.11mm) | 0.610" (15.49mm) | 0.400" (10.16mm) | - | - | Boot - 90° | |
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Black | Adhesive Coating, Fluid Resistant | 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 | - | 0.311" (7.90mm) | 0.701" (17.81mm) | 0.791" (20.10mm) | Fluoroelastomer (FKM), Flexible | 11 | 0.150" (3.81mm) | 0.390" (9.91mm) | 0.449" (11.40mm) | - | - | Boot - 90° | |
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Black | - | 0.880" (22.35mm) | 1.180" (29.97mm) | 1.520" (38.61mm) | Polyolefin (PO), Flexible | 53 | 0.280" (7.11mm) | 0.580" (14.73mm) | 0.490" (12.45mm) | - | - | Boot - 90° | |
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Black | - | 0.449" (11.40mm) | 1.350" (34.29mm) | 2.370" (60.20mm) | Polyolefin (PO), Flexible | 12 | 0.449" (11.40mm) | 0.902" (22.91mm) | 2.370" (60.20mm) | 4.740" (120.40mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
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Black | Adhesive Coating | 0.500" (12.70mm) | 1.060" (26.92mm) | 1.618" (41.10mm) | Polyolefin (PO), Semi-Rigid | 24 | 0.142" (3.61mm) | 0.260" (6.60mm) | 1.409" (35.79mm) | 3.642" (92.51mm) | - | Boot, Transition - Side Breakout, 45° | |
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Black | Adhesive Coating | 0.500" (12.70mm) | 1.060" (26.92mm) | 1.618" (41.10mm) | Polyolefin (PO), Flexible | 24 | 0.142" (3.61mm) | 0.260" (6.60mm) | 1.409" (35.79mm) | 3.642" (92.51mm) | - | Boot, Transition - Side Breakout, 45° | |
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Black | Adhesive Coating, Fluid Resistant | 0.500" (12.70mm) | 1.060" (26.92mm) | 1.618" (41.10mm) | Elastomer, Semi-Rigid | 24 | 0.142" (3.61mm) | 0.260" (6.60mm) | 1.409" (35.79mm) | 3.642" (92.51mm) | - | Boot, Transition - Side Breakout, 45° | |
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Black | - | 1.110" (28.19mm) | 1.680" (42.67mm) | 0.618" (15.70mm) | Polyolefin (PO), Semi-Rigid | - | 0.390" (9.91mm) | 1.681" (42.70mm) | 0.969" (24.60mm) | 2.480" (62.99mm) | - | Boot | |
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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) | 0.710" (18.03mm) | Elastomer, Semi-Rigid, 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, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.740" (18.80mm) | 1.327" (33.71mm) | 0.819" (20.80mm) | Elastomer, Semi-Rigid, Irradiated | 32 | 1.327" (33.71mm) | 1.157" (29.39mm) | 0.370" (9.40mm) | 2.000" (50.80mm) | - | Boot - 90° |
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