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 | - | 0.550" (13.97mm) | 0.710" (18.03mm) | 0.790" (20.07mm) | Elastomer, Fluid Resistant | 12 | 0.130" (3.30mm) | 0.310" (7.87mm) | 0.390" (9.91mm) | 1.970" (50.04mm) | Boot | |
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Black | - | 2.268" (57.61mm) | 3.217" (81.71mm) | 3.752" (95.30mm) | Polyolefin (PO), Semi-Rigid | 96 | 1.000" (25.40mm) | 3.217" (81.71mm) | - | 7.000" (177.80mm) | Boot | |
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Black | - | 1.220" (30.99mm) | - | - | Polyolefin (PO), Semi-Rigid | 34 | 0.472" (11.99mm) | 1.102" (27.99mm) | 1.060" (26.92mm) | 3.420" (86.87mm) | Feed Through | |
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Black | - | 1.220" (30.99mm) | - | - | Polyolefin (PO), Flexible | 34 | 0.472" (11.99mm) | 1.102" (27.99mm) | 1.060" (26.92mm) | 3.420" (86.87mm) | Feed Through | |
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Black | - | 0.350" (8.89mm) | 0.700" (17.78mm) | 0.750" (19.05mm) | Elastomer, Fluid Resistant | 12 | 0.350" (8.89mm), 0.200" (5.08mm) | 0.700" (17.78mm), 0.400" (10.16mm) | 0.780" (19.81mm) | 1.870" (47.50mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.618" (41.10mm) | 1.970" (50.04mm) | 1.161" (29.49mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 74 | 0.559" (14.20mm) | 1.970" (50.04mm) | 3.181" (80.80mm) | 5.201" (132.11mm) | Boot - 90° | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Mechanical Resistant, Strain Resistant | 0.531" (13.49mm) | 1.060" (26.92mm) | 2.370" (60.20mm) | Polyolefin (PO), Semi-Flexible, Halogen Free, Irradiated | 34 | 0.531" (13.49mm) | 1.060" (26.92mm) | 2.362" (59.99mm) | 4.728" (120.09mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.520" (13.21mm) | 1.060" (26.92mm) | 2.120" (53.85mm) | Polyolefin (PO), Flexible | 24 | 0.260" (6.60mm) | 0.520" (13.21mm) | 1.520" (38.61mm) | 3.820" (97.03mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.520" (13.21mm) | 1.060" (26.92mm) | 2.120" (53.85mm) | Polyolefin (PO), Flexible | 24 | 0.260" (6.60mm) | 0.520" (13.21mm) | 1.520" (38.61mm) | 3.820" (97.03mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 1.382" (35.10mm) | 2.050" (52.07mm) | 2.130" (54.10mm) | Zerohal™ | 74 | 0.618" (15.70mm) | 1.540" (39.12mm) | 1.770" (44.96mm) | 3.150" (80.01mm) | Boot - 90° | |
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Black | - | 0.580" (14.73mm) | 0.750" (19.05mm) | 1.250" (31.75mm) | Polyolefin (PO), Semi-Rigid | 22 | 0.140" (3.56mm) | 0.200" (5.08mm) | - | 1.680" (42.67mm) | Boot, Transition - Breakout, 5:1 | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Strain Resistant | - | - | - | Elastomer, Semi-Rigid, Irradiated | 34 | - | - | - | - | Boot, Transition - Breakout, 2:1 (T) | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Strain Resistant | 0.531" (13.49mm) | 1.260" (32.00mm) | - | Elastomer, Semi-Rigid, Irradiated | 34 | 0.531" (13.49mm) | 1.260" (32.00mm) | 2.362" (59.99mm) | 4.724" (120.00mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 1.752" (44.50mm) | 2.598" (65.99mm) | 3.311" (84.10mm) | Polyolefin (PO), Semi-Rigid | 85 | 0.803" (20.40mm) | 2.598" (65.99mm) | 2.583" (65.61mm) | 6.500" (165.10mm) | Boot | |
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Black | - | 1.110" (28.19mm) | 1.110" (28.19mm) | - | Elastomer, Semi-Rigid | 71 | 0.201" (5.11mm) | 0.402" (10.21mm) | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | - | 1.110" (28.19mm) | 1.530" (38.86mm) | 0.550" (13.97mm) | Polyolefin (PO), Flexible | 53 | 0.430" (10.92mm) | 1.240" (31.50mm) | 2.850" (72.39mm) | 4.250" (107.95mm) | Boot | |
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- | - | 1.110" (28.19mm) | 1.530" (38.86mm) | 0.550" (13.97mm) | Polyolefin (PO), Flexible | 53 | 0.430" (10.92mm) | 1.240" (31.50mm) | 2.850" (72.39mm) | 4.250" (107.95mm) | Boot | |
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Black | - | 0.580" (14.73mm) | 0.750" (19.05mm) | 1.250" (31.75mm) | Elastomer, Fluid Resistant | 22 | 0.140" (3.56mm) | 0.200" (5.08mm) | - | 1.680" (42.67mm) | Boot, Transition - Breakout, 5:1 | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Lip, Mechanical Resistant, Strain Resistant | 0.902" (22.91mm) | 1.340" (34.04mm) | 0.618" (15.70mm) | Polyolefin (PO), Semi-Flexible, Halogen Free, Irradiated | 42 | 0.382" (9.70mm) | 0.839" (21.31mm) | 5.150" (130.81mm) | 6.280" (159.51mm) | Boot | |
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- | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.902" (22.91mm) | Zerohal™ | 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 | - | 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 | Lip | 0.520" (13.21mm) | 1.071" (27.20mm) | 0.480" (12.19mm) | VPB, Flexible | 21 | 0.300" (7.62mm) | 0.819" (20.80mm) | 3.882" (98.60mm) | 4.772" (121.21mm) | Boot | |
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Black | - | 1.070" (27.18mm) | 1.070" (27.18mm) | 3.880" (98.55mm) | VPB, Flexible | 21 | 0.300" (7.62mm) | 0.820" (20.83mm) | 0.480" (12.19mm) | 4.770" (121.16mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.902" (22.91mm) | 1.340" (34.04mm) | 0.858" (21.79mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 42 | 0.382" (9.70mm) | 1.340" (34.04mm) | 5.220" (132.59mm) | 5.220" (132.59mm) | Boot - 90° | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.902" (22.91mm) | 1.340" (34.04mm) | 0.858" (21.79mm) | Elastomer, Semi-Rigid, Irradiated | 42 | 0.382" (9.70mm) | 1.340" (34.04mm) | 5.220" (132.59mm) | 5.220" (132.59mm) | Boot - 90° | |
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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), Semi-Rigid, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 6.661" (169.19mm) | 8.409" (213.59mm) | Boot - 90° | |
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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), Semi-Rigid, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 6.421" (163.09mm) | 8.000" (203.20mm) | Boot | |
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Black | - | 1.350" (34.29mm) | 1.500" (38.10mm) | 0.600" (15.24mm) | Elastomer, Fluid Resistant | 100 | 0.340" (8.64mm) | 0.600" (15.24mm) | 0.360" (9.14mm) | - | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.850" (46.99mm) | 2.469" (62.71mm) | 0.921" (23.39mm) | Polyolefin (PO), Flexible, Irradiated | 85 | 0.690" (17.53mm) | 2.469" (62.71mm) | 6.031" (153.19mm) | 8.000" (203.20mm) | Boot | |
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Black | - | 0.490" (12.45mm) | 0.800" (20.32mm) | 0.660" (16.76mm) | Polyolefin (PO), Semi-Rigid | 21 | 0.140" (3.56mm) | 0.620" (15.75mm) | 0.400" (10.16mm) | 1.280" (32.51mm) | Boot | |
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Black | - | 1.530" (38.86mm) | 1.530" (38.86mm) | 5.600" (142.24mm) | EPB, Flexible | 53 | 0.430" (10.92mm) | 1.240" (31.50mm) | 0.550" (13.97mm) | 7.000" (177.80mm) | Boot | |
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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 | - | 0.720" (18.29mm) | 1.402" (35.61mm) | 0.752" (19.10mm) | Polyolefin (PO), Flexible | 24 | 0.339" (8.61mm) | 0.598" (15.19mm) | 1.618" (41.10mm) | 2.500" (63.50mm) | Boot, Transition - Side Breakout, 30° | |
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Black | Adhesive Coating, Fluid Resistant | 0.720" (18.29mm) | 1.402" (35.61mm) | 0.752" (19.10mm) | Elastomer, Semi-Rigid | 24 | 0.339" (8.61mm) | 0.598" (15.19mm) | 1.618" (41.10mm) | 2.500" (63.50mm) | Boot, Transition - Side Breakout, 30° | |
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Black | - | 0.410" (10.41mm) | 0.940" (23.88mm) | 0.890" (22.61mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 21 | 0.220" (5.59mm) | 0.550" (13.97mm) | 0.580" (14.73mm) | - | Boot - 90° | |
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Black | - | 0.540" (13.72mm) | 1.570" (39.88mm) | 0.980" (24.89mm) | Elastomer, Fluid Resistant | 14 | 0.290" (7.37mm) | 0.940" (23.88mm) | 2.440" (61.98mm) | 4.330" (109.98mm) | Boot, Rectangular - Right Angle, 90° | |
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Black | - | 0.539" (13.69mm) | 1.060" (26.92mm) | 2.752" (69.90mm) | Polyolefin (PO), Semi-Flexible | 34 | 0.240" (6.10mm) | 0.520" (13.21mm) | 2.110" (53.59mm) | 5.701" (144.81mm) | Boot, Transition - Side Breakout, 45° | |
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Black | Abrasion Resistant, Fungus Resistant, Moisture Resistant, Uncoated, Weather Resistant | 2.760" (70.10mm) | 4.724" (119.99mm) | - | Polyolefin (PO), Rigid | - | - | - | - | 5.709" (145.01mm) | Cap | |
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Black | - | 0.710" (18.03mm) | 0.787" (19.99mm) | - | Polyolefin (PO), Semi-Flexible, Halogen Free | 23 | - | 0.270" (6.86mm) | 0.768" (19.51mm) | 2.835" (72.01mm) | Feed Through | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.618" (41.10mm) | 1.970" (50.04mm) | 1.161" (29.49mm) | Polyolefin (PO), Flexible, Irradiated | 74 | 0.559" (14.20mm) | 1.970" (50.04mm) | 6.819" (173.20mm) | 8.839" (224.51mm) | Boot - 90° | |
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Black | Adhesive Coating | 1.390" (35.31mm) | 1.902" (48.31mm) | 2.551" (64.80mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 74 | 0.630" (16.00mm) | 1.902" (48.31mm) | 2.000" (50.80mm) | 5.130" (130.30mm) | Boot | |
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Black | - | 1.750" (44.45mm) | 2.600" (66.04mm) | 2.600" (66.04mm) | Elastomer, Fluid Resistant | 85 | 0.800" (20.32mm) | 2.600" (66.04mm) | 2.800" (71.12mm) | - | Boot - 90° | |
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Black | - | 0.260" (6.60mm) | 0.670" (17.02mm) | 0.830" (21.08mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 11 | 0.140" (3.56mm) | 0.390" (9.91mm) | 0.980" (24.89mm) | - | Boot, Transition - Breakout, 3:1 | |
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- | - | 0.310" (7.87mm) | 0.880" (22.35mm) | 0.600" (15.24mm) | Polyolefin (PO), Flexible | 11 | 0.220" (5.59mm) | 0.880" (22.35mm) | 0.260" (6.60mm) | - | Boot | |
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Black | - | 0.740" (18.80mm) | 0.870" (22.10mm) | 1.100" (27.94mm) | Elastomer, Fluid Resistant | 44 | 0.100" (2.54mm) | 0.440" (11.18mm) | 0.620" (15.75mm) | 2.100" (53.34mm) | Boot |
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