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 | - | 0.472" (11.99mm) | - | - | Polyolefin (PO), Flexible | 13 | 0.157" (3.99mm) | 0.394" (10.01mm) | 0.602" (15.29mm) | 2.440" (61.98mm) | Feed Through | |
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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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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 1.340" (34.04mm) | 1.720" (43.69mm) | 1.079" (27.41mm) | Elastomer, 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 | - | 1.079" (27.41mm) | 1.728" (43.89mm) | 1.728" (43.89mm) | Polyolefin (PO), Semi-Flexible | 63 | 0.370" (9.40mm) | 1.079" (27.41mm) | 1.340" (34.04mm) | - | Boot - 90° | |
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- | - | 1.661" (42.19mm) | 1.150" (29.21mm) | 1.000" (25.40mm) | Polyolefin (PO), Semi-Rigid | - | 0.319" (8.10mm) | 1.150" (29.21mm) | - | 1.772" (45.01mm) | Boot, Rectangular | |
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- | - | 1.098" (27.89mm) | 1.693" (43.00mm) | 1.772" (45.01mm) | Elastomer | - | 0.390" (9.91mm) | 0.984" (24.99mm) | 2.559" (65.00mm) | - | Boot - 45° | |
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Black | - | 0.490" (12.45mm) | 1.060" (26.92mm) | 1.500" (38.10mm) | Polyolefin (PO), Semi-Rigid | 23 | 0.240" (6.10mm) | 0.520" (13.21mm) | 1.700" (43.18mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 0.490" (12.45mm) | 1.060" (26.92mm) | 1.500" (38.10mm) | Polyolefin (PO), Semi-Rigid | 23 | 0.240" (6.10mm) | 0.710" (18.03mm) | 1.690" (42.93mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.490" (12.45mm) | 1.960" (49.78mm) | 1.500" (38.10mm) | Elastomer, Fluid Resistant | 23 | 0.240" (6.10mm) | 0.520" (13.21mm) | 1.700" (43.18mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | Flame Retardant, Fluid Resistant | 2.280" (57.91mm) | 2.730" (69.34mm) | 1.250" (31.75mm) | Elastomer, Semi-Rigid | 52 | 0.420" (10.67mm) | 0.740" (18.80mm) | - | 2.400" (60.96mm) | Boot, Rectangular | |
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Black | - | 0.690" (17.53mm) | 1.340" (34.04mm) | - | VPB, Flexible | 32 | 0.500" (12.70mm) | 1.060" (26.92mm) | 0.880" (22.35mm) | 5.750" (146.05mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant | 1.720" (43.69mm) | 2.598" (65.99mm) | 3.551" (90.20mm) | Polyolefin (PO), Semi-Rigid | 85 | 0.772" (19.61mm) | 2.598" (65.99mm) | 2.150" (54.61mm) | 6.350" (161.29mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant | 1.720" (43.69mm) | 2.598" (65.99mm) | 3.551" (90.20mm) | Polyolefin (PO), Semi-Rigid | 85 | 0.772" (19.61mm) | 2.598" (65.99mm) | 2.150" (54.61mm) | 6.350" (161.29mm) | Boot | |
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Black | - | 1.720" (43.69mm) | 2.598" (65.99mm) | 3.551" (90.20mm) | Polyolefin (PO), Flexible | 85 | 0.772" (19.61mm) | 2.598" (65.99mm) | 2.150" (54.61mm) | 6.350" (161.29mm) | Boot | |
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Black | Adhesive Coating, Fluid Resistant | 1.720" (43.69mm) | 2.598" (65.99mm) | 3.551" (90.20mm) | Elastomer, Semi-Rigid | 85 | 0.772" (19.61mm) | 2.598" (65.99mm) | 2.150" (54.61mm) | 6.350" (161.29mm) | Boot | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 1.382" (35.10mm) | 2.039" (51.79mm) | 2.539" (64.49mm) | Polyolefin (PO), Semi-Rigid | 74 | 0.622" (15.80mm) | 2.039" (51.79mm) | - | 5.130" (130.30mm) | Boot | |
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Black | Adhesive Coating, Fluid Resistant | 1.331" (33.81mm) | 2.091" (53.11mm) | 2.079" (52.81mm) | Elastomer, Semi-Rigid | 74 | 0.591" (15.01mm) | 2.091" (53.11mm) | 2.098" (53.29mm) | - | Boot - 90° | |
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Black | - | 1.380" (35.05mm) | 2.040" (51.82mm) | 2.540" (64.52mm) | Polyolefin (PO), Flexible | 74 | 0.620" (15.75mm) | 2.040" (51.82mm) | 1.560" (39.62mm) | 5.130" (130.30mm) | Boot | |
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- | - | 1.380" (35.05mm) | 2.040" (51.82mm) | - | - | - | 0.620" (15.75mm) | - | - | - | - | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.449" (11.40mm) | 0.882" (22.40mm) | 0.461" (11.71mm) | Polyolefin (PO), Flexible, Irradiated | 11 | 0.252" (6.40mm) | 0.882" (22.40mm) | 2.228" (56.59mm) | 3.000" (76.20mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Mechanical 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 | Adhesive Coating | 0.500" (12.70mm) | 1.060" (26.92mm) | 1.618" (41.10mm) | Polyolefin (PO), Semi-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, 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) | 2.440" (61.98mm) | 4.000" (101.60mm) | Boot - 90° | |
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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 | 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 | - | 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 | Adhesive Coating, Flame Retardant, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 0.591" (15.01mm) | Polyolefin (PO), Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.670" (17.02mm) | 1.850" (46.99mm) | 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 | 32 | 0.500" (12.70mm) | 1.060" (26.92mm) | 0.882" (22.40mm) | 5.752" (146.10mm) | Boot | |
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Black | - | 0.260" (6.60mm) | 0.520" (13.21mm) | 1.000" (25.40mm) | Elastomer, Semi-Rigid, Irradiated | 11 | 0.140" (3.56mm) | 0.260" (6.60mm) | 0.820" (20.83mm) | 1.820" (46.23mm) | Boot, Transition - Breakout, 3:1 | |
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Black | - | 0.260" (6.60mm) | 0.520" (13.21mm) | 0.820" (20.83mm) | Elastomer, Fluid Resistant | 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 | - | 1.500" (38.10mm) | 3.299" (83.79mm) | - | Polyolefin (PO), Semi-Rigid | 94 | - | - | - | 4.500" (114.30mm) | Cap | |
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Black | - | 1.382" (35.10mm) | 2.039" (51.79mm) | 2.079" (52.81mm) | Polyolefin (PO), Semi-Rigid | 74 | 0.618" (15.70mm) | 2.039" (51.79mm) | 2.118" (53.80mm) | - | Boot - 90° | |
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Black | - | 1.382" (35.10mm) | 2.039" (51.79mm) | 2.079" (52.81mm) | Polyolefin (PO), Flexible | 74 | 0.618" (15.70mm) | 2.039" (51.79mm) | 2.118" (53.80mm) | - | Boot - 90° | |
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Black | - | 0.690" (17.53mm) | 1.500" (38.10mm) | - | Polyolefin (PO), Flexible | 32 | 0.500" (12.70mm) | 1.500" (38.10mm) | 0.880" (22.35mm) | 5.750" (146.05mm) | Boot | |
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Black | - | 0.882" (22.40mm) | 1.420" (36.07mm) | 1.496" (38.00mm) | Polyolefin (PO), Semi-Rigid | 52 | 0.331" (8.41mm) | 1.420" (36.07mm) | 0.984" (24.99mm) | 1.810" (45.97mm) | Boot - 90° | |
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Black | - | 0.700" (17.78mm) | 0.940" (23.88mm) | 1.300" (33.02mm) | Elastomer, Fluid Resistant | 42 | 0.220" (5.59mm) | 0.460" (11.68mm) | 0.370" (9.40mm) | - | Boot - 90° | |
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Black | - | 1.690" (42.93mm) | 2.469" (62.71mm) | 1.311" (33.30mm) | EPB | 85 | 0.690" (17.53mm) | 1.858" (47.19mm) | 6.618" (168.10mm) | 8.949" (227.30mm) | Boot - 90° | |
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Black | - | 0.410" (10.41mm) | 0.920" (23.37mm) | 0.890" (22.61mm) | Polyolefin (PO), Flexible | 21 | 0.220" (5.59mm) | 0.920" (23.37mm) | 0.580" (14.73mm) | - | Boot - 90° | |
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Black | - | 0.800" (20.32mm) | 0.800" (20.32mm) | - | Polyolefin (PO), Semi-Flexible | 11 | 0.161" (4.09mm) | 0.311" (7.90mm) | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Strain Resistant | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.161" (29.49mm) | Elastomer, 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 | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.512" (13.00mm) | 0.760" (19.30mm) | 0.642" (16.31mm) | Elastomer, Semi-Rigid, Irradiated | 21 | 0.083" (2.11mm) | 0.250" (6.35mm) | 0.512" (13.00mm) | 1.380" (35.05mm) | Boot - 90° | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | - | - | - | Elastomer, Semi-Rigid, Irradiated | 21 | - | - | - | - | Boot - 90° |
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