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 | - | 0.700" (17.78mm) | 1.220" (30.99mm) | 1.220" (30.99mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 42 | 0.280" (7.11mm) | 0.710" (18.03mm) | 0.980" (24.89mm) | - | Boot - 90° | |
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Black | Adhesive Coating, Lip | 1.110" (28.19mm) | 1.690" (42.93mm) | 1.610" (40.89mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 63 | 0.390" (9.91mm) | 1.690" (42.93mm) | 0.830" (21.08mm) | 3.110" (78.99mm) | Boot | |
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Black | Adhesive Coating, Lip | 1.110" (28.19mm) | 1.690" (42.93mm) | 0.830" (21.08mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 63 | 0.390" (9.91mm) | 0.984" (24.99mm) | 0.830" (21.08mm) | 2.323" (59.00mm) | Boot | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.752" (19.10mm) | 1.020" (25.91mm) | 0.472" (11.99mm) | Elastomer, Semi-Rigid, Irradiated | 32 | 0.102" (2.59mm) | 0.310" (7.87mm) | 0.790" (20.07mm) | 1.930" (49.02mm) | Boot | |
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Black | - | 0.860" (21.84mm) | 1.420" (36.07mm) | 1.380" (35.05mm) | Polyolefin (PO), Semi-Rigid | 52 | 1.040" (26.42mm) | 1.420" (36.07mm) | 0.500" (12.70mm) | - | Boot - 90° | |
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Black | - | 1.272" (32.31mm) | 1.780" (45.21mm) | 1.079" (27.41mm) | Polyolefin (PO), Flexible | 63 | 0.500" (12.70mm) | 1.512" (38.40mm) | 6.661" (169.19mm) | 8.409" (213.59mm) | Boot - 90° | |
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Black | Adhesive Coating, Lip, Potting (Injection) Port | 0.882" (22.40mm) | 1.420" (36.07mm) | 1.654" (42.01mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 53 | 0.331" (8.41mm) | 0.830" (21.08mm) | 1.180" (29.97mm) | 3.150" (80.01mm) | Boot | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Strain Resistant | 0.402" (10.21mm) | 0.790" (20.07mm) | 1.770" (44.96mm) | Elastomer, Semi-Rigid, Irradiated | 28 | 0.402" (10.21mm) | 0.790" (20.07mm) | 1.770" (44.96mm) | 3.540" (89.92mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Lip, Mechanical Resistant, Strain Resistant | 0.449" (11.40mm) | 0.882" (22.40mm) | 0.559" (14.20mm) | Polyolefin (PO), Semi-Flexible, Halogen Free, Irradiated | 11 | 0.252" (6.40mm) | 0.551" (14.00mm) | 3.402" (86.41mm) | 4.169" (105.89mm) | Boot | |
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Black | - | 1.110" (28.19mm) | 1.690" (42.93mm) | 1.770" (44.96mm) | Elastomer, Fluid Resistant | 63 | 0.390" (9.91mm) | 1.690" (42.93mm) | 0.690" (17.53mm) | 2.170" (55.12mm) | Boot - 90° | |
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Black | - | 1.110" (28.19mm) | 1.690" (42.93mm) | 1.770" (44.96mm) | Polyolefin (PO), Semi-Rigid | 63 | 0.390" (9.91mm) | 0.980" (24.89mm) | 1.180" (29.97mm) | 2.170" (55.12mm) | Boot - 90° | |
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Black | - | 1.110" (28.19mm) | 1.690" (42.93mm) | 1.770" (44.96mm) | Elastomer, Fluid Resistant | 63 | 0.390" (9.91mm) | 0.980" (24.89mm) | 1.180" (29.97mm) | 2.170" (55.12mm) | Boot - 90° | |
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Black | - | 1.110" (28.19mm) | 1.690" (42.93mm) | 1.770" (44.96mm) | Elastomer, Fluid Resistant | 63 | 0.390" (9.91mm) | 0.980" (24.89mm) | 1.180" (29.97mm) | 2.170" (55.12mm) | Boot - 90° | |
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Black | - | 1.110" (28.19mm) | 1.690" (42.93mm) | 0.450" (11.43mm) | Elastomer, Fluid Resistant | 63 | 0.390" (9.91mm) | 1.690" (42.93mm) | 0.690" (17.53mm) | 2.170" (55.12mm) | Boot - 90° | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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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 | - | 0.880" (22.35mm) | 1.740" (44.20mm) | - | EPB, Flexible | 42 | 0.690" (17.53mm) | 1.440" (36.58mm) | 1.000" (25.40mm) | 6.250" (158.75mm) | Boot | |
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Black | - | 0.880" (22.35mm) | 1.740" (44.20mm) | - | EPB, Flexible | 42 | 0.690" (17.53mm) | 1.440" (36.58mm) | 1.000" (25.40mm) | 6.250" (158.75mm) | Boot | |
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Black | Adhesive Coating, Lip | 0.409" (10.39mm) | 0.941" (23.90mm) | 0.350" (8.89mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 21 | 0.220" (5.59mm) | 0.941" (23.90mm) | 0.335" (8.51mm) | 1.020" (25.91mm) | Boot | |
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- | - | 0.701" (17.81mm) | 0.945" (24.00mm) | 0.394" (10.00mm) | Polyolefin (PO), Semi-Rigid | - | 0.220" (5.59mm) | 0.945" (24.00mm) | - | - | Boot - 45° | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.480" (12.19mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 0.630" (16.00mm) | 1.650" (41.91mm) | Boot | |
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Black | Fluid Resistant, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.380" (35.05mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 42 | 0.280" (7.11mm) | 0.710" (18.03mm) | 0.984" (24.99mm) | 2.640" (67.06mm) | Boot | |
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- | - | 2.280" (57.91mm) | 1.480" (37.59mm) | 2.488" (63.20mm) | Polyolefin (PO), Semi-Rigid | - | 0.358" (9.09mm) | 1.480" (37.59mm) | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | Flame Retardant, Potting (Injection) Port | 1.390" (35.31mm) | 2.039" (51.79mm) | 2.551" (64.80mm) | Polyolefin (PO), Semi-Rigid | 74 | 0.630" (16.00mm) | 2.039" (51.79mm) | 2.000" (50.80mm) | 5.130" (130.30mm) | Boot | |
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Black, Red | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.902" (22.91mm) | 1.340" (34.04mm) | 0.480" (12.19mm) | Polyolefin (PO), Flexible, Irradiated | 42 | 0.382" (9.70mm) | 1.340" (34.04mm) | 5.150" (130.81mm) | 6.280" (159.51mm) | 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) | 0.670" (17.02mm) | 1.800" (45.72mm) | Boot | |
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Black | - | 0.700" (17.78mm) | 1.220" (30.99mm) | 0.320" (8.13mm) | Polyolefin (PO), Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 1.050" (26.67mm) | - | Boot - 45° | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Strain | 0.902" (22.91mm) | 1.000" (25.40mm) | 0.500" (12.70mm) | Elastomer, Semi-Rigid, Irradiated | 42 | 0.382" (9.70mm) | 0.571" (14.50mm) | - | 1.210" (30.73mm) | Boot | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Strain | 0.902" (22.91mm) | 1.340" (34.04mm) | 0.618" (15.70mm) | Elastomer, Semi-Rigid, Irradiated | 42 | 0.382" (9.70mm) | 1.340" (34.04mm) | 5.150" (130.81mm) | 6.280" (159.51mm) | Boot | |
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Black | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.902" (22.91mm) | 1.340" (34.04mm) | 0.469" (11.91mm) | Polyolefin (PO), Flexible, Irradiated | 42 | 0.382" (9.70mm) | 1.340" (34.04mm) | 5.150" (130.81mm) | 6.280" (159.51mm) | Boot | |
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Black | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.902" (22.91mm) | 1.340" (34.04mm) | 0.469" (11.91mm) | Polyolefin (PO), Flexible, Irradiated | 42 | 0.382" (9.70mm) | 1.340" (34.04mm) | 5.150" (130.81mm) | 6.280" (159.51mm) | Boot | |
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Black, White | Drain Holes, 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) | 5.150" (130.81mm) | 6.280" (159.51mm) | Boot | |
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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), Flexible, Irradiated | 42 | 0.382" (9.70mm) | 1.340" (34.04mm) | 2.870" (72.90mm) | 4.000" (101.60mm) | Boot | |
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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), Flexible, Irradiated | 42 | 0.382" (9.70mm) | 1.340" (34.04mm) | 2.870" (72.90mm) | 4.000" (101.60mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 0.902" (22.91mm) | 1.340" (34.04mm) | 0.618" (15.70mm) | Polyolefin (PO), Flexible, Irradiated | 42 | 0.382" (9.70mm) | 1.340" (34.04mm) | - | 4.000" (101.60mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 0.902" (22.91mm) | 1.340" (34.04mm) | 0.618" (15.70mm) | Polyolefin (PO), Flexible, Irradiated | 42 | 0.382" (9.70mm) | 1.340" (34.04mm) | - | 4.000" (101.60mm) | Boot | |
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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), Flexible, Irradiated | 42 | 0.382" (9.70mm) | 1.340" (34.04mm) | - | 3.000" (76.20mm) | 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), 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 | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.752" (19.10mm) | 1.030" (26.16mm) | 0.710" (18.03mm) | Elastomer, 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 | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.752" (19.10mm) | 1.030" (26.16mm) | 0.710" (18.03mm) | Elastomer, 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 | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | - | - | - | Elastomer, Semi-Rigid, Irradiated | 42 | - | - | - | - | Boot | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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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 | |
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Black | Adhesive Coating, Fluid Resistant | 2.280" (57.91mm) | 2.320" (58.93mm) | 1.252" (31.80mm) | Elastomer, Semi-Rigid | 52 | 0.421" (10.69mm) | 0.752" (19.10mm) | - | 2.402" (61.01mm) | Boot, Rectangular | |
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Black | - | 0.882" (22.40mm) | 1.882" (47.80mm) | - | Polyolefin (PO), Flexible | 42 | 0.690" (17.53mm) | 1.882" (47.80mm) | 1.000" (25.40mm) | 6.252" (158.80mm) | Boot | |
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Black | - | 0.880" (22.35mm) | 1.880" (47.75mm) | - | Polyolefin (PO), Flexible | 42 | 0.690" (17.53mm) | 1.880" (47.75mm) | 1.000" (25.40mm) | 6.250" (158.75mm) | Boot | |
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- | - | 0.870" (22.10mm) | 1.417" (35.99mm) | 1.575" (40.01mm) | Elastomer | - | 0.331" (8.41mm) | 1.417" (35.99mm) | 2.362" (60.00mm) | - | Boot - 45° | |
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Black | - | 1.110" (28.19mm) | 1.531" (38.89mm) | 0.551" (14.00mm) | Polyolefin (PO), Flexible | - | 0.551" (14.00mm) | 1.240" (31.50mm) | 1.098" (27.89mm) | 2.500" (63.50mm) | Boot | |
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Black | - | 1.098" (27.89mm) | 2.161" (54.89mm) | - | Polyolefin (PO), Flexible | 53 | 0.882" (22.40mm) | 2.161" (54.89mm) | 1.118" (28.40mm) | 6.752" (171.50mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Strain Resistant | 0.449" (11.40mm) | 0.882" (22.40mm) | 0.559" (14.20mm) | Polyolefin (PO), Flexible, Irradiated | 11 | 0.252" (6.40mm) | 0.882" (22.40mm) | 3.402" (86.41mm) | 4.169" (105.89mm) | Boot |
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