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, Heat Resistant, Lip, Strain Resistant | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.480" (12.19mm) | Polyolefin (PO), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 2.358" (59.89mm) | 3.248" (82.50mm) | Boot | |
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Black | - | 0.940" (23.88mm) | 0.940" (23.88mm) | 3.400" (86.36mm) | EPB, Flexible | 11 | 0.260" (6.60mm) | 0.680" (17.27mm) | 0.460" (11.68mm) | 4.170" (105.92mm) | Boot | |
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Black, White | Adhesive Coating, Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.161" (29.49mm) | 1.470" (37.34mm) | 0.551" (14.00mm) | Polyolefin (PO), 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, 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) | 0.551" (14.00mm) | Polyolefin (PO), Flexible, Irradiated | 53 | 0.409" (10.39mm) | 1.470" (37.34mm) | 2.850" (72.39mm) | 4.248" (107.90mm) | Boot | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.480" (12.19mm) | Elastomer, Semi-Rigid, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 0.657" (15.69mm) | 1.547" (39.29mm) | Boot | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.480" (12.19mm) | Elastomer, Semi-Rigid, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 2.358" (59.89mm) | 3.248" (82.50mm) | Boot | |
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Black | Adhesive Coating, Fluid Resistant | 0.472" (11.99mm) | - | - | Elastomer, Semi-Rigid | 13 | 0.157" (3.99mm) | 0.394" (10.01mm) | 0.602" (15.29mm) | 2.440" (61.98mm) | Feed Through | |
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Black | - | 0.880" (22.35mm) | 1.420" (36.07mm) | - | Polyolefin (PO), Flexible | 53 | 0.330" (8.38mm) | 1.420" (36.07mm) | 0.820" (20.83mm) | 2.350" (59.69mm) | Boot | |
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Black | Adhesive Coating | - | - | - | Polyolefin (PO), Flexible | 1 | - | - | - | - | Boot, Transition - Breakout, 2:1 (Y) | |
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- | - | 0.705" (17.90mm) | 1.220" (30.99mm) | 1.378" (35.00mm) | Elastomer | - | 0.276" (7.01mm) | 1.220" (30.99mm) | 2.165" (54.99mm) | - | Boot - 45° | |
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Black | - | 1.100" (27.94mm) | 1.690" (42.93mm) | 0.450" (11.43mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 63 | 0.390" (9.91mm) | 0.980" (24.89mm) | 0.350" (8.89mm) | - | Boot - 45° | |
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- | - | 2.310" (58.67mm) | 1.350" (34.29mm) | 1.120" (28.45mm) | Polyolefin (PO), Flexible | - | 0.420" (10.67mm) | 1.350" (34.29mm) | - | 2.100" (53.34mm) | Boot, Rectangular | |
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- | - | 2.311" (58.70mm) | 1.350" (34.29mm) | 1.118" (28.40mm) | Polyolefin (PO), Flexible | - | 0.339" (8.61mm) | 1.350" (34.29mm) | - | 2.098" (53.29mm) | Boot, Rectangular | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Potting (Injection) Port | 0.142" (3.61mm) | 0.260" (6.60mm) | 0.594" (15.09mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 11 | 0.142" (3.61mm) | 0.260" (6.60mm) | 0.579" (14.71mm) | 1.169" (29.69mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.730" (18.54mm) | 1.220" (30.99mm) | 0.820" (20.83mm) | Polyolefin (PO), Flexible | 32 | 0.350" (8.89mm) | 0.960" (24.38mm) | 4.500" (114.30mm) | 5.760" (146.30mm) | Boot - 90° | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.752" (19.10mm) | 1.030" (26.16mm) | 0.800" (20.32mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 32 | 0.102" (2.59mm) | 0.300" (7.62mm) | 1.770" (44.96mm) | 2.921" (74.19mm) | 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) | 1.030" (26.16mm) | 0.800" (20.32mm) | Elastomer, Semi-Rigid, Irradiated | 32 | 0.102" (2.59mm) | 0.300" (7.62mm) | 1.770" (44.96mm) | 2.921" (74.19mm) | Boot | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.449" (11.40mm) | 0.882" (22.40mm) | 0.559" (14.20mm) | Elastomer, Semi-Rigid, Irradiated | 11 | 0.252" (6.40mm) | 0.882" (22.40mm) | 1.700" (43.18mm) | 2.500" (63.50mm) | Boot - 90° | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Lip, Mechanical Resistant, Strain Resistant | 0.752" (19.10mm) | 1.030" (26.16mm) | 0.800" (20.32mm) | Polyolefin (PO), Semi-Flexible, Halogen Free, Irradiated | 32 | 0.102" (2.59mm) | 0.217" (5.51mm) | 1.770" (44.96mm) | 2.921" (74.19mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Potting (Injection) Port | 1.390" (35.31mm) | 2.039" (51.79mm) | 2.551" (64.80mm) | Polyolefin (PO), Flexible | 74 | 0.630" (16.00mm) | 2.039" (51.79mm) | 2.000" (50.80mm) | 5.130" (130.30mm) | Boot | |
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Black | - | 1.660" (42.16mm) | 1.150" (29.21mm) | 1.000" (25.40mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 32 | 0.320" (8.13mm) | 1.150" (29.21mm) | - | 1.770" (44.96mm) | Boot, Rectangular | |
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Black | - | 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 | 0.449" (11.40mm) | 0.882" (22.40mm) | 0.461" (11.71mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 11 | 0.252" (6.40mm) | 0.882" (22.40mm) | 2.228" (56.59mm) | 3.000" (76.20mm) | Boot | |
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Black | Chemical Resistant | 0.311" (7.90mm) | 0.650" (16.51mm) | 0.559" (14.20mm) | Fluoroelastomer (FKM), Flexible | 11 | 0.150" (3.81mm) | 0.469" (11.91mm) | - | 1.000" (25.40mm) | Boot | |
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Black | - | 0.374" (9.50mm) | 0.512" (13.00mm) | - | Elastomer, Semi-Rigid | 12 | 0.142" (3.61mm), 0.272" (6.91mm) | 0.280" (7.11mm), 0.510" (12.95mm) | - | 1.140" (28.96mm) | Boot, Transition - Side Breakout, 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), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 2.480" (62.99mm) | 3.500" (88.90mm) | Boot | |
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- | - | 0.319" (8.10mm) | 0.799" (20.29mm) | 0.752" (19.10mm) | Zerohal™ | - | 0.130" (3.30mm) | 0.799" (20.29mm) | - | 2.402" (61.01mm) | Boot | |
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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 | - | 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 | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port | 1.024" (26.00mm) | 1.346" (34.19mm) | 0.740" (18.80mm) | Polyolefin (PO), Flexible, Irradiated | 53 | 0.118" (3.00mm) | 0.378" (9.60mm) | 1.429" (36.30mm) | 3.201" (81.31mm) | Boot - 90° | |
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Black | - | 0.420" (10.67mm) | 0.820" (20.83mm) | 1.620" (41.15mm) | Polyolefin (PO), Flexible | 36 | 0.210" (5.33mm) | 0.810" (20.57mm) | 0.650" (16.51mm) | 2.500" (63.50mm) | Boot | |
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Black | - | 0.420" (10.67mm) | 0.820" (20.83mm) | 1.620" (41.15mm) | Polyolefin (PO), Flexible | 36 | 0.210" (5.33mm) | 0.810" (20.57mm) | 0.650" (16.51mm) | 2.500" (63.50mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant | 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 | Adhesive Coating, Fluid Resistant | 1.390" (35.31mm) | 2.039" (51.79mm) | 2.551" (64.80mm) | Elastomer, 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 | - | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.220" (30.99mm) | Elastomer, Fluid Resistant | 42 | 0.280" (7.11mm) | 0.710" (18.03mm) | 0.790" (20.07mm) | 1.540" (39.12mm) | Boot - 90° | |
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Black | - | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.220" (30.99mm) | Elastomer, Fluid Resistant | 42 | 0.280" (7.11mm) | 0.710" (18.03mm) | 0.790" (20.07mm) | 1.540" (39.12mm) | Boot - 90° | |
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Black | - | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.220" (30.99mm) | Elastomer, Fluid Resistant | 42 | 0.280" (7.11mm) | 0.710" (18.03mm) | 0.790" (20.07mm) | 1.540" (39.12mm) | Boot - 90° | |
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Black | - | 1.079" (27.41mm) | 1.728" (43.89mm) | 1.728" (43.89mm) | Polyolefin (PO), Semi-Rigid | 63 | 0.370" (9.40mm) | 1.728" (43.89mm) | 1.340" (34.04mm) | - | Boot - 90° | |
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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 | - | 1.382" (35.10mm) | 2.039" (51.79mm) | 2.539" (64.49mm) | Polyolefin (PO), Flexible | 74 | 0.622" (15.80mm) | 2.039" (51.79mm) | 2.118" (53.80mm) | 5.130" (130.30mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Lip, Mechanical Resistant | 1.024" (26.00mm) | 1.346" (34.19mm) | 0.823" (20.90mm) | Polyolefin (PO), Semi-Flexible, Halogen Free, Irradiated | 53 | 0.122" (3.10mm) | 0.260" (6.60mm) | 2.012" (51.10mm) | 3.319" (84.30mm) | Boot | |
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Black | Flame Resistant | 0.320" (8.13mm) | 0.800" (20.32mm) | 0.750" (19.05mm) | Polyolefin (PO), Semi-Rigid | 21 | 0.130" (3.30mm) | 0.400" (10.16mm) | - | 2.400" (60.96mm) | Boot | |
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Black | - | 1.380" (35.05mm) | 2.040" (51.82mm) | 2.540" (64.52mm) | Elastomer, Fluid Resistant | 74 | 0.620" (15.75mm) | 2.040" (51.82mm) | - | 5.130" (130.30mm) | Boot | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.449" (11.40mm) | 0.882" (22.40mm) | 0.461" (11.71mm) | Elastomer, Semi-Rigid, 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, Heat Resistant, Lip | 0.449" (11.40mm) | 0.882" (22.40mm) | 0.461" (11.71mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 11 | 0.252" (6.40mm) | 0.882" (22.40mm) | 2.228" (56.59mm) | 3.000" (76.20mm) | Boot |
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