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 | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.780" (19.81mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 3.902" (99.11mm) | 4.880" (123.95mm) | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.780" (19.81mm) | Polyolefin (PO), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 3.902" (99.11mm) | 4.880" (123.95mm) | Boot - 90° | |
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- | - | 0.319" (8.10mm) | 0.799" (20.29mm) | 0.752" (19.10mm) | Polyolefin (PO), Semi-Rigid | - | 0.130" (3.30mm) | 0.799" (20.29mm) | - | 2.402" (61.01mm) | Boot | |
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- | - | 0.319" (8.10mm) | 0.799" (20.29mm) | 0.752" (19.10mm) | Polyolefin (PO), Flexible | - | 0.130" (3.30mm) | 0.799" (20.29mm) | - | 2.402" (61.01mm) | Boot | |
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Black | - | 0.230" (5.84mm) | 0.520" (13.21mm) | 1.031" (26.19mm) | Elastomer, Semi-Rigid | 12 | 0.118" (3.00mm) | 0.260" (6.60mm) | 0.760" (19.30mm) | 2.059" (52.30mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.420" (10.67mm) | 0.500" (12.70mm) | 1.620" (41.15mm) | Polyolefin (PO), Flexible | 34 | 0.110" (2.79mm) | 0.440" (11.18mm) | 0.620" (15.75mm) | 2.500" (63.50mm) | Boot | |
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Black | - | 1.110" (28.19mm) | 1.531" (38.89mm) | 0.961" (24.41mm) | Polyolefin (PO), Flexible | 53 | 0.430" (10.92mm) | 1.240" (31.50mm) | 5.661" (143.79mm) | 7.291" (185.19mm) | Boot - 90° | |
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Black | - | 0.560" (14.22mm) | 1.120" (28.45mm) | 1.090" (27.69mm) | Polyolefin (PO), Flexible | 32 | 0.260" (6.60mm) | 1.120" (28.45mm) | - | 2.160" (54.86mm) | Boot | |
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Black | Adhesive Coating | 0.862" (21.89mm) | 1.420" (36.07mm) | 1.630" (41.40mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 53 | 0.339" (8.61mm) | 1.031" (26.19mm) | 0.870" (22.10mm) | 2.902" (73.71mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.610" (15.49mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 4.441" (112.80mm) | 5.461" (138.71mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.610" (15.49mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 4.441" (112.80mm) | 5.461" (138.71mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.610" (15.49mm) | Polyolefin (PO), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 4.441" (112.80mm) | 5.461" (138.71mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.610" (15.49mm) | Polyolefin (PO), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 4.441" (112.80mm) | 5.461" (138.71mm) | Boot | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.610" (15.49mm) | Elastomer, Semi-Rigid, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 4.441" (112.80mm) | 5.461" (138.71mm) | Boot | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.610" (15.49mm) | Elastomer, Semi-Rigid, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 4.441" (112.80mm) | 5.461" (138.71mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.610" (15.49mm) | Polyolefin (PO), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 4.441" (112.80mm) | 5.461" (138.71mm) | Boot | |
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Black, Red | Adhesive Coating, Drain Holes, 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) | 3.882" (98.60mm) | 4.772" (121.21mm) | Boot | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 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) | - | 2.500" (63.50mm) | Boot | |
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Black, White | Adhesive Coating, Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.480" (12.19mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 3.882" (98.60mm) | 4.772" (121.21mm) | Boot | |
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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) | - | 2.000" (50.80mm) | Boot | |
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Black, Red | Adhesive Coating, Drain Holes, 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) | 3.882" (98.60mm) | 4.772" (121.21mm) | Boot | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 0.860" (21.84mm) | 1.180" (29.97mm) | 1.360" (34.54mm) | Polyolefin (PO), Flexible | 53 | 0.340" (8.64mm) | 0.710" (18.03mm) | 0.870" (22.10mm) | 2.900" (73.66mm) | Boot | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.902" (22.91mm) | Polyolefin (PO), Semi-Flexible | 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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- | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 0.880" (22.35mm) | 1.420" (36.07mm) | 1.500" (38.10mm) | Polyolefin (PO), Flexible | 52 | 0.330" (8.38mm) | 0.830" (21.08mm) | 0.980" (24.89mm) | 1.810" (45.97mm) | Boot - 90° | |
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Black | - | 0.543" (13.79mm) | 0.984" (24.99mm) | 0.512" (13.00mm) | Elastomer | - | 0.512" (13.00mm) | 0.315" (8.00mm) | 0.630" (16.00mm) | 1.575" (40.01mm) | Boot | |
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Black | - | 1.110" (28.19mm) | 1.680" (42.67mm) | 2.220" (56.39mm) | Polyolefin (PO), Semi-Rigid | - | 0.390" (9.91mm) | 1.681" (42.70mm) | 0.969" (24.60mm) | 4.079" (103.61mm) | 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) | 0.728" (18.49mm) | Elastomer, Semi-Rigid, Irradiated | 11 | 0.252" (6.40mm) | 0.882" (22.40mm) | 2.059" (52.30mm) | 2.752" (69.90mm) | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 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) | 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 | 1.161" (29.49mm) | 1.470" (37.34mm) | 0.551" (14.00mm) | Elastomer, Semi-Rigid, Irradiated | 53 | 0.409" (10.39mm) | 1.470" (37.34mm) | 1.000" (25.40mm) | 2.240" (56.90mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port | 1.024" (26.00mm) | 1.346" (34.19mm) | 0.823" (20.90mm) | Polyolefin (PO), Flexible, Irradiated | 53 | 0.122" (3.10mm) | 0.378" (9.60mm) | 2.012" (51.10mm) | 3.319" (84.30mm) | Boot | |
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Black | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.880" (22.35mm) | Elastomer, Fluid Resistant | 12 | 0.130" (3.30mm) | 0.260" (6.60mm) | 0.760" (19.30mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.460" (11.68mm) | 0.880" (22.35mm) | - | EPB, Flexible | 21 | 0.320" (8.13mm) | 0.700" (17.78mm) | 0.780" (19.81mm) | 5.250" (133.35mm) | Boot | |
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Black | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.880" (22.35mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.130" (3.30mm) | 0.260" (6.60mm) | 0.760" (19.30mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.880" (22.35mm) | Polyolefin (PO), Flexible | 12 | 0.130" (3.30mm) | 0.260" (6.60mm) | 0.760" (19.30mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.882" (22.40mm) | Polyolefin (PO), Flexible | 12 | 0.130" (3.30mm) | 0.260" (6.60mm) | 0.760" (19.30mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.024" (26.00mm) | 1.346" (34.19mm) | 0.740" (18.80mm) | Polyolefin (PO), Semi-Rigid, 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 | Adhesive Coating | 0.701" (17.81mm) | 1.220" (30.99mm) | 1.402" (35.61mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 42 | 0.291" (7.39mm) | 1.000" (25.40mm) | 0.870" (22.10mm) | 2.630" (66.80mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Lip, Mechanical 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 | Flame Retardant, Fluid Resistant, Lip, Mechanical Resistant | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.591" (15.01mm) | Polyolefin (PO), Semi-Flexible, Halogen Free, Irradiated | 21 | 0.291" (7.39mm) | 0.630" (16.00mm) | 3.882" (98.60mm) | 4.772" (121.21mm) | Boot | |
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Black | Fluid Resistant, Lip | 1.110" (28.19mm) | 1.690" (42.93mm) | 2.402" (61.01mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 63 | 0.390" (9.91mm) | 0.984" (24.99mm) | 1.180" (29.97mm) | 3.898" (99.01mm) | Boot | |
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Black | - | 0.858" (21.79mm) | 1.421" (36.09mm) | 1.382" (35.10mm) | Polyolefin (PO), Semi-Flexible | 52 | 0.331" (8.41mm) | 1.040" (26.42mm) | 1.181" (30.00mm) | - | Boot - 90° | |
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Black | Fluid Resistant, 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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Black | Flame Retardant, Potting (Injection) Port | 0.862" (21.89mm) | 1.420" (36.07mm) | 1.630" (41.40mm) | Polyolefin (PO), Semi-Rigid | 53 | 0.339" (8.61mm) | 1.420" (36.07mm) | 0.870" (22.10mm) | 2.902" (73.71mm) | Boot | |
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Black | - | 0.900" (22.86mm) | 2.000" (50.80mm) | 4.000" (101.60mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 83 | - | - | - | - | Cap | |
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Black | Adhesive Coating, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 0.591" (15.01mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.670" (17.02mm) | 1.850" (46.99mm) | Boot | |
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Black | - | 0.700" (17.78mm) | 1.220" (30.99mm) | 1.220" (30.99mm) | Polyolefin (PO), Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.500" (12.70mm) | - | Boot - 90° | |
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Black | - | 1.110" (28.19mm) | 1.681" (42.70mm) | 2.220" (56.39mm) | Polyolefin (PO), Semi-Rigid | 63 | 0.390" (9.91mm) | 1.681" (42.70mm) | 1.445" (36.70mm) | 4.079" (103.61mm) | Boot |
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