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 | Total Length Supplied | Type | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 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 | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.819" (20.80mm) | Elastomer, Semi-Rigid, 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 | Flame Retardant, Fluid Resistant, Heat Resistant | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.161" (29.49mm) | Polyolefin (PO), 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 | - | 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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Black | Fluid Resistant, Lip | 1.110" (28.19mm) | 1.690" (42.93mm) | 0.830" (21.08mm) | Elastomer, Semi-Rigid | 63 | 0.390" (9.91mm) | 1.690" (42.93mm) | 0.830" (21.08mm) | 2.323" (59.00mm) | - | Boot | |
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Black | Flame Retardant, Lip | 0.520" (13.21mm) | 1.071" (27.20mm) | 0.480" (12.19mm) | EPB, Flexible | 21 | 0.300" (7.62mm) | 0.819" (20.80mm) | 3.882" (98.60mm) | 4.772" (121.21mm) | - | Boot | |
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Black | Adhesive Coating, Fluid Resistant | 0.500" (12.70mm) | 1.060" (26.92mm) | 1.618" (41.10mm) | Elastomer, Semi-Rigid | 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 | - | 0.272" (6.91mm) | 0.520" (13.21mm) | 0.902" (22.91mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.142" (3.61mm) | 0.260" (6.60mm) | 0.921" (23.39mm) | 1.941" (49.30mm) | - | Boot, Transition - Side Breakout, 45° | |
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Black | - | 1.420" (36.07mm) | 1.420" (36.07mm) | 1.630" (41.40mm) | Polyolefin (PO), Flexible | 53 | 0.331" (8.41mm) | 1.420" (36.07mm) | - | 3.150" (80.01mm) | - | Boot | |
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Black | Fluid Resistant, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.220" (30.99mm) | Elastomer, Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.591" (15.01mm) | 1.540" (39.12mm) | - | Boot - 90° | |
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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 | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Strain Resistant | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.161" (29.49mm) | Polyolefin (PO), Flexible, 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 | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.340" (34.04mm) | 1.720" (43.69mm) | 0.780" (19.81mm) | Polyolefin (PO), Flexible, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 6.421" (163.09mm) | 8.000" (203.20mm) | - | Boot | |
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Black | - | 0.520" (13.21mm) | 1.070" (27.18mm) | 0.480" (12.19mm) | VPB, Flexible | 21 | 0.300" (7.62mm) | 0.820" (20.83mm) | 3.880" (98.55mm) | 4.770" (121.16mm) | - | Boot | |
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Black | - | 0.260" (6.60mm) | 0.520" (13.21mm) | 0.819" (20.80mm) | Polyolefin (PO), Flexible | 11 | 0.142" (3.61mm) | 0.260" (6.60mm) | 1.000" (25.40mm) | 1.819" (46.20mm) | - | Boot, Transition - Breakout, 3:1 | |
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Black | - | 0.260" (6.60mm) | 0.520" (13.21mm) | 0.819" (20.80mm) | Polyolefin (PO), Semi-Rigid | 11 | 0.142" (3.61mm) | 0.260" (6.60mm) | 1.000" (25.40mm) | 1.819" (46.20mm) | - | Boot, Transition - Breakout, 3:1 | |
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Black | - | 0.230" (5.84mm) | 0.520" (13.21mm) | 1.031" (26.19mm) | Polyolefin (PO), Flexible | 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 | - | 0.488" (12.40mm) | 1.060" (26.92mm) | 1.500" (38.10mm) | Polyolefin (PO), Flexible | 23 | 0.240" (6.10mm) | 0.520" (13.21mm) | 1.700" (43.18mm) | - | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | Abrasion Resistant, Encapsulant Lined, Flex Resistant, Moisture Resistant, Splash Resistant, Vibration Resistant | 0.023" (0.58mm) | 0.125" (3.18mm) | - | Polyolefin (PO), Semi-Rigid | - | - | - | - | - | 0.870" (22.10mm) | Cap | |
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Black | Abrasion Resistant, Adhesive Coating, Flame Retardant, Fluid Resistant, Moisture Resistant, Strain Resistant | 0.050" (1.27mm) | 0.225" (5.72mm) | - | Polyolefin (PO), Semi-Rigid | - | - | - | - | - | 1.180" (29.97mm) | Cap | |
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Black | Abrasion Resistant, Adhesive Coating, Flame Retardant, Fluid Resistant, Moisture Resistant, Strain Resistant | 0.065" (1.65mm) | 0.293" (7.44mm) | - | Polyolefin (PO), Semi-Rigid | - | - | - | - | - | 1.380" (35.05mm) | Cap | |
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Black | Abrasion Resistant, Encapsulant Lined, Flex Resistant, Moisture Resistant, Splash Resistant, Vibration Resistant | 0.090" (2.29mm) | 0.500" (12.70mm) | - | Polyolefin (PO), Semi-Rigid | - | - | - | - | - | 1.500" (38.10mm) | Cap | |
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Black | Adhesive Coating, Fluid Resistant | 0.311" (7.90mm) | 0.650" (16.51mm) | 0.559" (14.20mm) | Elastomer, Semi-Rigid | 11 | 0.150" (3.81mm) | 0.469" (11.91mm) | - | 1.000" (25.40mm) | - | Boot | |
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Black | Adhesive Coating, Fluid Resistant, Lip | 0.272" (6.91mm) | 0.670" (17.02mm) | 0.941" (23.90mm) | Elastomer, Semi-Rigid | 11 | 0.118" (3.00mm) | 0.670" (17.02mm) | 0.425" (10.80mm) | 1.540" (39.12mm) | - | Boot | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.250" (6.35mm) | 0.394" (10.01mm) | 0.453" (11.51mm) | Elastomer, Semi-Rigid, Irradiated | 1 | 0.080" (2.03mm) | 0.236" (5.99mm) | 0.236" (5.99mm) | 0.492" (12.50mm) | - | Boot - 90° | |
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Black | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.882" (22.40mm) | 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 | - | 0.080" (2.03mm) | 0.200" (5.08mm) | 0.900" (22.86mm) | Polyolefin (PO), Semi-Rigid | 11 | - | - | - | - | - | Cap | |
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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 | Adhesive Coating, Flame Retardant | 0.360" (9.14mm) | 0.900" (22.86mm) | - | Polyolefin (PO), Semi-Rigid | - | 0.120" (3.05mm) | 0.330" (8.38mm) | 0.700" (17.78mm) | 2.700" (68.58mm) | - | Boot, Transition - Breakout, 3:1 | |
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- | - | 0.370" (9.40mm) | 0.800" (20.32mm) | 2.000" (50.80mm) | - | - | 0.118" (3.00mm) | 0.330" (8.38mm) | 0.700" (17.78mm) | - | - | Boot, Transition - Breakout, 2:1 | |
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Black | Abrasion Resistant, Adhesive Coating, Flame Retardant, Fluid Resistant, Moisture Resistant, Strain Resistant | 0.050" (1.27mm) | 0.225" (5.72mm) | - | Polyolefin (PO), Semi-Rigid | - | - | - | - | - | 1.380" (35.05mm) | Cap | |
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Black | Abrasion Resistant, Adhesive Coating, Flame Retardant, Fluid Resistant, Moisture Resistant, Strain Resistant | 0.065" (1.65mm) | 0.293" (7.44mm) | - | Polyolefin (PO), Semi-Rigid | - | - | - | - | - | 1.180" (29.97mm) | Cap | |
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Black | - | 0.362" (9.19mm) | 0.941" (23.90mm) | 0.830" (21.08mm) | Elastomer, Semi-Rigid | 11 | 0.110" (2.79mm) | 0.630" (16.00mm) | 0.394" (10.01mm) | 1.496" (38.00mm) | - | Boot | |
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Black | Abrasion Resistant, Encapsulant Lined, Flex Resistant, Moisture Resistant, Splash Resistant, Vibration Resistant | 0.090" (2.29mm) | 0.375" (9.53mm) | - | Polyolefin (PO), Semi-Rigid | - | - | - | - | - | 1.252" (31.80mm) | Cap | |
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Black | Abrasion Resistant, Adhesive Coating, Flame Retardant, Fluid Resistant, Moisture Resistant, Strain Resistant | 0.095" (2.41mm) | 0.427" (10.85mm) | - | Polyolefin (PO), Semi-Rigid | - | - | - | - | - | 1.575" (40.01mm) | Cap | |
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Black | Abrasion Resistant, Adhesive Coating, Flame Retardant, Fluid Resistant, Moisture Resistant, Strain Resistant | 0.095" (2.41mm) | 0.427" (10.85mm) | - | Polyolefin (PO), Semi-Rigid | - | - | - | - | - | 1.970" (50.04mm) | Cap | |
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Black | - | 0.080" (2.03mm) | 0.201" (5.11mm) | - | Polyolefin (PO), Semi-Rigid | 11 | - | - | - | 0.902" (22.91mm) | - | Cap | |
3M Electronic Solutions
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Black | Adhesive Coating, Flame Retardant | 0.591" (15.00mm) | 1.571" (39.90mm) | - | Polyolefin (PO), Semi-Rigid | - | - | - | - | 3.539" (89.89mm) | - | Cap | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.205" (5.21mm) | 0.430" (10.92mm) | 0.453" (11.51mm) | Elastomer, Semi-Rigid, Irradiated | 1 | 0.063" (1.60mm) | 0.350" (8.89mm) | 0.295" (7.49mm) | 0.512" (13.00mm) | - | Boot - 90° | |
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Black | Fluid Resistant, Lip | 0.272" (6.91mm) | 0.670" (17.02mm) | 0.941" (23.90mm) | Elastomer, Semi-Rigid | 11 | 0.118" (3.00mm) | 0.670" (17.02mm) | 0.425" (10.80mm) | 1.540" (39.12mm) | - | Boot | |
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Black | Adhesive Coating, Fluid Resistant | 0.311" (7.90mm) | 0.650" (16.51mm) | 0.559" (14.20mm) | Elastomer, Semi-Rigid | 11 | 0.150" (3.81mm) | 0.469" (11.91mm) | - | 1.000" (25.40mm) | - | Boot | |
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Black | Fluid Resistant | 0.311" (7.90mm) | 0.670" (17.02mm) | 0.551" (14.00mm) | Elastomer, Semi-Rigid | 11 | 0.090" (2.29mm) | 0.670" (17.02mm) | 0.236" (5.99mm) | 0.984" (24.99mm) | - | Boot | |
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Black | Adhesive Coating, Fluid Resistant | 0.390" (9.91mm) | 0.969" (24.61mm) | 0.858" (21.79mm) | Elastomer, Semi-Rigid | 21 | 0.209" (5.31mm) | 0.969" (24.61mm) | - | 1.500" (38.10mm) | - | Boot | |
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Black | Fluid Resistant, Lip | 0.409" (10.39mm) | 0.941" (23.90mm) | 0.984" (24.99mm) | Elastomer, Semi-Rigid | 21 | 0.220" (5.59mm) | 0.941" (23.90mm) | 0.335" (8.51mm) | 0.984" (24.99mm) | - | Boot - 90° | |
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Black | Fluid Resistant, Lip | 0.409" (10.39mm) | 0.941" (23.90mm) | 0.830" (21.08mm) | Elastomer, Semi-Rigid | 21 | 0.220" (5.59mm) | 0.941" (23.90mm) | 0.335" (8.51mm) | 1.496" (38.00mm) | - | Boot | |
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Black | Adhesive Coating, Fluid Resistant | 0.311" (7.90mm) | 0.701" (17.81mm) | 0.791" (20.10mm) | Elastomer, Semi-Rigid | 11 | 0.150" (3.81mm) | 0.701" (17.81mm) | 0.449" (11.40mm) | - | - | Boot - 90° | |
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Black | - | 0.311" (7.90mm) | 0.701" (17.81mm) | 0.791" (20.10mm) | Elastomer, Semi-Rigid | 11 | 0.150" (3.81mm) | 0.701" (17.81mm) | 0.449" (11.40mm) | - | - | Boot - 90° | |
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Black | Adhesive Coating, Fluid Resistant, Lip | 0.559" (14.20mm) | 1.180" (29.97mm) | 1.260" (32.00mm) | Elastomer, Semi-Rigid | 32 | 0.232" (5.89mm) | 1.180" (29.97mm) | 0.710" (18.03mm) | 2.170" (55.12mm) | - | Boot | |
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Black | - | 0.563" (14.30mm) | 1.118" (28.40mm) | 1.091" (27.71mm) | Polyolefin (PO), Flexible | 32 | 0.260" (6.60mm) | 1.118" (28.40mm) | 0.850" (21.59mm) | 2.161" (54.89mm) | - | Boot |
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