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), 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 | - | 0.472" (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 | - | 1.380" (35.05mm) | 2.040" (51.82mm) | 2.539" (64.49mm) | Polyolefin (PO), Semi-Rigid | - | 0.620" (15.75mm) | 2.039" (51.79mm) | 1.559" (39.60mm) | 5.130" (130.30mm) | Boot | |
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- | - | 1.661" (42.19mm) | 1.150" (29.21mm) | 0.791" (20.10mm) | Polyolefin (PO), Semi-Rigid | - | 0.252" (6.40mm) | 1.150" (29.21mm) | - | - | Boot, Rectangular - Right Angle, 90° | |
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- | - | 0.488" (12.40mm) | 1.059" (26.90mm) | 2.120" (53.85mm) | Zerohal™ | - | 0.118" (3.00mm) | 0.260" (6.60mm) | 1.071" (27.20mm) | - | Boot, Transition - Side Breakout, 90° | |
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Black | Adhesive Coating | 0.272" (6.91mm) | 0.520" (13.21mm) | 0.902" (22.91mm) | Polyolefin (PO), Semi-Flexible | 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 | - | 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 | - | 0.520" (13.21mm) | 1.070" (27.18mm) | 0.780" (19.81mm) | Polyolefin (PO), Flexible | 21 | 0.300" (7.62mm) | 0.820" (20.83mm) | 3.900" (99.06mm) | 4.880" (123.95mm) | Boot - 90° | |
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Black | - | 0.510" (12.95mm) | 0.760" (19.30mm) | 0.700" (17.78mm) | Polyolefin (PO), Semi-Rigid | 21 | 0.080" (2.03mm) | 0.250" (6.35mm) | 1.490" (37.85mm) | 2.380" (60.45mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 1.343" (34.11mm) | 1.717" (43.61mm) | 0.780" (19.81mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 63 | 0.480" (12.19mm) | 1.717" (43.61mm) | 2.921" (74.19mm) | 4.500" (114.30mm) | Boot | |
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Black | - | 0.500" (12.70mm) | 1.060" (26.92mm) | 2.118" (53.80mm) | Polyolefin (PO), Semi-Flexible | 34 | 0.230" (5.84mm) | 0.520" (13.21mm) | 1.520" (38.61mm) | 4.240" (107.70mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 1.110" (28.19mm) | 1.490" (37.85mm) | 1.930" (49.02mm) | Polyolefin (PO), Semi-Rigid | 64 | 0.360" (9.14mm) | 0.750" (19.05mm) | 0.650" (16.51mm) | - | Boot - 90° | |
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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) | 0.780" (19.81mm) | Elastomer, Semi-Rigid, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 2.118" (53.80mm) | 3.098" (78.69mm) | Boot - 90° | |
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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), 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, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 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) | 5.150" (130.81mm) | 6.280" (159.51mm) | Boot | |
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Black | - | 1.750" (44.45mm) | 2.600" (66.04mm) | 3.310" (84.07mm) | Polyolefin (PO), Flexible | 85 | 0.800" (20.32mm) | 2.600" (66.04mm) | - | 6.500" (165.10mm) | Boot | |
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Black | Adhesive, 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 | - | 0.800" (20.32mm) | 0.800" (20.32mm) | - | Polyolefin (PO), Semi-Rigid | 61 | 0.150" (3.81mm) | 0.311" (7.90mm) | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | - | 2.280" (57.91mm) | 2.280" (57.91mm) | - | Polyolefin (PO), Semi-Rigid | 52 | 0.421" (10.69mm) | 0.752" (19.10mm) | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | - | 0.510" (12.95mm) | 1.340" (34.04mm) | 1.250" (31.75mm) | Polyolefin (PO), Flexible | 13 | 0.790" (20.07mm) | 1.340" (34.04mm) | - | 5.000" (127.00mm) | Boot - 90° | |
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Black | Adhesive Coating, Eyelet and Clip, 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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Black | - | 1.000" (25.40mm) | 1.620" (41.15mm) | - | Polyolefin (PO), Flexible | 43 | 0.400" (10.16mm) | 1.620" (41.15mm) | - | 6.380" (162.05mm) | Boot | |
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Black | Adhesive Coating, Fluid Resistant, Lip | 1.110" (28.19mm) | 1.690" (42.93mm) | 1.610" (40.89mm) | Elastomer, Semi-Rigid | 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, Fluid Resistant, Lip, Potting (Injection) Port | 1.110" (28.19mm) | 1.690" (42.93mm) | 2.402" (61.01mm) | Elastomer, Semi-Rigid | 63 | 0.390" (9.91mm) | 1.690" (42.93mm) | 1.180" (29.97mm) | 3.898" (99.01mm) | Boot | |
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Black | - | 0.490" (12.45mm) | 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 | Adhesive Coating, Flame Resistant | 2.130" (54.10mm) | 2.370" (60.20mm) | 1.500" (38.10mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.370" (9.40mm) | - | 0.850" (21.59mm) | 2.650" (67.31mm) | Boot, Rectangular | |
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Black | - | 1.750" (44.45mm) | 2.600" (66.04mm) | 3.310" (84.07mm) | Polyolefin (PO), Semi-Rigid | 85 | 0.800" (20.32mm) | 2.600" (66.04mm) | - | 6.500" (165.10mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.622" (41.20mm) | 1.970" (50.04mm) | 0.819" (20.80mm) | Polyolefin (PO), Flexible, Irradiated | 74 | 0.559" (14.20mm) | 1.970" (50.04mm) | 6.209" (157.71mm) | 8.000" (203.20mm) | Boot | |
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Black | - | 0.382" (9.70mm) | 0.760" (19.30mm) | 1.421" (36.09mm) | Polyolefin (PO), Semi-Rigid | 22 | 0.209" (5.31mm) | 0.370" (9.40mm) | 1.260" (32.00mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | Eyelet and Clip, Fluid Resistant, Lip | 1.382" (35.10mm) | 2.362" (59.99mm) | 2.830" (71.88mm) | Elastomer, Semi-Rigid | 74 | 0.618" (15.70mm) | 2.362" (59.99mm) | 1.970" (50.04mm) | 5.120" (130.05mm) | Boot | |
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Black | Flame Retardant, Lip | 1.382" (35.10mm) | 2.362" (59.99mm) | 2.830" (71.88mm) | Polyolefin (PO), Flexible | 74 | 0.618" (15.70mm) | 2.362" (59.99mm) | 1.970" (50.04mm) | 5.120" (130.05mm) | Boot | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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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 | - | 1.220" (30.99mm) | 1.220" (30.99mm) | 4.440" (112.78mm) | EPB, Flexible | 32 | 0.350" (8.89mm) | 0.960" (24.38mm) | 0.480" (12.19mm) | 5.460" (138.68mm) | Boot | |
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- | - | 0.350" (8.89mm) | 0.697" (17.70mm) | 0.929" (23.60mm) | Zerohal™ | 12 | 0.201" (5.11mm) | 0.398" (10.11mm) | 0.929" (23.60mm) | 1.870" (47.50mm) | Boot, Transition - Side Breakout, 90° | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 0.870" (22.10mm) | 0.360" (9.14mm) | 0.400" (10.16mm) | Elastomer, Fluid Resistant | 53 | 0.330" (8.38mm) | 0.360" (9.14mm) | 0.300" (7.62mm) | - | Boot - 45° | |
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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 | - | 1.079" (27.41mm) | 1.728" (43.89mm) | 1.728" (43.89mm) | Polyolefin (PO), Flexible | 63 | 0.370" (9.40mm) | 1.728" (43.89mm) | 1.340" (34.04mm) | - | Boot - 90° | |
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Black | Adhesive Coating, Fluid Resistant | 1.079" (27.41mm) | 1.728" (43.89mm) | 1.728" (43.89mm) | Elastomer, Semi-Rigid | 63 | 0.370" (9.40mm) | 1.728" (43.89mm) | 1.340" (34.04mm) | - | Boot - 90° | |
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Black | - | 0.539" (13.69mm) | 1.060" (26.92mm) | 2.752" (69.90mm) | Polyolefin (PO), Semi-Rigid | 34 | 0.240" (6.10mm) | 0.520" (13.21mm) | 2.110" (53.59mm) | 5.701" (144.81mm) | Boot, Transition - Side Breakout, 45° | |
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Black | - | 0.539" (13.69mm) | 1.060" (26.92mm) | 2.752" (69.90mm) | Polyolefin (PO), Flexible | 34 | 0.240" (6.10mm) | 0.520" (13.21mm) | 2.110" (53.59mm) | 5.701" (144.81mm) | Boot, Transition - Side Breakout, 45° | |
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Black | Adhesive Coating | 0.791" (20.10mm) | 2.370" (60.20mm) | 3.728" (94.69mm) | Polyolefin (PO), Flexible | 3 | 0.791" (20.10mm) | 1.579" (40.11mm) | 3.728" (94.69mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.710" (18.03mm) | 0.940" (23.88mm) | - | Polyolefin (PO), Semi-Rigid | 42 | 0.220" (5.59mm) | 0.460" (11.68mm) | 0.160" (4.06mm) | 1.380" (35.05mm) | Boot | |
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Black | - | 0.610" (15.49mm) | 0.800" (20.32mm) | 0.590" (14.99mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.100" (2.54mm) | 0.300" (7.62mm) | 0.600" (15.24mm) | 1.840" (46.74mm) | Boot | |
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Black | - | 0.291" (7.39mm) | 0.520" (13.21mm) | 1.300" (33.02mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.150" (3.81mm) | 0.260" (6.60mm) | 0.760" (19.30mm) | 2.201" (55.91mm) | Boot, Transition - Side Breakout, 90° | |
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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) | 2.118" (53.80mm) | 5.130" (130.30mm) | Boot | |
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Black | - | 1.272" (32.31mm) | 1.780" (45.21mm) | 1.079" (27.41mm) | EPB | 63 | 0.500" (12.70mm) | 1.512" (38.40mm) | 6.661" (169.19mm) | 8.409" (213.59mm) | Boot - 90° |
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