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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TE Connectivity
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Black | - | 1.270" (32.26mm) | 1.780" (45.21mm) | 1.080" (27.43mm) | Polyolefin (PO), Flexible | 63 | 1.500" (38.10mm) | 1.510" (38.35mm) | 6.660" (169.16mm) | 8.410" (213.61mm) | Boot - 90° | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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Black | - | 0.701" (17.81mm) | 1.063" (27.00mm) | 1.063" (27.00mm) | Polyolefin (PO), Semi-Rigid | 22 | 0.220" (5.59mm) | 1.063" (27.00mm) | - | - | Boot | |
3M Electronic Solutions
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Black | Adhesive Coating, Flame Retardant | 0.600" (15.24mm) | 1.200" (30.48mm) | - | Polyolefin (PO), Semi-Rigid | - | 0.170" (4.32mm) | 0.500" (12.70mm) | 1.000" (25.40mm) | 3.500" (88.90mm) | Boot, Transition - Breakout, 2:1 | |
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- | - | 0.701" (17.81mm) | 0.945" (24.00mm) | 0.394" (10.01mm) | Elastomer | - | 0.220" (5.59mm) | 0.472" (11.99mm) | 1.063" (27.00mm) | - | Boot - 45° | |
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TE Connectivity
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.340" (34.04mm) | 1.720" (43.69mm) | 0.780" (19.81mm) | Elastomer, Semi-Rigid, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 6.421" (163.09mm) | 8.000" (203.20mm) | Boot | |
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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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TE Connectivity
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Black | Fluid Resistant | 0.460" (11.68mm) | 0.590" (14.99mm) | 0.590" (14.99mm) | Fluoroelastomer (FKM), Flexible | 32 | 0.170" (4.32mm) | 0.590" (14.99mm) | 0.790" (20.07mm) | 1.970" (50.04mm) | Boot | |
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Black | Fluid Resistant | 0.460" (11.68mm) | 0.590" (14.99mm) | 0.590" (14.99mm) | Fluoroelastomer (FKM), Flexible | 32 | 0.170" (4.32mm) | 0.590" (14.99mm) | 0.790" (20.07mm) | 1.970" (50.04mm) | Boot | |
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Black | - | 1.720" (43.69mm) | 2.340" (59.44mm) | 3.550" (90.17mm) | Polyolefin (PO), Semi-Rigid | 85 | 0.770" (19.56mm) | 1.720" (43.69mm) | 2.150" (54.61mm) | 6.350" (161.29mm) | Boot | |
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TE Connectivity
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Black | Lip | 0.390" (9.91mm) | 0.941" (23.90mm) | 0.461" (11.71mm) | NBCCS, Flexible | 11 | 0.291" (7.39mm) | 0.941" (23.90mm) | 1.728" (43.89mm) | 2.500" (63.50mm) | Boot | |
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Black | - | 0.500" (12.70mm) | 1.060" (26.92mm) | 1.618" (41.10mm) | Polyolefin (PO), 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 | - | 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 | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 2.642" (67.11mm) | 3.220" (81.79mm) | 1.752" (44.50mm) | Polyolefin (PO), Flexible, Irradiated | 99 | 0.902" (22.91mm) | 3.220" (81.79mm) | 5.949" (151.10mm) | 9.331" (237.01mm) | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.343" (34.11mm) | 1.717" (43.61mm) | 0.839" (21.31mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 63 | 0.142" (3.61mm) | 0.449" (11.40mm) | 1.850" (46.99mm) | 4.551" (115.60mm) | Boot - 90° | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.343" (34.11mm) | 1.717" (43.61mm) | 0.839" (21.31mm) | Elastomer, Semi-Rigid, Irradiated | 63 | 0.142" (3.61mm) | 0.449" (11.40mm) | 1.850" (46.99mm) | 4.551" (115.60mm) | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 1.340" (34.04mm) | 1.720" (43.69mm) | 1.079" (27.41mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 6.661" (169.19mm) | 8.409" (213.59mm) | Boot - 90° | |
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TE Connectivity
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Black | - | 0.551" (14.00mm) | 0.839" (21.31mm) | 1.098" (27.89mm) | Elastomer, Semi-Rigid | 13 | 0.209" (5.31mm) | 0.661" (16.79mm) | - | 5.299" (134.59mm) | Boot | |
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Black | Adhesive Coating | 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 | - | 1.170" (29.72mm) | 1.530" (38.86mm) | 0.200" (5.08mm) | Polyolefin (PO), Flexible | 15 | 0.470" (11.94mm) | 1.530" (38.86mm) | 7.350" (186.69mm) | 9.000" (228.60mm) | Boot | |
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Black | - | 0.420" (10.67mm) | 0.500" (12.70mm) | 1.620" (41.15mm) | Elastomer, Fluid Resistant | 34 | 0.110" (2.79mm) | 0.440" (11.18mm) | 0.620" (15.75mm) | 2.500" (63.50mm) | Boot | |
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TE Connectivity
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 1.340" (34.04mm) | 1.720" (43.69mm) | 1.079" (27.41mm) | Polyolefin (PO), Flexible, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 3.000" (76.20mm) | 4.752" (120.70mm) | Boot - 90° | |
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Black | Adhesive Coating | 1.100" (27.94mm) | 2.100" (53.34mm) | 1.500" (38.10mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 56 | 0.700" (17.78mm) | 2.100" (53.34mm) | - | 6.900" (175.26mm) | Boot | |
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TE Connectivity
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Black | - | 0.310" (7.87mm) | 0.420" (10.67mm) | 0.560" (14.22mm) | Fluoroelastomer (FKM), Flexible | 11 | 0.150" (3.81mm) | 0.330" (8.38mm) | - | 1.000" (25.40mm) | Boot | |
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TE Connectivity
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Black | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.340" (34.04mm) | 1.720" (43.69mm) | 1.079" (27.41mm) | Polyolefin (PO), Flexible, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 6.661" (169.19mm) | 8.409" (213.59mm) | Boot - 90° | |
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Black | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.340" (34.04mm) | 1.720" (43.69mm) | 1.079" (27.41mm) | Polyolefin (PO), Flexible, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 6.661" (169.19mm) | 8.409" (213.59mm) | Boot - 90° | |
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TE Connectivity
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Black | - | 0.560" (14.22mm) | 0.750" (19.05mm) | 0.240" (6.10mm) | Fluoroelastomer (FKM), Flexible | 12 | 0.160" (4.06mm) | 0.310" (7.87mm) | - | - | Boot | |
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Black, White | Adhesive Coating, Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 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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TE Connectivity
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Black | - | 1.110" (28.19mm) | 1.680" (42.67mm) | 2.220" (56.39mm) | Elastomer, Fluid Resistant | 63 | 0.390" (9.91mm) | 1.680" (42.67mm) | - | 4.080" (103.63mm) | Boot | |
TE Connectivity
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Black | - | 0.461" (11.71mm) | 0.882" (22.40mm) | - | EPB | 21 | 0.319" (8.10mm) | 0.701" (17.81mm) | 0.780" (19.81mm) | 5.252" (133.40mm) | 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) | 2.850" (72.39mm) | 4.248" (107.90mm) | Boot | |
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Black, Red | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 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) | 5.598" (142.19mm) | 7.000" (177.80mm) | 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) | 0.780" (19.81mm) | Elastomer, 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 | - | 0.488" (12.40mm) | 1.060" (26.92mm) | 1.500" (38.10mm) | Polyolefin (PO), Semi-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 | Flame Retardant, Potting (Injection) Port | 1.720" (43.69mm) | 2.598" (65.99mm) | 3.551" (90.20mm) | Polyolefin (PO), Semi-Rigid | 85 | 0.772" (19.61mm) | 2.598" (65.99mm) | 2.150" (54.61mm) | 6.350" (161.29mm) | Boot | |
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Black | Adhesive Coating, Eyelet and Clip, Lip | 0.559" (14.20mm) | 1.180" (29.97mm) | 1.260" (32.00mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 32 | 0.232" (5.89mm) | 0.591" (15.01mm) | 0.710" (18.03mm) | 2.170" (55.12mm) | Boot | |
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- | - | 0.752" (19.10mm) | 1.000" (25.40mm) | 1.551" (39.40mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | - | 0.331" (8.41mm) | 1.000" (25.40mm) | 1.902" (48.31mm) | 6.000" (152.40mm) | Boot | |
TE Connectivity
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Black | Adhesive Coating | 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 | Adhesive Coating | 0.272" (6.91mm) | 0.520" (13.21mm) | 0.902" (22.91mm) | Polyolefin (PO), 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 | 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 | - | 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 | Adhesive Coating, Fluid Resistant | 2.280" (57.91mm) | 2.280" (57.91mm) | 1.250" (31.75mm) | Elastomer, Semi-Rigid | 52 | 0.420" (10.67mm) | 0.750" (19.05mm) | - | 2.400" (60.96mm) | Boot, Rectangular | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.307" (7.80mm) | 0.430" (10.92mm) | 0.512" (13.00mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 21 | 0.083" (2.11mm) | 0.430" (10.92mm) | 0.260" (6.60mm) | 0.484" (12.29mm) | Boot - 90° | |
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Black | - | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.220" (30.99mm) | Polyolefin (PO), Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.790" (20.07mm) | 1.540" (39.12mm) | Boot - 90° | |
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Black | Abrasion Resistant, Adhesive Coating, Corrosion Resistant, Flame Retardant, Weather Resistant | 0.984" (24.99mm) | 1.750" (44.45mm) | 2.300" (58.42mm) | Polyolefin (PO), Semi-Rigid | - | 0.260" (6.60mm) | 0.790" (20.07mm) | 1.181" (30.00mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 1.610" (40.89mm) | 2.260" (57.40mm) | 1.000" (25.40mm) | Polyolefin (PO), Semi-Rigid | - | 1.000" (25.40mm) | 1.161" (29.49mm) | - | 7.059" (179.30mm) | Boot |
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