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 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
TE Connectivity
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Black | Adhesive Coating, Fluid Resistant, Lip | 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 | |
TE Connectivity
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Black | - | 0.500" (12.70mm) | 1.060" (26.92mm) | 2.118" (53.80mm) | Polyolefin (PO), Semi-Rigid | 34 | 0.230" (5.84mm) | 0.520" (13.21mm) | 1.520" (38.61mm) | 4.240" (107.70mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
3M Electronic Solutions
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Black | Adhesive Coating, Flame Retardant | 0.500" (12.70mm) | 1.200" (30.48mm) | - | Polyolefin (PO), Semi-Rigid | - | 0.160" (4.06mm) | 0.500" (12.70mm) | 1.000" (25.40mm) | 3.300" (83.82mm) | - | Boot, Transition - Breakout, 3:1 | |
3M Electronic Solutions
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Black | Adhesive Coating, Flame Retardant | 0.690" (17.53mm) | 1.500" (38.10mm) | - | Polyolefin (PO), Semi-Rigid | - | 0.180" (4.57mm) | 0.650" (16.51mm) | 2.200" (55.88mm) | 4.000" (101.60mm) | - | Boot, Transition - Breakout, 3:1 | |
Alpha Wire
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Black | - | 0.450" (11.43mm) | 1.000" (25.40mm) | - | Polyolefin (PO), Semi-Rigid | - | - | - | - | 2.700" (68.58mm) | - | Cap | |
TE Connectivity
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Black | - | 0.800" (20.32mm) | 1.250" (31.75mm) | 2.300" (58.42mm) | Polyolefin (PO) | - | 0.190" (4.83mm) | 0.500" (12.70mm) | 1.000" (25.40mm) | - | - | Boot, Transition - Breakout, 4:1 | |
TE Connectivity
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Black | Adhesive Coating | 0.272" (6.91mm) | 0.520" (13.21mm) | 0.902" (22.91mm) | Elastomer, 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 | - | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.512" (38.40mm) | Elastomer, Semi-Rigid | 11 | 0.138" (3.51mm) | 0.260" (6.60mm) | 0.949" (24.10mm) | - | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 0.500" (12.70mm) | 1.060" (26.92mm) | 2.118" (53.80mm) | Elastomer, Semi-Rigid | 34 | 0.230" (5.84mm) | 0.520" (13.21mm) | 1.520" (38.61mm) | 4.240" (107.70mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
3M Electronic Solutions
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Black | Adhesive Coating, Flame Retardant | 1.000" (25.40mm) | 2.350" (59.69mm) | - | Polyolefin (PO), Semi-Rigid | - | 0.350" (8.89mm) | 1.000" (25.40mm) | 1.700" (43.18mm) | 8.500" (215.90mm) | - | Boot, Transition - Breakout, 4:1 | |
TE Connectivity
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Black | - | 0.710" (18.03mm) | 1.520" (38.61mm) | 2.579" (65.51mm) | Polyolefin (PO), Semi-Rigid | 34 | 0.488" (12.40mm) | 1.060" (26.92mm) | 3.098" (78.69mm) | - | - | Boot, Transition - Breakout, 2:1 (Y) | |
TE Connectivity
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Black | - | 0.520" (13.21mm) | 1.060" (26.92mm) | 1.690" (42.93mm) | Polyolefin (PO), Flexible | 23 | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.980" (50.29mm) | 3.669" (93.19mm) | - | Boot, Transition - Breakout, 3:1 | |
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Glenair
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
TE Connectivity
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Black | - | 0.382" (9.70mm) | 0.760" (19.30mm) | 1.421" (36.09mm) | Elastomer, Semi-Rigid | 22 | 0.209" (5.31mm) | 0.370" (9.40mm) | 1.260" (32.00mm) | - | - | Boot, Transition - Breakout, 4:1 | |
Alpha Wire
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Black | - | 0.710" (18.03mm) | 1.550" (39.37mm) | - | Polyolefin (PO), Semi-Rigid | - | - | - | - | 3.600" (91.44mm) | - | Cap | |
TE Connectivity
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Black | - | 1.382" (35.10mm) | 2.362" (59.99mm) | 2.130" (54.10mm) | Elastomer, Semi-Rigid | 74 | 0.618" (15.70mm) | 2.362" (59.99mm) | 1.770" (44.96mm) | 3.150" (80.01mm) | - | Boot - 90° | |
TE Connectivity
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.752" (19.10mm) | 1.030" (26.16mm) | 0.800" (20.32mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 32 | 0.102" (2.59mm) | 0.217" (5.51mm) | 1.770" (44.96mm) | 2.921" (74.19mm) | - | Boot | |
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Black | - | 0.449" (11.40mm) | 1.350" (34.29mm) | 2.669" (67.79mm) | EPB | 22 | 0.449" (11.40mm) | 0.811" (20.60mm) | 2.669" (67.79mm) | 5.339" (135.61mm) | - | Boot, Transition - Breakout, 3:1 | |
TE Connectivity
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Black | Adhesive Coating, Fluid Resistant | 0.740" (18.80mm) | 1.520" (38.61mm) | 2.421" (61.49mm) | Elastomer, Semi-Rigid | 34 | 0.382" (9.70mm) | 0.760" (19.30mm) | 2.902" (73.71mm) | 5.319" (135.10mm) | - | Boot, Transition - Breakout, 3:1 | |
3M Electronic Solutions
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Black | Adhesive Coating, Flame Retardant | 3.000" (76.20mm) | 5.250" (133.35mm) | - | Polyolefin (PO), Semi-Rigid | - | 0.550" (13.97mm) | 1.350" (34.29mm) | 3.000" (76.20mm) | 9.000" (228.60mm) | - | Boot, Transition - Breakout, 4:1 | |
TE Connectivity
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Black | - | 1.110" (28.19mm) | 1.500" (38.10mm) | 1.970" (50.04mm) | Polyolefin (PO), Silver Composite | 63 | 0.390" (9.91mm) | 0.940" (23.88mm) | 1.180" (29.97mm) | 4.330" (109.98mm) | 4.330" (109.98mm) | Boot | |
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Glenair
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
TE Connectivity
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Black | Eyelet and Clip, Flame Retardant, Fluid Resistant, Heat Resistant | 0.547" (13.89mm) | 0.710" (18.03mm) | 1.380" (35.05mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 12 | 0.169" (4.29mm) | 0.710" (18.03mm) | 1.102" (27.99mm) | 2.760" (70.10mm) | - | Boot | |
TE Connectivity
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Black | Flame Retardant | 0.390" (9.91mm) | 0.969" (24.61mm) | 0.858" (21.79mm) | Polyolefin (PO), Semi-Rigid | 21 | 0.209" (5.31mm) | 0.969" (24.61mm) | - | 1.500" (38.10mm) | - | Boot | |
TE Connectivity
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Black | Adhesive Coating | 0.311" (7.90mm) | 0.701" (17.81mm) | 0.791" (20.10mm) | Polyolefin (PO), Semi-Rigid | 11 | 0.150" (3.81mm) | 0.701" (17.81mm) | 0.449" (11.40mm) | - | - | Boot - 90° | |
TE Connectivity
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Black | Adhesive Coating, Fluid Resistant, Lip | 0.559" (14.20mm) | 1.180" (29.97mm) | 0.790" (20.07mm) | Elastomer, Semi-Rigid | 32 | 0.232" (5.89mm) | 1.180" (29.97mm) | 0.453" (11.51mm) | 1.690" (42.93mm) | - | Boot | |
TE Connectivity
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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) | 0.591" (15.01mm) | Elastomer, Semi-Rigid, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 3.882" (98.60mm) | 4.772" (121.21mm) | - | Boot | |
TE Connectivity
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Black | - | 1.110" (28.19mm) | 1.160" (29.46mm) | 0.870" (22.10mm) | Polyolefin (PO), Semi-Rigid | 21 | 0.209" (5.31mm) | 0.402" (10.21mm) | - | 1.531" (38.89mm) | - | Boot, Rectangular | |
TE Connectivity
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Black | - | 0.559" (14.20mm) | 1.181" (30.00mm) | 1.051" (26.70mm) | Elastomer, Semi-Rigid | 32 | 0.252" (6.40mm) | 1.181" (30.00mm) | 0.701" (17.81mm) | - | - | Boot - 90° | |
TE Connectivity
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Black | Adhesive Coating | 0.559" (14.20mm) | 1.181" (30.00mm) | 1.051" (26.70mm) | Polyolefin (PO), Semi-Rigid | 32 | 0.252" (6.40mm) | 1.181" (30.00mm) | 0.701" (17.81mm) | - | - | Boot - 90° | |
TE Connectivity
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Black | - | 1.661" (42.19mm) | 1.710" (43.43mm) | 1.000" (25.40mm) | Polyolefin (PO), Semi-Rigid | 32 | 0.319" (8.10mm) | 0.551" (14.00mm) | - | 1.770" (44.96mm) | - | Boot, Rectangular | |
TE Connectivity
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Black | - | 0.701" (17.81mm) | 1.220" (30.99mm) | 1.390" (35.31mm) | Polyolefin (PO), Flexible | 42 | 0.283" (7.19mm) | 1.220" (30.99mm) | 0.965" (24.51mm) | 2.630" (66.80mm) | - | Boot | |
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Glenair
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
TE Connectivity
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Black | Fluid Resistant, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.380" (35.05mm) | Elastomer, Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.670" (17.02mm) | 2.640" (67.06mm) | - | Boot | |
TE Connectivity
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Black | Fluid Resistant, Lip | 0.559" (14.20mm) | 1.180" (29.97mm) | 0.790" (20.07mm) | Elastomer, Semi-Rigid | 32 | 0.232" (5.89mm) | 1.180" (29.97mm) | 0.453" (11.51mm) | 1.690" (42.93mm) | - | Boot | |
TE Connectivity
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.449" (11.40mm) | 0.882" (22.40mm) | 0.559" (14.20mm) | Polyolefin (PO), Flexible, Irradiated | 11 | 0.252" (6.40mm) | 0.882" (22.40mm) | 3.402" (86.41mm) | 4.169" (105.89mm) | - | Boot | |
TE Connectivity
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Black | Adhesive Coating, Flame Retardant, Lip | 0.409" (10.39mm) | 0.941" (23.90mm) | 0.830" (21.08mm) | Polyolefin (PO), Semi-Rigid | 21 | 0.220" (5.59mm) | 0.941" (23.90mm) | 0.512" (13.00mm) | 1.496" (38.00mm) | - | Boot | |
TE Connectivity
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Black | - | 0.559" (14.20mm) | 1.118" (28.40mm) | 1.071" (27.20mm) | Polyolefin (PO), Flexible | 32 | 0.260" (6.60mm) | 1.118" (28.40mm) | 0.980" (24.89mm) | - | - | Boot - 90° | |
TE Connectivity
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Black | Fluid Resistant | 1.079" (27.41mm) | 1.681" (42.70mm) | 2.469" (62.71mm) | Elastomer, Semi-Rigid | 63 | 0.370" (9.40mm) | 1.681" (42.70mm) | 0.992" (25.20mm) | 3.902" (99.11mm) | - | Boot | |
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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 | - | 0.681" (17.30mm) | 1.280" (32.51mm) | 1.201" (30.51mm) | Polyolefin (PO), Semi-Rigid | 42 | 0.272" (6.91mm) | 1.280" (32.51mm) | 0.980" (24.89mm) | - | - | Boot - 90° | |
TE Connectivity
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Black | Adhesive Coating, Fluid Resistant | 0.681" (17.30mm) | 1.280" (32.51mm) | 1.201" (30.51mm) | Elastomer, Semi-Rigid | 42 | 0.272" (6.91mm) | 1.280" (32.51mm) | 0.980" (24.89mm) | - | - | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.449" (11.40mm) | 0.882" (22.40mm) | 0.728" (18.49mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 11 | 0.252" (6.40mm) | 0.882" (22.40mm) | 3.449" (87.60mm) | 4.142" (105.21mm) | - | Boot - 90° | |
TE Connectivity
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Black | Fluid Resistant, Lip | 1.110" (28.19mm) | 1.690" (42.93mm) | 2.402" (61.01mm) | Elastomer, Semi-Rigid | 63 | 0.390" (9.91mm) | 1.690" (42.93mm) | 0.830" (21.08mm) | 3.898" (99.01mm) | - | Boot | |
TE Connectivity
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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) | 0.591" (15.01mm) | Elastomer, Semi-Rigid, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 3.882" (98.60mm) | 4.772" (121.21mm) | - | Boot | |
TE Connectivity
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Black | - | 0.700" (17.78mm) | 1.220" (30.99mm) | - | Polyolefin (PO), Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.460" (11.68mm) | 1.600" (40.64mm) | - | Boot | |
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Black | Adhesive Coating, Flame Retardant | 1.079" (27.41mm) | 1.681" (42.70mm) | 2.469" (62.71mm) | Polyolefin (PO), Flexible | 63 | 0.370" (9.40mm) | 1.681" (42.70mm) | 0.992" (25.20mm) | 3.902" (99.11mm) | - | Boot | |
TE Connectivity
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Black | Adhesive Coating, Fluid Resistant | 0.681" (17.30mm) | 1.280" (32.51mm) | 1.201" (30.51mm) | Elastomer, Semi-Rigid | 42 | 0.272" (6.91mm) | 1.280" (32.51mm) | 0.980" (24.89mm) | - | - | Boot - 90° | |
TE Connectivity
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Black | - | 0.230" (5.84mm) | 0.520" (13.21mm) | 1.031" (26.19mm) | Polyolefin (PO), 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) | |
TE Connectivity
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Black | - | 0.270" (6.86mm) | 1.260" (32.00mm) | 0.980" (24.89mm) | Fluoroelastomer (FKM), Flexible | 12 | - | - | - | 1.380" (35.05mm) | - | Boot |
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