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Interference-Shielding Heat-Shrink Tubing
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A layer of conductive cloth protects wire and cable from signal interference caused by nearby equipment and devices. This tubing is often used to cover a terminal where an existing shield has been stripped for a connector. For a tight seal over irregularly shaped objects, it shrinks down to a quarter of its original ID.
Note: For proper grounding, a conductive wire or braid strip (not included) should be wound around the outside of wires or attached by conductive epoxy (not included) prior to shrinking.
Dielectric Strength—Dielectric strength is the maximum voltage a material can handle before it starts to breakdown. The higher the dielectric strength of a material, the better it is for preventing electricity, heat, or signal from dissipating from wire and cable.
ID | 1 ft. Long | 4 ft. Long | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Before Shrinking | Min. After Shrinking | Min. Wall Thk. After Shrinking | Dielectric Strength, V/mil | Shrink Temp., ° F | Temp. Range, ° F | Certification | Color | Each | Each | ||||
Polyolefin | |||||||||||||
2:1 Shrink Ratio | |||||||||||||
| 0.19" | 0.09" | 0.02" | 500 | 190 | -65 to 275 | UL Recognized Component | Black | 7937K21 | 000000 | 7937K31 | 000000 | ||
| 0.25" | 0.13" | 0.03" | 500 | 190 | -65 to 275 | UL Recognized Component | Black | 7937K22 | 00000 | 7937K32 | 00000 | ||
| 0.38" | 0.19" | 0.03" | 500 | 190 | -65 to 275 | UL Recognized Component | Black | 7937K23 | 00000 | 7937K33 | 00000 | ||
| 0.5" | 0.25" | 0.03" | 500 | 190 | -65 to 275 | UL Recognized Component | Black | 7937K24 | 00000 | 7937K34 | 00000 | ||
| 0.75" | 0.38" | 0.03" | 500 | 190 | -65 to 275 | UL Recognized Component | Black | 7937K25 | 00000 | 7937K35 | 00000 | ||
| 1" | 0.5" | 0.04" | 500 | 190 | -65 to 275 | UL Recognized Component | Black | 7937K26 | 00000 | 7937K36 | 00000 | ||
3:1 Shrink Ratio | |||||||||||||
| 0.25" | 0.08" | 0.02" | 500 | 190 | -65 to 275 | — | Black | ——— | 0 | 7937K101 | 000000 | ||
| 0.38" | 0.12" | 0.03" | 500 | 190 | -65 to 275 | — | Black | ——— | 0 | 7937K102 | 000000 | ||
| 0.5" | 0.16" | 0.03" | 500 | 190 | -65 to 275 | — | Black | ——— | 0 | 7937K103 | 000000 | ||
| 0.75" | 0.24" | 0.04" | 500 | 190 | -65 to 275 | — | Black | ——— | 0 | 7937K104 | 000000 | ||
| 1" | 0.32" | 0.05" | 500 | 190 | -65 to 275 | — | Black | ——— | 0 | 7937K105 | 000000 | ||
4:1 Shrink Ratio | |||||||||||||
| 0.75" | 0.19" | 0.04" | 500 | 190 | -65 to 275 | — | Black | ——— | 0 | 7937K106 | 000000 | ||
| 1" | 0.26" | 0.06" | 500 | 190 | -65 to 275 | — | Black | ——— | 0 | 7937K107 | 000000 | ||
