The F221B3/32-BK100 is a heat shrinkable tubing constructed from black, cross-linked polyolefin. It features a minimum supplied internal diameter of 0.093 inches which shrinks to a maximum recovered ID of 0.046 inches, resulting in a nominal wall thickness of 0.020 inches. With an approximate 2:1 shrink ratio, it operates over a temperature range of -55°C to 135°C and has a minimum shrink temperature of 90°C. This tubing meets UL Standard 224 and AMS-DTL-23053/5 Class 1 specifications, making it ideal for providing insulation, strain relief, and bundling for wires and components in a variety of electronic applications.