The TC-CAPS-4003-2 is a red, single-wall, heat-shrinkable end cap designed to insulate and terminate dead-end electrical components. It features an expanded minimum inside diameter of 3.2 mm that shrinks to a maximum of 1.3 mm after heating, providing a 2:1 shrink ratio. This vibration-proof cap has a nominal recovered wall thickness of 0.64 mm and operates reliably in temperatures from -55°C to +135°C. Resistant to common chemicals and solvents, it is ideal for providing permanent or temporary electrical insulation for wires and connectors.