FSK-11.25A-20 is a flexible jumper wire assembly manufactured by TE Connectivity (Buchanan brand) designed for custom electronic interconnections with multiple configuration options. The product features a conductor pitch of 1.25 mm (0.049 inches) with AWG 28 wire gauge and supports variable insulation lengths from 0.50 to 30.0 inches in 0.10-inch increments, plus 0.25 and 0.75-inch options. The jumper accommodates multiple insulation materials including Nomex, Polyester, Teflon, and Kapton, with pin arrangements available in both straight and bent configurations (E, F, G, H, J, K, L bends). Standard specifications include a current rating of 8 amperes, minimum bend radius of 3.18 mm, and operating temperature range of -40°C to +150°C depending on insulation material. This product is commonly used in automotive, telecommunications, and industrial control applications where flexible, customizable interconnections are required.