FSN-12A-15 is a flexible jumper wire assembly manufactured by TE Connectivity/Buchanan Brand, designed for interconnecting electronic components with multiple pin configuration options. The product features selectable conductor pitches ranging from 1.00 mm (0.039 in) to 5.08 mm (0.200 in), with wire gauges from AWG 28 to AWG 24 depending on pitch selection. Available pin arrangements include straight pins (Type A), right-angle pins bent down (Type B), right-angle staggered pins with short pin 1 (Type C), and straight angle staggered pins (Type D), with insulation materials available in Nomex, Polyester, Teflon, or Kapton. The jumper supports standard lengths from 11.92 mm to 152.40 mm (0.500 to 6.000 inches) in 2.50 mm (0.10 inch) increments, plus 6.35 mm (0.25 inch) and 19.05 mm (0.75 inch) options. This product is commonly used in automotive applications and general electronic interconnection where flexible, customizable jumper solutions are required.