LF 1206 Fuse 437 Series SMD SMF Very Fast Blow Surface Mount F 5A 24V Marking Code T. Protect your sensitive electronic components with our high-speed LF 1206 SMD fuses. These surface-mount fuses offer fast-acting protection against overcurrent conditions. Available in various amperage ratings, including 5A, these fuses are ideal for a wide range of applications, such as consumer electronics, automotive electronics, and industrial controls.