Littelfuse FLQ-.200 is a low-voltage, time-delay fuse designed for protecting sensitive control circuits and transformers from overcurrent conditions. It features a 0.2A current rating and a 600V AC voltage rating, housed in a compact 5x20mm glass body for visual inspection of the fusible element. This fuse is constructed with a sand-filled design to provide a time-delay characteristic, allowing harmless inrush currents to pass while interrupting sustained faults, and it complies with international standards for safety and performance. Its typical applications include industrial control panels, power supplies, and instrumentation where reliable, precise protection is required.