Accu-Guard® 2A fast-blow fuse — what it protects
The F1206A2R00FSTR is a surface-mount fast-blow fuse from the KYOCERA AVX Accu-Guard® series, rated at 2 A continuous current with a 32 V DC voltage rating. Its 0.04 melting I²t and 50 A breaking capacity at rated voltage define the energy let-through and the maximum fault current it can safely interrupt — key numbers for coordinating with downstream components and meeting UL/cUL requirements. The 1206 (3216 Metric) package suits high-density PCB layouts where a board-mount fuse must fit a tight footprint without sacrificing fault protection.
KYOCERA AVX lists the F1206A2R00FSTR as obsolete. For BOM continuity, verify the date-code traceability and lot consistency before committing — the laser etch on the part body should match the manufacturer's known marking format for the Accu-Guard® series from the production period.
Wide temperature range and fast-blow response
The fast-blow response means it clears quickly on overcurrent — useful for protecting sensitive ICs or power rails where a slow-blow would let through damaging energy. DC cold resistance of 0.065 Ohms keeps voltage drop across the fuse at 2 A low for downstream regulators.