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KYOCERA AVX F1206B0R25FWTR — Circuit Protection

F1206B0R25FWTR 250 mA Fast-Blow SMD Fuse

MPNF1206B0R25FWTR
Active

KYOCERA AVX Accu-Guard® II series, F1206B0R25FWTR, a 250 mA fast-blow board-mount SMD fuse in a 1206 (3216 metric) package, rated 63 V DC with 50 A breaking capacity.

$0.4172Ref. price · indicative, final on quote
KYOCERA AVX F1206B0R25FWTR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

F1206B0R25FWTR specifications
ParameterValue
SeriesAccu-Guard® II
Fuse typeBoard Mount (Cartridge Style Excluded)
MountingSurface Mount
Voltage rating - DC63 V
Breaking capacity @ rated voltage50A
Current rating250 mA
Response timeFast Blow
Operating temperature-55°C ~ 125°C
Size (Dimension)0.122\" L x 0.063\" W x 0.047\" H (3.10mm x 1.60mm x 1.20mm)
Approval agencycUL, UL
PackageTape & Reel (TR)
Melting i2t3E-05
Case1206 (3216 Metric)
DC cold resistance0.75 Ohms

Product details

250 mA fast-blow SMD fuse for secondary protection

The F1206B0R25FWTR is a 250 mA fast-blow fuse from the KYOCERA AVX Accu-Guard® II series, designed for board-level overcurrent protection. Its 63 V DC rating covers common low-voltage rails with margin, and the fast-blow response clears faults quickly. The 1206 SMD footprint is a standard size that reworks easily with a hand iron, no hot air needed.

Breaking capacity and energy let-through at 63 V DC

Rated breaking capacity is 50 A at the rated 63 V DC — the fuse can safely interrupt a short-circuit current up to 50 A without rupturing the ceramic body. The melting I²t is 3E-05, a low value that limits the energy delivered to the protected circuit during a fault, reducing the risk of secondary damage to sensitive semiconductors.

Active production with cUL and UL safety marks

It is approved by cUL and UL, which simplifies end-product safety certification for equipment sold in North America.

Frequently asked questions

What is the current rating of F1206B0R25FWTR?

The current rating is 250 mA. This is the continuous current the fuse can carry without opening under normal conditions.

Is F1206B0R25FWTR a fast blow or slow blow fuse?

It is a fast blow (fast-acting) fuse. It responds quickly to overcurrent conditions, making it suitable for protecting sensitive electronics where a slow-blow fuse would allow too much energy through.