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KYOCERA AVX F1206B0R20FSTR — Circuit Protection

F1206B0R20FSTR KYOCERA AVX Accu-Guard® II Fast Blow Fuse

MPNF1206B0R20FSTR
Active

KYOCERA AVX Accu-Guard® II, Fast Blow, Surface Mount, 1206 (3014 Metric), 200 mA, 63 V DC, 50 A Breaking Capacity, -55°C to 125°C, cUL, UL

$0.9900Ref. price · indicative, final on quote
KYOCERA AVX F1206B0R20FSTR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

F1206B0R20FSTR specifications
ParameterValue
SeriesAccu-Guard® II
Fuse typeBoard Mount (Cartridge Style Excluded)
MountingSurface Mount
Voltage rating - DC63 V
Breaking capacity @ rated voltage50A
Current rating200 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) Cut Tape (CT)
Case1206 (3014 Metric)

Product details

Active production — sourcing and fit for low-power DC rails

The F1206B0R20FSTR is an active-production surface-mount fast blow fuse from the KYOCERA AVX Accu-Guard® II series, rated 200 mA at 63 V DC with a 50 A breaking capacity. This combination suits it for protecting low-current DC power rails where a hard short could otherwise dump enough energy to damage the board before a larger fuse clears.

The 50 A breaking capacity at 63 V DC means this fuse can safely interrupt a fault current up to 50 A without sustaining an arc. For a 200 mA rail, the fuse clears well before the downstream silicon sees destructive energy.

Package and approvals for board-level integration

Housed in a 1206 (3014 metric) footprint measuring 3.10 mm x 1.60 mm x 1.20 mm, this fuse fits standard pick-and-place assembly. The cUL and UL approvals simplify safety certification of the end product — no need for additional fuse testing if the design stays within the rated voltage and breaking capacity.

Frequently asked questions

What is the closest alternative to the F1206B0R20FSTR in the same family?

Within the Accu-Guard® II series, the main parametric axis is the current rating. For a higher trip threshold, the F1206B0R50FSTR (500 mA) or F1206B1R00FSTR (1 A) share the same 1206 package, 63 V DC rating, and fast blow characteristic. No pin-compatible alternative exists because these are two-terminal SMD fuses — the footprint is identical across the series.