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Littelfuse Inc. RUSBF120 — Circuit Protection

Littelfuse Inc. RUSBF120

MPNRUSBF120
Active
$0.5700Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

RUSBF120 specifications
ParameterValue
TypePolymeric
SeriesPolySwitch®, RUSBF
MountingThrough Hole
Voltage - max6V
Current - max40 A
Current - trip2 A
Current - hold (Ih)1.2 A
Operating temperature-40°C~85°C
Size (Dimension)0.272\" Dia x 0.122\" T (6.90mm x 3.10mm)
Height - seated0.461\" (11.70mm)
Approval agencyCSA, TUV, UL
PackageBag
Lead spacing0.201\" (5.10mm)
Time to trip500 ms
CaseRadial, Disc
Resistance - initial (Ri)70 mOhms
Resistance - post trip (R1)140 mOhms