Skip to main content
Littelfuse Inc. RUSBF090 — Circuit Protection

Littelfuse Inc. RUSBF090

MPNRUSBF090
Active
$0.5600Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

RUSBF090 specifications
ParameterValue
TypePolymeric
SeriesPolySwitch®, RUSBF
MountingThrough Hole
Voltage - max16V
Current - max40 A
Current - trip1.8 A
Current - hold (Ih)900 mA
Operating temperature-40°C ~ 85°C
Size (Dimension)0.291\" Dia x 0.122\" T (7.40mm x 3.10mm)
Height - seated0.480\" (12.20mm)
Approval agencyCSA, TUV, UL
PackageBag
Lead spacing0.199\" (5.05mm)
Time to trip1.2 s
CaseRadial, Disc
Resistance - initial (Ri)70 mOhms
Resistance - post trip (R1)180 mOhms