
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
| Parameter | Value |
|---|---|
| Type | Polymeric |
| Series | PolySwitch®, RUSBF |
| Mounting | Through Hole |
| Voltage - max | 16V |
| Current - max | 40 A |
| Current - trip | 1.8 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 - seated | 0.480\" (12.20mm) |
| Approval agency | CSA, TUV, UL |
| Package | Bag |
| Lead spacing | 0.199\" (5.05mm) |
| Time to trip | 1.2 s |
| Case | Radial, Disc |
| Resistance - initial (Ri) | 70 mOhms |
| Resistance - post trip (R1) | 180 mOhms |