
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
| Parameter | Value |
|---|---|
| Type | Polymeric |
| Series | PolySwitch®, RUSBF |
| Mounting | Through Hole |
| Voltage - max | 6V |
| Current - max | 40 A |
| Current - trip | 2 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 - seated | 0.461\" (11.70mm) |
| Approval agency | CSA, TUV, UL |
| Package | Bag |
| Lead spacing | 0.201\" (5.10mm) |
| Time to trip | 500 ms |
| Case | Radial, Disc |
| Resistance - initial (Ri) | 70 mOhms |
| Resistance - post trip (R1) | 140 mOhms |