Bulk discount available
Subtotal (1 pack of 5 units)*
£2.48
(exc. VAT)
£2.975
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 55 unit(s) ready to ship
- Plus 75 unit(s) ready to ship from another location
- Plus 200 unit(s) shipping from 26 February 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit | Per Pack* |
|---|---|---|
| 5 - 45 | £0.496 | £2.48 |
| 50 - 245 | £0.466 | £2.33 |
| 250 - 495 | £0.36 | £1.80 |
| 500 - 1245 | £0.352 | £1.76 |
| 1250 + | £0.344 | £1.72 |
*price indicative
- RS Stock No.:
- 506-965
- Mfr. Part No.:
- RUSBF110
- Brand:
- Littelfuse
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Littelfuse | |
| Product Type | Resettable Fuse | |
| Trip Current | 2.2A | |
| Voltage | 16 V dc | |
| Time to Trip | 2.3s | |
| Current Rating | 40 A | |
| Hold Current | 1.1A | |
| Length | 7.4mm | |
| Height | 14.2mm | |
| Width | 3 mm | |
| Minimum Resistance | 0.05Ω | |
| Minimum Operating Temperature | -40°C | |
| Maximum Resistance | 140mΩ | |
| Maximum Operating Temperature | 60°C | |
| Power Dissipation | 0.7W | |
| Standards/Approvals | UL, RoHS, TUV, CSA | |
| Lead Orientation | Radial | |
| Series | RUSBF | |
| Select all | ||
|---|---|---|
Brand Littelfuse | ||
Product Type Resettable Fuse | ||
Trip Current 2.2A | ||
Voltage 16 V dc | ||
Time to Trip 2.3s | ||
Current Rating 40 A | ||
Hold Current 1.1A | ||
Length 7.4mm | ||
Height 14.2mm | ||
Width 3 mm | ||
Minimum Resistance 0.05Ω | ||
Minimum Operating Temperature -40°C | ||
Maximum Resistance 140mΩ | ||
Maximum Operating Temperature 60°C | ||
Power Dissipation 0.7W | ||
Standards/Approvals UL, RoHS, TUV, CSA | ||
Lead Orientation Radial | ||
Series RUSBF | ||
PolySwitch™ PTC Devices RUSBF Series
PCB Wire Ended
All are UL, CSA, TUV approved
Protection of electrical and electronic circuits against excessive currents
Rapid switch from low resistance state to very high resistance with electrical overload or short circuit
Quick and automatic reset and return to low resistance state when fault condition corrected and power removed
Features:
Automatically resets itself thousands of times
Maintenance free
Small size and no fuseholder required
Main applications:
Security systems
Power supplies and transformers
Power switching devices
Automotive and medical equipment
Instrumentation and control
Computers and peripherals
Audio visual and telecommunications
Approvals
UL, CSA, TUV