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View bulk pricing optionsSubtotal (1 pack of 5 units)*
£2.50
(exc. VAT)
£3.00
(inc. VAT)
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In Stock
- Plus 15 unit(s) shipping from 09 November 2026
- Plus 85 unit(s) shipping from 16 November 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit | Per Pack* | Saving |
|---|---|---|---|
| 5 - 45 | £0.50 | £2.50 | - |
| 50 - 245 | £0.47 | £2.35 | £1.50 |
| 250 - 495 | £0.364 | £1.82 | £34.00 |
| 500 - 1245 | £0.356 | £1.78 | £72.00 |
| 1250 + | £0.348 | £1.74 | £190.00 |
*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 | |
| Trip Current | 2.2A | |
| Product Type | Resettable Fuse | |
| Voltage | 16V dc | |
| Time to Trip | 2.3s | |
| Current Rating | 40A | |
| Hold Current | 1.1A | |
| Length | 7.4mm | |
| Height | 14.2mm | |
| Width | 3mm | |
| 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 | |
| Series | RUSBF | |
| Lead Orientation | Radial | |
| Select all | ||
|---|---|---|
Brand Littelfuse | ||
Trip Current 2.2A | ||
Product Type Resettable Fuse | ||
Voltage 16V dc | ||
Time to Trip 2.3s | ||
Current Rating 40A | ||
Hold Current 1.1A | ||
Length 7.4mm | ||
Height 14.2mm | ||
Width 3mm | ||
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 | ||
Series RUSBF | ||
Lead Orientation Radial | ||
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
Related links
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- Littelfuse 1.1 A Resettable Fuse, 33V dc
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- Littelfuse 1.1 A Resettable Fuse, 8V dc
- Littelfuse 1.1 A Resettable Fuse, 30V dc
- Littelfuse 1.1 A Resettable Fuse 60 V dc
- Littelfuse 1.1 A Resettable Fuse, 72V
- Littelfuse 1.1 A Resettable Fuse, 30V