RUSBF075
Littelfuse Inc.
0.449\" (11.40mm)Bag; Bag-40°C~85°C
Ref. price$0.4800
Lead time on requestGet quote
Littelfuse Inc. RUSB Series
3 variants · Littelfuse Inc.
About the Littelfuse Inc. RUSB Series
The Littelfuse Inc. RUSB Series series groups 3 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common approval agency of CSA, TUV, UL, case of Radial, Disc and current - max of 40 A. Variants differ by current - hold (Ih), current - trip and height - seated, so you can match the exact current - hold (Ih) your application requires using the selection guide below. All listed Littelfuse Inc. RUSB Series part numbers are active and orderable.
Select a variant by
- Current - hold (Ih)
- 2.5 A · 750 mA · 900 mA
- Current - trip
- 1.3 A · 1.8 A · 5 A
- Height - seated
- 0.449\" (11.40mm) · 0.480\" (12.20mm) · 0.720\" (18.30mm)
- Lead spacing
- 0.118\" (3.00mm) · 0.199\" (5.05mm) · 0.201\" (5.10mm)
- Operating temperature
- -40°C ~ 85°C · -40°C~85°C
- Package
- Bag · Bag; Bag
- Resistance - initial (Ri)
- 20 mOhms · 70 mOhms · 110 mOhms
- Resistance - post trip (R1)
- 60 mOhms · 180 mOhms · 230 mOhms
Shared specifications
- Approval agency
- CSA, TUV, UL
- Case
- Radial, Disc
- Current - max
- 40 A
- Mounting
- Through Hole
- Ratings
- -
- Thickness
- -
- Type
- Polymeric
Variant comparison
| Parameter | RUSBF075 | RUSBF090 | RUSBF250 |
|---|---|---|---|
| Current - hold (Ih) | 750 mA | 900 mA | 2.5 A |
| Current - trip | 1.3 A | 1.8 A | 5 A |
| Height - seated | 0.449\" (11.40mm) | 0.480\" (12.20mm) | 0.720\" (18.30mm) |
| Lead spacing | 0.201\" (5.10mm) | 0.199\" (5.05mm) | 0.118\" (3.00mm) |
| Operating temperature | -40°C~85°C | -40°C ~ 85°C | -40°C~85°C |
| Package | Bag; Bag | Bag | Bag |
| Resistance - initial (Ri) | 110 mOhms | 70 mOhms | 20 mOhms |
| Resistance - post trip (R1) | 230 mOhms | 180 mOhms | 60 mOhms |
Request a quote on any Littelfuse Inc. RUSB Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.
