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Littelfuse 0460003.ER PICO® SMF 460 3 A 125 VAC/VDC Slo-Blo® / Time-Lag (T) Fuse – ER Tape & Reel 2,500 pcs
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pLittelfuse 0460003.ER — 3 A, 125 V, time-delay fuse, 50 A @ 125 VAC/VDC interrupting./p
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Littelfuse 0460003.ER PICO® SMF 460 3 A 125 VAC/VDC Slo-Blo® / Time-Lag (T) Fuse – ER Tape & Reel 2,500 pcs
The 0460003.ER from Littelfuse carries 3 A, rated 125 VAC/VDC, uses a time-delay element.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Manufacturer / Series | Littelfuse / PICO® SMF 460 |
| Part number | 0460003.ER |
| Fuse characteristic | Slo-Blo® / Time-Lag (T) |
| Rated current | 3 A |
| Rated voltage | 125 VAC/VDC |
| Interrupting capability | 50 A @ 125 VAC/VDC |
| Package | PICO® SMF surface-mount fuse; Tape & Reel |
| Mounting method | Surface Mount (SMD) |
| Dimensions | 8.26 × 4.32 × 3.05 mm |
| Lead pitch | N/A (SMD) |
| Operating temperature | -55°C to +125°C |
| Approvals | UL E10480; CSA 29862; PSE NBK030205-E10480B |
| Standards / compliance | UL Recognized; CSA; PSE (1–5A); RoHS |
| Environmental | RoHS compliant; halogen free |
| Nominal cold resistance | 0.038 Ω |
| Nominal melting I²t | 18.15 A²s |
| Packaging / order code | ER: Tape & Reel, 2,500 pcs; SMD terminals |
| Product status | Verify current orderability with Littelfuse / authorized distribution |
Practical Notes
- Interrupting capability is 50 A @ 125 VAC/VDC — confirm the circuit's prospective fault current stays below this.
- Time-delay element rides through motor starting and capacitive inrush without nuisance opening.
- Startup surges of several times rated current are tolerated for a short window.
- Working voltage must stay at or below 125 VAC/VDC; a lower-rated part is not a safe substitute.
- Do not upsize beyond 3 A to stop nuisance trips — fix the cause instead.
Application Scenarios
Common installation contexts include:
- EV
Buying Notes
Order code 0460003.ER from Littelfuse, supplied in PICO® SMF surface-mount fuse; Tape & Reel. Confirm the exact suffix before release.
Questions and Answers
What are the ratings of the 0460003.ER?
3 A continuous at 125 VAC/VDC, interrupting rating 50 A @ 125 VAC/VDC.
Is the 0460003.ER fast-acting or time-delay?
It is time-delay. It tolerates short inrush surges.
Can the 0460003.ER be used on a higher fault-current circuit?
No — its interrupting rating is 50 A @ 125 VAC/VDC. Choose a part whose breaking capacity exceeds the prospective fault current.
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