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Littelfuse 46211000000 1 A 462 time-lag SMD Fuse
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pLittelfuse 46211000000 — 1 A, 250 V, time-delay SMD fuse, 100 A @ 350 VAC/VDC; 150 A @ 250 VAC/VDC interrupting./p
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Littelfuse 46211000000 1 A 462 time-lag SMD Fuse
Littelfuse 46211000000 1 A 462 time-lag SMD Fuse belongs to the Littelfuse range. It carries 1 A, rated 250 VAC/VDC IEC; 350 VAC/VDC UL, uses a time-delay element.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Manufacturer / Series | Littelfuse / 462 Series |
| Part number | 46211000000 |
| Fuse characteristic | time-lag |
| Rated current | 1 A |
| Voltage rating | 250 VAC/VDC IEC; 350 VAC/VDC UL |
| Interrupting rating | 100 A @ 350 VAC/VDC; 150 A @ 250 VAC/VDC |
| Nominal cold resistance | 0.0867 Ω |
| Nominal melting I²t | 2.7 A²s |
| Package | 10.5 × 4.5 mm NANO2 UMF |
| Operating temperature | -40 °C to +85 °C |
| Agency / environmental | UL Recognized, IEC 60127-4 UMF approvals, RoHS compliant, halogen-free and lead-free |
Design Notes
- Interrupting capability is 100 A @ 350 VAC/VDC; 150 A @ 250 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 250 VAC/VDC IEC; 350 VAC/VDC UL; a lower-rated part is not a safe substitute.
- Do not upsize beyond 1 A to stop nuisance trips — fix the cause instead.
Where It Is Used
Typical places this fuse turns up:
- EV
- adapter
- lighting
Ordering Details
Order code 46211000000 from Littelfuse, supplied in 10.5 × 4.5 mm NANO2 UMF. Confirm the exact suffix before release.
Common Questions
What are the ratings of the 46211000000?
1 A continuous at 250 VAC/VDC IEC; 350 VAC/VDC UL, interrupting rating 100 A @ 350 VAC/VDC; 150 A @ 250 VAC/VDC.
Is the 46211000000 fast-acting or time-delay?
It is time-delay. It tolerates short inrush surges.
Can the 46211000000 be used on a higher fault-current circuit?
No — its interrupting rating is 100 A @ 350 VAC/VDC; 150 A @ 250 VAC/VDC. Choose a part whose breaking capacity exceeds the prospective fault current.
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