
Littelfuse
0466005.NRHF is same-series 1206 fuse with higher 5A current rating.
0466003.NRHF is a 3A 32V very fast-acting 1206 fuse. Same-series alternates exist, but current changes require review.
2A or 5A shifts opening behavior.
Kept parts are 1206.
Passive fuse; no firmware.
Kept parts are active catalog items.
No verified drop-in replacement is proven from the provided data.
Start with Littelfuse 466 same-series parts, then validate current, I2t and interrupt rating.
Changing fuse current rating changes protection behavior.

Littelfuse
0466005.NRHF is same-series 1206 fuse with higher 5A current rating.
| Feature / factor | 0466003.NRHF | 0466005.NRHF | 0466002.NRHF | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1206 | 1206 | - | 1206 — same size | |
| Pinout | 2 pin | 2 pin | - | 2 pin — two-terminal fuse | |
| Voltage | 32V | 32V | - | 63V — higher voltage | |
| Current | 3A | 5A | - | 2A — lower rating | |
| Application | very fast fuse | very fast fuse | - | very fast fuse — same 466 series |
The closest listed options are same-series 0466005.NRHF or 0466002.NRHF, but neither keeps the 3A rating.