| Model Number |
| RKEF400 |
LR4-550F |
| Model Name |
| Littelfuse RKEF400 |
Littelfuse LR4-550F |
| Category |
| Resettable Fuses |
Resettable Fuses |
| Brand |
| Littelfuse |
Littelfuse |
| Description |
| 60V 4A 40A 8A Plugin Resettable Fuses ROHS |
20V 5.5A 100A 10.5A - Resettable Fuses ROHS |
| RoHS |
| Lead free / RoHS Compliant |
Lead free / RoHS Compliant |
| Unit |
| Piece |
Piece |
| Weight: |
| 1.340 grams / 0.047267 oz |
0.001 grams / 0.000035 oz |
| Package / Case |
| Plugin |
- |
| Package / Arrange |
| Bag-packed |
Bag-packed |
| Battery |
| No |
No |
| ECCN |
| EAR99 |
EAR99 |
| Operating Voltage (Max) |
| 60V |
20V |
| Hold Current |
| 4A |
5.5A |
| Current Rating (Max) |
| 40A |
100A |
| Power Dissipation |
| 3.7W |
2.8W |
| Operating Temperature |
| -40℃~+85℃ |
-40℃~+85℃ |
| Trip Current |
| 8A |
10.5A |
| Resistance - Initial (Ri) (Min) |
| 14mΩ |
9mΩ |
| Maximum Time to Trip |
| 24s |
5s |
| Resistance - Post Trip (R1) (Max) |
| 60mΩ |
22mΩ |
