| Model Number |
| RF1238-000 |
72R040XPR |
| Model Name |
| Littelfuse RF1238-000 |
Littelfuse 72R040XPR |
| Category |
| Resettable Fuses |
Resettable Fuses |
| Brand |
| Littelfuse |
Littelfuse |
| Description |
| 33V 1.85A 40A 3.6A SMD Resettable Fuses ROHS |
72V 400mA 40A 800mA Plugin Resettable Fuses ROHS |
| RoHS |
| Lead free / RoHS Compliant |
Lead free / RoHS Compliant |
| Unit |
| Piece |
Piece |
| Weight: |
| 0.013 grams / 0.000459 oz |
0.001 grams / 0.000035 oz |
| Package / Case |
| SMD |
Plugin |
| Package / Arrange |
| Tape & Reel (TR) |
Tape & Reel (TR) |
| Battery |
| No |
No |
| ECCN |
| EAR99 |
EAR99 |
| Operating Voltage (Max) |
| 33V |
72V |
| Hold Current |
| 1.85A |
400mA |
| Current Rating (Max) |
| 40A |
40A |
| Power Dissipation |
| - |
560mW |
| Operating Temperature |
| -40℃~+85℃ |
-40℃~+85℃ |
| Trip Current |
| 3.6A |
800mA |
| Resistance - Initial (Ri) (Min) |
| 65mΩ |
550mΩ |
| Maximum Time to Trip |
| 5s |
3.8s |
| Resistance - Post Trip (R1) (Max) |
| 165mΩ |
1.29Ω |
