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| Part Number | RKEF090 | RKEF050 |
|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Active | Active |
| Type | Polymeric | Polymeric |
| Voltage - Max | 60V | 60V |
| Current - Max | 40 A | 40 A |
| Current - Hold (Ih) (Max) | 900 mA | 500 mA |
| Current - Trip (It) | 1.8 A | 1 A |
| Time to Trip | 2 s | 800 ms |
| Resistance - Initial (Ri) (Min) | 190 mOhms | 320 mOhms |
| Resistance - Post Trip (R1) (Max) | 520 mOhms | 900 mOhms |
| Resistance - 25°C (Typ) | - | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Ratings | - | - |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | Radial, Disc | Radial, Disc |
| Size / Dimension | 0.310" L x 0.140" W (7.87mm x 3.56mm) | 0.280" L x 0.140" W (7.10mm x 3.56mm) |
| Height - Seated (Max) | 0.550" (13.97mm) | 0.450" (11.43mm) |
| Thickness (Max) | - | - |
| Lead Spacing | 0.200" (5.08mm) | 0.199" (5.05mm) |
