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| Part Number | RXEF250-1 | RXEF250-2 | RXEF050-1 |
|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Obsolete | Active | Active |
| Type | Polymeric | Polymeric | Polymeric |
| Voltage - Max | 72V | 72V | 72V |
| Current - Max | 40 A | 40 A | 40 A |
| Current - Hold (Ih) (Max) | 2.5 A | 2.5 A | 500 mA |
| Current - Trip (It) | 5 A | 5 A | 1 A |
| Time to Trip | 15.6 s | 15.6 s | 4 s |
| Resistance - Initial (Ri) (Min) | 50 mOhms | 50 mOhms | 500 mOhms |
| Resistance - Post Trip (R1) (Max) | 130 mOhms | 130 mOhms | 1.17 Ohms |
| Resistance - 25°C (Typ) | - | - | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Ratings | - | - | - |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Package / Case | Radial, Disc | Radial, Disc | Radial, Disc |
| Size / Dimension | 0.819" Dia x 0.118" T (20.80mm x 3.00mm) | 0.819" Dia x 0.118" T (20.80mm x 3.00mm) | 0.311" Dia x 0.118" T (7.90mm x 3.00mm) |
| Height - Seated (Max) | 1.000" (25.40mm) | 1.000" (25.40mm) | 0.539" (13.70mm) |
| Thickness (Max) | - | - | - |
| Lead Spacing | 0.400" (10.15mm) | 0.400" (10.15mm) | 0.199" (5.05mm) |
