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| Part Number | RKEF135 | RKEF185 |
|---|---|---|
| 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) | 1.35 A | 1.85 A |
| Current - Trip (It) | 2.7 A | 3.7 A |
| Time to Trip | 4.5 s | 12.6 s |
| Resistance - Initial (Ri) (Min) | 110 mOhms | 60 mOhms |
| Resistance - Post Trip (R1) (Max) | 370 mOhms | 250 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 | 0.402" L x 0.150" W (10.20mm x 3.80mm) | 0.512" L x 0.150" W (13.00mm x 3.81mm) |
| Height - Seated (Max) | 0.669" (17.00mm) | 0.740" (18.80mm) |
| Thickness (Max) | - | - |
| Lead Spacing | 0.200" (5.08mm) | 0.200" (5.08mm) |
