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| Part Number | 250R180TMR | 250R180MR |
|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Obsolete | Active |
| Type | Polymeric | Polymeric |
| Voltage - Max | 60V (250V Int) | 60V (250V Int) |
| Current - Max | 10 A | 10 A |
| Current - Hold (Ih) (Max) | 180 mA | 180 mA |
| Current - Trip (It) | 650 mA | 650 mA |
| Time to Trip | 21 s | 20 s |
| Resistance - Initial (Ri) (Min) | 1.4 Ohms | 800 mOhms |
| Resistance - Post Trip (R1) (Max) | 4.5 Ohms | 4 Ohms |
| 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 | 0.374" Dia x 0.181" T (9.50mm x 4.60mm) | 0.374" Dia x 0.181" T (9.50mm x 4.60mm) |
| Height - Seated (Max) | 0.472" (12.00mm) | 0.472" (12.00mm) |
| Thickness (Max) | - | - |
| Lead Spacing | 0.201" (5.10mm) | 0.201" (5.10mm) |
