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| Part Number | TRF250-183U | TRF250-183US | TRF250-183 | TRF250-183S |
|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Active | Active | Active | Active |
| Type | Polymeric | Polymeric | Polymeric | Polymeric |
| Voltage - Max | 100V (250V Int) | 100V (250V Int) | 100V (250V Int) | 100V (250V Int) |
| Current - Max | 10 A | 10 A | 10 A | 10 A |
| Current - Hold (Ih) (Max) | 183 mA | 183 mA | 183 mA | 183 mA |
| Current - Trip (It) | 685 mA | 685 mA | 685 mA | 685 mA |
| Time to Trip | 1.8 s | 1.8 s | 1.8 s | 1.8 s |
| Resistance - Initial (Ri) (Min) | 800 mOhms | 800 mOhms | 800 mOhms | 800 mOhms |
| Resistance - Post Trip (R1) (Max) | 3.4 Ohms | 3.4 Ohms | 3.4 Ohms | 3.4 Ohms |
| Resistance - 25°C (Typ) | - | - | - | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Ratings | - | - | - | - |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | Radial, Disc | Radial, Disc | Radial, Disc | Radial, Disc |
| Size / Dimension | 0.256" Dia x 0.118" T (6.50mm x 3.00mm) | 0.256" Dia x 0.118" T (6.50mm x 3.00mm) | 0.295" Dia x 0.161" T (7.50mm x 4.10mm) | 0.295" Dia x 0.150" T (7.50mm x 3.80mm) |
| Height - Seated (Max) | 0.394" (10.00mm) | 0.256" (6.50mm) | 0.413" (10.50mm) | 0.374" (9.50mm) |
| Thickness (Max) | - | - | - | - |
| Lead Spacing | 0.197" (5.00mm) | 0.197" (5.00mm) | 0.197" (5.00mm) | 0.197" (5.00mm) |
