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| Part Number | TRF250-080U | TR250-080U | TRF250-080T |
|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Active | Obsolete | Active |
| Type | Polymeric | Polymeric | Polymeric |
| Voltage - Max | 60V (250V Int) | 250V (60V Int) | 60V (250V Int) |
| Current - Max | 3 A | 3 A | 3 A |
| Current - Hold (Ih) (Max) | 80 mA | 80 mA | 80 mA |
| Current - Trip (It) | 160 mA | - | 160 mA |
| Time to Trip | 4 s | 3 s | 4 s |
| Resistance - Initial (Ri) (Min) | 14 Ohms | 14 Ohms | 15 Ohms |
| Resistance - Post Trip (R1) (Max) | 33 Ohms | 33 Ohms | 33 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 | 0.189" Dia x 0.150" T (4.80mm x 3.80mm) | 0.189" Dia x 0.150" T (4.80mm x 3.80mm) | 0.228" Dia x 0.181" T (5.80mm x 4.60mm) |
| Height - Seated (Max) | 0.366" (9.30mm) | 0.366" (9.30mm) | 0.390" (9.90mm) |
| Thickness (Max) | - | - | - |
| Lead Spacing | 0.197" (5.00mm) | 0.197" (5.00mm) | 0.197" (5.00mm) |
