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| Part Number | TRF250-180 | TRF250-183 | TRF250-184 | TCF250-180 | TRF250-120 |
|---|---|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Active | Active | Active | Obsolete | Active |
| Type | Polymeric | Polymeric | Polymeric | Polymeric | Polymeric |
| Voltage - Max | 100V (250V Int) | 100V (250V Int) | 100V (250V Int) | 60V (250V Int) | 60V (250V Int) |
| Current - Max | 10 A | 10 A | 10 A | 3 A | 3 A |
| Current - Hold (Ih) (Max) | 180 mA | 183 mA | 184 mA | 180 mA | 120 mA |
| Current - Trip (It) | 650 mA | 685 mA | 1 A | 380 mA | 240 mA |
| Time to Trip | 2 s | 1.8 s | 1.3 s | 3.4 s | 2.5 s |
| Resistance - Initial (Ri) (Min) | 800 mOhms | 800 mOhms | 1.2 Ohms | 1.9 Ohms | 4 Ohms |
| Resistance - Post Trip (R1) (Max) | 4 Ohms | 3.4 Ohms | 3.1 Ohms | 4.2 Ohms | 16 Ohms |
| Resistance - 25°C (Typ) | - | - | - | - | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 0°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Ratings | - | - | - | - | - |
| Mounting Type | Through Hole | Through Hole | Through Hole | Surface Mount | Through Hole |
| Package / Case | Radial, Disc | Radial, Disc | Radial, Disc | Nonstandard SMD | Radial, Disc |
| Size / Dimension | 0.354" Dia x 0.150" T (9.00mm x 3.80mm) | 0.295" Dia x 0.161" T (7.50mm x 4.10mm) | 0.303" Dia x 0.181" T (7.70mm x 4.60mm) | 0.276" L x 0.276" W (7.00mm x 7.00mm) | 0.256" L x 0.181" W (6.50mm x 4.60mm) |
| Height - Seated (Max) | 0.472" (12.00mm) | 0.413" (10.50mm) | 0.413" (10.50mm) | - | 0.433" (11.00mm) |
| Thickness (Max) | - | - | - | 0.063" (1.60mm) | - |
| Lead Spacing | 0.197" (5.00mm) | 0.197" (5.00mm) | 0.197" (5.00mm) | - | 0.197" (5.00mm) |
