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| Part Number | TCF250-120T-B-0.5 | TRF250-120T-B-0.5 | TCF250-100T-B-0.5 |
|---|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | Littelfuse Inc. |
| Product Status | Active | Active | Active |
| Type | Polymeric | Polymeric | Polymeric |
| Voltage - Max | 60V (250V Int) | 60V (250V Int) | 60V (250V Int) |
| Current - Max | 3 A | 3 A | 3 A |
| Current - Hold (Ih) (Max) | 120 mA | 120 mA | 90 mA |
| Current - Trip (It) | 240 mA | 240 mA | 150 mA |
| Time to Trip | 600 ms | 1.2 s | 200 ms |
| Resistance - Initial (Ri) (Min) | 6.3 Ohms | 7 Ohms | 14 Ohms |
| Resistance - Post Trip (R1) (Max) | 18 Ohms | 16 Ohms | 24 Ohms |
| Resistance - 25°C (Typ) | - | - | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Ratings | - | - | - |
| Mounting Type | Surface Mount | Through Hole | Surface Mount |
| Package / Case | Nonstandard SMD | Radial, Disc | Nonstandard SMD |
| Size / Dimension | 0.217" L x 0.217" W (5.50mm x 5.50mm) | 0.236" L x 0.150" W (6.00mm x 3.80mm) | 0.187" L x 0.187" W (4.75mm x 4.75mm) |
| Height - Seated (Max) | - | 0.394" (10.00mm) | - |
| Thickness (Max) | 0.091" (2.30mm) | - | 0.091" (2.30mm) |
| Lead Spacing | - | 0.197" (5.00mm) | - |
