| Part Number | TRF250-180 | TCF250-180 |
|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. |
| Category | PTC Resettable Fuses | PTC Resettable Fuses |
|
|
|
| Product Status | Active | Obsolete |
| Type | Polymeric | Polymeric |
| Voltage - Max | 100V (250V Int) | 60V (250V Int) |
| Current - Max | 10 A | 3 A |
| Current - Hold (Ih) (Max) | 180 mA | 180 mA |
| Current - Trip (It) | 650 mA | 380 mA |
| Time to Trip | 2 s | 3.4 s |
| Resistance - Initial (Ri) (Min) | 800 mOhms | 1.9 Ohms |
| Resistance - Post Trip (R1) (Max) | 4 Ohms | 4.2 Ohms |
| Resistance - 25°C (Typ) | - | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Ratings | - | - |
| Mounting Type | Through Hole | Surface Mount |
| Package / Case | Radial, Disc | Nonstandard SMD |
| Size / Dimension | 0.354" Dia x 0.150" T (9.00mm x 3.80mm) | 0.276" L x 0.276" W (7.00mm x 7.00mm) |
| Height - Seated (Max) | 0.472" (12.00mm) | - |
| Thickness (Max) | - | 0.063" (1.60mm) |
| Lead Spacing | 0.197" (5.00mm) | - |