| Part Number | TRF250-183 | TRF250-184 | 
|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | 
| Category | PTC Resettable Fuses | PTC Resettable Fuses | 
|   |   | |
| Product Status | Active | Active | 
| Type | Polymeric | Polymeric | 
| Voltage - Max | 100V (250V Int) | 100V (250V Int) | 
| Current - Max | 10 A | 10 A | 
| Current - Hold (Ih) (Max) | 183 mA | 184 mA | 
| Current - Trip (It) | 685 mA | 1 A | 
| Time to Trip | 1.8 s | 1.3 s | 
| Resistance - Initial (Ri) (Min) | 800 mOhms | 1.2 Ohms | 
| Resistance - Post Trip (R1) (Max) | 3.4 Ohms | 3.1 Ohms | 
| Resistance - 25°C (Typ) | - | - | 
| Operating Temperature | -40°C ~ 85°C | 0°C ~ 85°C | 
| Ratings | - | - | 
| Mounting Type | Through Hole | Through Hole | 
| Package / Case | Radial, Disc | Radial, Disc | 
| Size / Dimension | 0.295" Dia x 0.161" T (7.50mm x 4.10mm) | 0.303" Dia x 0.181" T (7.70mm x 4.60mm) | 
| Height - Seated (Max) | 0.413" (10.50mm) | 0.413" (10.50mm) | 
| Thickness (Max) | - | - | 
| Lead Spacing | 0.197" (5.00mm) | 0.197" (5.00mm) |