| Part Number | LVR055S | LVR075S | 
|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | 
| Category | PTC Resettable Fuses | PTC Resettable Fuses | 
|   |   | |
| Product Status | Active | Obsolete | 
| Type | Polymeric | Polymeric | 
| Voltage - Max | 240V (265V Int) | 240V (265V Int) | 
| Current - Max | 7 A | 7.5 A | 
| Current - Hold (Ih) (Max) | 550 mA | 750 mA | 
| Current - Trip (It) | 1.25 A | 1.5 A | 
| Time to Trip | 26 s | 18 s | 
| Resistance - Initial (Ri) (Min) | 450 mOhms | 316 mOhms | 
| Resistance - Post Trip (R1) (Max) | 1.45 Ohms | 839 mOhms | 
| Resistance - 25°C (Typ) | - | - | 
| Operating Temperature | -20°C ~ 85°C | -20°C ~ 85°C | 
| Ratings | - | - | 
| Mounting Type | Through Hole | Through Hole | 
| Package / Case | Radial, Disc | Radial, Disc | 
| Size / Dimension | 0.551" L x 0.161" W (14.00mm x 4.10mm) | 0.450" L x 0.189" W (11.43mm x 4.80mm) | 
| Height - Seated (Max) | 0.854" (21.70mm) | 0.921" (23.40mm) | 
| Thickness (Max) | - | - | 
| Lead Spacing | 0.200" (5.08mm) | 0.200" (5.08mm) |