| Part Number | 2920L150DR | 2920L050DR | 
|---|---|---|
| Manufacturer | Littelfuse Inc. | Littelfuse Inc. | 
| Category | PTC Resettable Fuses | PTC Resettable Fuses | 
|   |   | |
| Product Status | Active | Active | 
| Type | Polymeric | Polymeric | 
| Voltage - Max | 33V | 60V | 
| Current - Max | 40 A | 10 A | 
| Current - Hold (Ih) (Max) | 1.5 A | 500 mA | 
| Current - Trip (It) | 3 A | 1 A | 
| Time to Trip | 2 s | 4 s | 
| Resistance - Initial (Ri) (Min) | 80 mOhms | 350 mOhms | 
| Resistance - Post Trip (R1) (Max) | 230 mOhms | 1.4 Ohms | 
| Resistance - 25°C (Typ) | - | - | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 
| Ratings | - | - | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 2920 (7351 Metric), Concave | 2920 (7351 Metric), Concave | 
| Size / Dimension | 0.289" L x 0.202" W (7.35mm x 5.12mm) | 0.289" L x 0.202" W (7.35mm x 5.12mm) | 
| Height - Seated (Max) | - | - | 
| Thickness (Max) | 0.049" (1.25mm) | 0.049" (1.25mm) | 
| Lead Spacing | - | - |