
Home / Products / Circuit Protection / PTC Resettable Fuses / SRP420F

| Part Number | SRP420F | 
| Datasheet | SRP420F datasheet | 
| Description | PTC RESET FUSE 30V 4.2A STRAP | 
| Manufacturer | Littelfuse Inc. | 
| Series | PolySwitch®, SRP | 
| Part Status | Active | 
| Type | Polymeric | 
| Voltage - Max | 30V | 
| Current - Max | 100A | 
| Current - Hold (Ih) (Max) | 4.2A | 
| Current - Trip (It) | 7.6A | 
| Time to Trip | 6s | 
| Resistance - Initial (Ri) (Min) | 12 mOhms | 
| Resistance - Post Trip (R1) (Max) | 40 mOhms | 
| Resistance - 25°C (Typ) | - | 
| Operating Temperature | -40°C ~ 85°C | 
| Ratings | - | 
| Mounting Type | User Defined | 
| Package / Case | Strap | 
| Size / Dimension | 1.240" L x 0.522" W (31.50mm x 13.25mm) | 
| Height - Seated (Max) | - | 
| Thickness (Max) | 0.043" (1.10mm) | 
| Lead Spacing | - |