| Parameters | 
                                                                                                            
                                            | Mfr | Littelfuse Inc. | 
                                                                            
                                            | Series | POLY-FUSE®, 1812L | 
                                                                            
                                            | Package | Tape & Reel (TR) | 
                                                                            
                                            | Product Status | Active | 
                                                                            
                                            | Type | Polymeric | 
                                                                            
                                            | Voltage - Max | 8V | 
                                                                            
                                            | Current - Max | 100 A | 
                                                                            
                                            | Current - Hold (Ih) (Max) | 1.1 A | 
                                                                            
                                            | Current - Trip (It) | 2.2 A | 
                                                                            
                                            | Time to Trip | 300 ms | 
                                                                            
                                            | Resistance - Initial (Ri) (Min) | 40 mOhms | 
                                                                            
                                            | Resistance - Post Trip (R1) (Max) | 210 mOhms | 
                                                                            
                                            | Operating Temperature | -40°C ~ 85°C | 
                                                                            
                                            | Ratings | - | 
                                                                            
                                            | Mounting Type | Surface Mount | 
                                                                            
                                            | Package / Case | 1812 (4532 Metric), Concave | 
                                                                            
                                            | Size / Dimension | 0.179" L x 0.128" W (4.55mm x 3.24mm) | 
                                                                            
                                            | Height - Seated (Max) | - | 
                                                                            
                                            | Thickness (Max) | 0.028" (0.71mm) | 
                                                                            
                                            | Lead Spacing | - | 
                                                                            
                                            | Approval Agency | cURus, TUV | 
                                                                            
                                            | RoHS Status | ROHS3 Compliant | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                            
                                            | REACH Status | REACH Unaffected | 
                                                                            
                                            | ECCN | EAR99 | 
                                                                            
                                            | HTSUS | 8533.40.8070 | 
                                                                            
                                            | Standard Package | 2,000 | 
                                                                                                    
                            
                         
                                                Polymeric PTC Resettable Fuse 8V 1.1 A Ih Surface Mount 1812 (4532 Metric), Concave