| Parameters | 
                                                                                                            
                                        | Mfr | Littelfuse Inc. | 
                                                                        
                                        | Series | Automotive, AEC-Q101, SZ1SMB | 
                                                                        
                                        | Package | Tape & Reel (TR) | 
                                                                        
                                        | Product Status | Active | 
                                                                        
                                        | Type | Zener | 
                                                                        
                                        | Unidirectional Channels | 1 | 
                                                                        
                                        | Voltage - Reverse Standoff (Typ) | 20V | 
                                                                        
                                        | Voltage - Breakdown (Min) | 22.2V | 
                                                                        
                                        | Voltage - Clamping (Max) @ Ipp | 32.4V | 
                                                                        
                                        | Current - Peak Pulse (10/1000µs) | 18.5A | 
                                                                        
                                        | Power - Peak Pulse | 600W | 
                                                                        
                                        | Power Line Protection | No | 
                                                                        
                                        | Applications | Automotive | 
                                                                        
                                        | Capacitance @ Frequency | 790pF @ 1MHz | 
                                                                        
                                        | Operating Temperature | -65°C ~ 150°C (TJ) | 
                                                                        
                                        | Mounting Type | Surface Mount | 
                                                                        
                                        | Package / Case | DO-214AA, SMB | 
                                                                        
                                        | Supplier Device Package | SMB | 
                                                                        
                                        | Base Product Number | 1SMB | 
                                                                        
                                        | RoHS Status | ROHS3 Compliant | 
                                                                        
                                        | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                        
                                        | REACH Status | REACH Unaffected | 
                                                                        
                                        | ECCN | EAR99 | 
                                                                        
                                        | HTSUS | 8541.10.0080 | 
                                                                        
                                        | Other Names | 18-SZ1SMB20AT3GTR | 
                                                                        
                                        | Standard Package | 2,500 | 
                                                                                                        
                            
                         
                                                32.4V Clamp 18.5A Ipp Tvs Diode Surface Mount SMB