| Parameters | 
                                                                                                            
                                        | Mfr | Littelfuse Inc. | 
                                                                        
                                        | Series | KSPS | 
                                                                        
                                        | Package | Bulk | 
                                                                        
                                        | Product Status | Active | 
                                                                        
                                        | Mounting Type | Chassis Mount | 
                                                                        
                                        | Relay Type | Solid State Relay | 
                                                                        
                                        | Function | Off-Delay | 
                                                                        
                                        | Circuit | SPST-NO (1 Form A) | 
                                                                        
                                        | Delay Time | 0.1 Sec ~ 10 Sec | 
                                                                        
                                        | Contact Rating @ Voltage | - | 
                                                                        
                                        | Voltage - Supply | 12 ~ 120VDC | 
                                                                        
                                        | Termination Style | Quick Connect - 0.250" (6.3mm) | 
                                                                        
                                        | Timing Adjustment Method | Screwdriver Slot | 
                                                                        
                                        | Timing Initiate Method | Input Voltage, Trigger Signal | 
                                                                        
                                        | RoHS Status | ROHS3 Compliant | 
                                                                        
                                        | Moisture Sensitivity Level (MSL) | Not Applicable | 
                                                                        
                                        | REACH Status | REACH Unaffected | 
                                                                        
                                        | ECCN | EAR99 | 
                                                                        
                                        | HTSUS | 9107.00.8000 | 
                                                                        
                                        | Other Names | -1024-KSPSN21B | 
                                                                        
                                        | Standard Package | 10 | 
                                                                                                        
                            
                         
                                                Off-Delay Time Delay Relay SPST-NO (1 Form A) 0.1 Sec ~ 10 Sec Delay Chassis Mount