| 2SK1581 |  | Kexin | N-Channel MOSFET for Switching | Original | PDF | 40.49KB | 1 | 
| 2SK1581 |  | NEC | Semiconductor Selection Guide 1995 | Original | PDF | 3.25MB | 226 | 
| 2SK1581 |  | NEC | Semiconductor Selection Guide | Original | PDF | 3MB | 399 | 
| 2SK1581 |  | TY Semiconductor | N-Channel MOSFET for Switching - SOT-23 | Original | PDF | 64.65KB | 1 | 
| 2SK1581 |  | Unknown | Shortform IC and Component Datasheets (Plus Cross Reference Data) | Short Form | PDF | 122.67KB | 1 | 
| 2SK1581 |  | Unknown | FET Data Book | Scan | PDF | 105.35KB | 2 | 
| 2SK1581 |  | NEC | N-channel MOS FET | Scan | PDF | 243.06KB | 8 | 
| 2SK1581 |  | NEC | N-Channel MOS FET for Switching | Scan | PDF | 243.06KB | 8 | 
| 2SK1581-L |  | NEC | N-channel MOS FET | Scan | PDF | 243.05KB | 8 | 
| 2SK1581-T1B |  | NEC | N-channel MOS FET | Scan | PDF | 243.05KB | 8 | 
| 2SK1581-T2B |  | NEC | N-channel MOS FET | Scan | PDF | 243.05KB | 8 |