| 2SA1216 | Mospec | POWER TRANSISTORS: GENERAL PURPOSE AMPLIFIER AND LOW-FREQUENCY SWITCHING APPLICATION |
| 2SA1221 | NEC | Silicon transistor |
| 2SA1221-T | NEC | Silicon transistor |
| 2SA1222 | NEC | Silicon transistor |
| 2SA1222-T | NEC | Silicon transistor |
| 2SA1226 | NEC | Silicon transistor |
| 2SA1226-L | NEC | Silicon transistor |
| 2SA1226-T1B | NEC | Silicon transistor |
| 2SA1226-T2B | NEC | Silicon transistor |
| 2SA1245 | Toshiba | RF Bipolar Transistors |
| 2SA1246 | Sanyo | General-Purpose Transistors |
| 2SA1248 | Sanyo | General-Purpose Transistors |
| 2SA1249 | Sanyo | General-Purpose Transistors |
| 2SA1252 | Sanyo | General-Purpose Transistors |
| 2SA1253 | Sanyo | General-Purpose Transistors |
| 2SA1254 | Panasonic | Small-signal device - Small-signal transistor - High-Frequency Amplifiers and Others |
| 2SA1256 | Sanyo | High-Frequency Transistors |
| 2SA1257 | Sanyo | General-Purpose Transistors |
| 2SA1258 | Sanyo | Darlington Transistors |
| 2SA1259 | Sanyo | Darlington Transistors |