| 2SA1988 | NEC | PNP silicon power transistor |
| 2SA2004 | Panasonic | Power Device - Power Transistors - General-Purpose power amplification |
| 2SA2009 | Panasonic | Small-signal device - Small-signal transistor - General-use Low-Frequency Amplifires |
| 2SA2010 | Panasonic | Small-signal device - Small-signal transistor - General-use Low-Frequency Amplifires |
| 2SA2011 | Sanyo | Low-Saturation Voltage Transistors |
| 2SA2012 | Sanyo | Low-Saturation Voltage Transistors |
| 2SA2012-NMP | Sanyo | Low-Saturation Voltage Transistors |
| 2SA2013 | Sanyo | Low-Saturation Voltage Transistors |
| 2SA2014 | Sanyo | Low-Saturation Voltage Transistors |
| 2SA2014-CNC | Sanyo | Low-Saturation Voltage Transistors |
| 2SA2015 | Sanyo | Low-Saturation Voltage Transistors |
| 2SA2016 | Sanyo | Low-Saturation Voltage Transistors |
| 2SA2021 | Panasonic | Small-signal device - Small-signal transistor - General-use Low-Frequency Amplifires |
| 2SA2022 | Sanyo | Low-Saturation Voltage Transistors |
| 2SA2023 | Sanyo | Low-Saturation Voltage Transistors |
| 2SA2025 | Sanyo | Low-Saturation Voltage Transistors |
| 2SA2028 | Panasonic | Small-signal device - Small-signal transistor - General-use Low-Frequency Amplifires |
| 2SA2031 | Sanyo | General-Purpose Amplifier Transistors |
| 2SA2037 | Sanyo | Low-Saturation Voltage Transistors |
| 2SA2039 | Sanyo | Low-Saturation Voltage Transistors |