| 2SA1544-T | NEC | Silicon transistor |
| 2SA1544-T/JD | NEC | Silicon transistor |
| 2SA1544-T/JM | NEC | Silicon transistor |
| 2SA1544/JD | NEC | Silicon transistor |
| 2SA1544/JM | NEC | Silicon transistor |
| 2SA1545 | NEC | Silicon transistor |
| 2SA1545-T | NEC | Silicon transistor |
| 2SA1546 | NEC | Silicon transistor |
| 2SA1552 | Sanyo | General-Purpose Transistors |
| 2SA1553 | Mospec | POWER TRANSISTORS: GENERAL PURPOSE AMPLIFIER AND LOW-FREQUENCY SWITCHING APPLICATION |
| 2SA1562 | Sanyo | High-Gain High-VEBO Transistors |
| 2SA1566 | Renesas | Transistors>Amplifiers/Bipolar |
| 2SA1575 | Sanyo | High-Frequency Transistors |
| 2SA1580 | Sanyo | Video Output Transistors |
| 2SA1592 | Sanyo | Low-Saturation Voltage Transistors |
| 2SA1593 | Sanyo | Low-Saturation Voltage Transistors |
| 2SA1600 | Mospec | POWER TRANSISTORS: GENERAL PURPOSE AMPLIFIER AND LOW-FREQUENCY SWITCHING APPLICATION |
| 2SA1606 | Sanyo | General-Purpose Amplifier Transistors |
| 2SA1607 | Sanyo | High-Speed Switching Transistors |
| 2SA1608 | NEC | Silicon transistor |