| 2SA1525 | Sanyo | Transistors with Built-in Resistors |
| 2SA1526 | Sanyo | Transistors with Built-in Resistors |
| 2SA1527 | Sanyo | Transistors with Built-in Resistors |
| 2SA1528 | Sanyo | Transistors with Built-in Resistors |
| 2SA1529 | Sanyo | Transistors with Built-in Resistors |
| 2SA1531 | Panasonic | Small-signal device - Small-signal transistor - General-use Low-Frequency Amplifires |
| 2SA1531A | Panasonic | Small-signal device - Small-signal transistor - General-use Low-Frequency Amplifires |
| 2SA1532 | Panasonic | Small-signal device - Small-signal transistor - High-Frequency Amplifiers and Others |
| 2SA1533 | Panasonic | Small-signal device - Small-signal transistor - General-use Low-Frequency Amplifires |
| 2SA1534 | Panasonic | Small-signal device - Small-signal transistor - General-use Low-Frequency Amplifires |
| 2SA1534A | Panasonic | Small-signal device - Small-signal transistor - General-use Low-Frequency Amplifires |
| 2SA1535 | Panasonic | Power Device - Power Transistors - Others |
| 2SA1535A | Panasonic | Power Device - Power Transistors - Others |
| 2SA1536 | Sanyo | Video Output Transistors |
| 2SA1537 | Sanyo | Video Output Transistors |
| 2SA1538 | Sanyo | Video Output Transistors |
| 2SA1539 | Sanyo | Video Output Transistors |
| 2SA1540 | Sanyo | Video Output Transistors |
| 2SA1541 | Sanyo | Video Output Transistors |
| 2SA1544 | NEC | Silicon transistor |