- 2N5559
- Api Electronics Group
- 10 A, 120 V, NPN, Si, POWER TRANSISTOR, TO-3
- 2N5559
- Api Electronics, Inc.
- Short form transistor data
- 2N5559
- Silicon Transistor Corp.
- Low Frequency Silicon Power Transistor
- 2N5559
- Solidev Semiconductors
- Solid State Products (Transistor Guide)