- 2N4998
- Api Electronics Group
- 5 A, 80 V, NPN, Si, POWER TRANSISTOR, TO-111
- 2N4998
- Api Electronics, Inc.
- Short form transistor data
- 2N4998
- Diode Transistor Co., Inc.
- Transistor Short Form Data
- 2N4998
- Silicon Transistor Corp.
- Low Frequency Silicon Power Transistor
- 2N4998
- General Transistor Corp.
- NPN Power Transistors
- 2N4998
- Microsemi Corp.
- 2 A, 80 V, NPN, Si, POWER TRANSISTOR
- 2N4998
- Pirgo Electronics, Inc.
- 5 Amp NPN Silicon Transistors
- 2N4998
- Ppc Products Corporation
- Transistor Short Form Data
- 2N4998
- Semicoa Semiconductor
- NPN Silicon Power Transistor Selection Guide
- 2N4998
- Solidev Semiconductors
- Solid State Products (Transistor Guide)
- 2N4998
- Solitron Devices, Inc.
- 2 A, 80 V, NPN, Si, POWER TRANSISTOR, TO-59
- 2N4998
- Solid State Devices, Inc.
- Silicon NPN Transistors
- 2N4998
- Texas Instruments
- Discrete Devices 1978
- 2N4998
- General Diode
- Transistor Selection Guide