- 2N1990
- Advanced Semiconductor, Inc.
- Silicon Transistor Selection Guide
- 2N1990
- Thomson-csf
- Shortform Semiconductor Catalogue 1982
- 2N1990
- Continental Device India Limited
- Semiconductor Device Data Book 1996
- 2N1990
- Central Semiconductor Corp.
- 60 V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-39
- 2N1990LEADFREE
- Central Semiconductor Corp.
- 60 V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-39
- 2N1990
- Crimson Semiconductor
- Transistor Selection Guide
- 2N1990
- Micro Electronics
- Semiconductor Devices
- 2N1990
- Raytheon Company
- Selection Guide 1977
- 2N1990
- Semitronics Corp.
- Metal Can Transistors - Silicon Small Signal Transistors
- 2N1990
- Sgs-thomson
- Transistor Datasheet
- 2N1990R
- Sgs-thomson
- Transistor Datasheet