- 2N4040
- Thomson-csf
- Shortform Semiconductor Catalogue 1982
- 2N4040
- Ferranti Semiconductors
- Shortform Data Book 1971
- TC52N4040ECT
- Microchip Technology, Inc.
- 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
- TC52N4040ECTTR
- Microchip Technology, Inc.
- 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
- 2N4040
- Semitronics Corp.
- VHF/UHF Power Transistors / Diffused Base MESA Transistors
- 2N4040
- Solidev Semiconductors
- Solid State Products (Transistor Guide)
- 2N4040
- Texas Instruments
- The Power Semiconductor Data Book 1974
- 2N4040
- Transistor International Corporation
- Transistor Selection Guide