| 401CNQ040 | International Rectifier | 40V 400A Schottky Common Cathode Diode in a TO-244AB Non-Isolated package |
| 401CNQ045 | International Rectifier | 45V 400A Schottky Common Cathode Diode in a TO-244AB Non-Isolated package |
| 40220 | C&D Technologies | Toroidal Surface Mount Inductors |
| 40221 | C&D Technologies | Toroidal Surface Mount Inductors |
| 40312 | Central Semiconductor | Leaded Power Transistor General Purpose |
| 40327 | Central Semiconductor | Leaded Small Signal Transistor General Purpose |
| 40330 | C&D Technologies | Toroidal Surface Mount Inductors |
| 40331 | C&D Technologies | Toroidal Surface Mount Inductors |
| 40347 | Central Semiconductor | Leaded Small Signal Transistor General Purpose |
| 40348 | Central Semiconductor | Leaded Small Signal Transistor General Purpose |
| 403CMQ080 | International Rectifier | 80V 400A Schottky Common Cathode Diode in a TO-244AB Isolated package |
| 403CMQ100 | International Rectifier | 100V 400A Schottky Common Cathode Diode in a TO-244AB Isolated package |
| 403CNQ080 | International Rectifier | 80V 400A Schottky Common Cathode Diode in a TO-244AB Non-Isolated package |
| 403CNQ100 | International Rectifier | 100V 400A Schottky Common Cathode Diode in a TO-244AB Non-Isolated package |
| 403DMQ100 | International Rectifier | 100V 400A Schottky DOUBLER Diode in a TO-244AB Isolated package |
| 403R3 | C&D Technologies | Toroidal Surface Mount Inductors |
| 40406 | Central Semiconductor | Leaded Small Signal Transistor General Purpose |
| 40408 | Central Semiconductor | Leaded Small Signal Transistor General Purpose |
| 40412 | Central Semiconductor | Leaded Small Signal Transistor General Purpose |
| 40470 | C&D Technologies | Toroidal Surface Mount Inductors |