| 340481 | BUX43 | Power NPN transistor - High Voltage | SESCOSEM |
| 340482 | BUX44 | Leaded Power Transistor General Purpose | Central Semiconductor |
| 340483 | BUX44 | Bipolar NPN Device in a Hermetically sealed TO3 Metal Package | SemeLAB |
| 340484 | BUX44 | NPN Power Transistor triple diffused - Fast Switching | SESCOSEM |
| 340485 | BUX44 | Power NPN transistor - High Voltage | SESCOSEM |
| 340486 | BUX45 | HIGH VOLTAGE HIGH POWER SILICON NPN POWER SWITCHING TRANSISTORS | General Electric Solid State |
| 340487 | BUX45 | NPN Power Transistor triple diffused - Fast Switching | SESCOSEM |
| 340488 | BUX45 | Power NPN transistor - High Voltage | SESCOSEM |
| 340489 | BUX46 | SILICON DIFFUSED POWER TRANSISTORS | Philips |
| 340490 | BUX47 | Leaded Power Transistor General Purpose | Central Semiconductor |
| 340491 | BUX47 | Silicon NPN Power Transistors TO-3 package | Savantic |
| 340492 | BUX47 | HIGH VOLTAGE POWER SWITCH | ST Microelectronics |
| 340493 | BUX47A | Trans GP BJT NPN 450V 9A 3-Pin(2+Tab) TO-3 | New Jersey Semiconductor |
| 340494 | BUX47A | Silicon NPN Power Transistors TO-3 package | Savantic |
| 340495 | BUX48 | Leaded Power Transistor General Purpose | Central Semiconductor |
| 340496 | BUX48 | POWER TRANSISTORS(15A,400-450V,175W) | MOSPEC Semiconductor |
| 340497 | BUX48 | SWITCHMODE II Series NPN Silicon Power Transistors | Motorola |
| 340498 | BUX48 | SITCHMODE II Series NPN Silicon Power Transistors | ON Semiconductor |
| 340499 | BUX48 | Silicon NPN Power Transistors TO-3 package | Savantic |
|
| 340500 | BUX48 | HIGH POWER NPN SILICON TRANSISTORS | SGS Thomson Microelectronics |
| 340501 | BUX48 | HIGH POWER NPN SILICON TRANSISTORS | ST Microelectronics |
| 340502 | BUX48-D | SWITCHMODE - II Series NPN Silicon Power Transistors | ON Semiconductor |
| 340503 | BUX48A | POWER TRANSISTORS(15A,400-450V,175W) | MOSPEC Semiconductor |
| 340504 | BUX48A | SWITCHMODE II Series NPN Silicon Power Transistors | Motorola |
| 340505 | BUX48A | SITCHMODE II Series NPN Silicon Power Transistors | ON Semiconductor |
| 340506 | BUX48A | Silicon NPN Power Transistors TO-3 package | Savantic |
| 340507 | BUX48A | HIGH POWER NPN SILICON TRANSISTORS | SGS Thomson Microelectronics |
| 340508 | BUX48A | HIGH POWER NPN SILICON TRANSISTORS | ST Microelectronics |
| 340509 | BUX48B | Silicon NPN Power Transistors TO-3 package | Savantic |
| 340510 | BUX48C | Silicon NPN Power Transistors TO-3 package | Savantic |
| 340511 | BUX48C | HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTORS | SGS Thomson Microelectronics |
| 340512 | BUX48C | HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTORS | ST Microelectronics |
| 340513 | BUX49 | Bipolar NPN Device in a Hermetically sealed TO39 Metal Package | SemeLAB |
| 340514 | BUX49 | Power NPN transistor Triple Diffused - Fast switching | SESCOSEM |
| 340515 | BUX50 | Bipolar NPN Device in a Hermetically sealed TO39 Metal Package. | SemeLAB |
| 340516 | BUX50 | Power NPN transistor Triple Diffused - Fast switching | SESCOSEM |
| 340517 | BUX51 | BJT | New Jersey Semiconductor |
| 340518 | BUX51 | NPN SILICON TRANSISTOR | SemeLAB |
| 340519 | BUX51 | NPN Power Transistor - High Voltage | SESCOSEM |
| 340520 | BUX51N | Power NPN transistor Triple Diffused - Fast switching | SESCOSEM |
