| 121401 | 4N38(SHORT) | Photocoupler GaAs IRed & Photo .Transistor | TOSHIBA |
| 121402 | 4N38300 | 6-pin DIP High Voltage Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 121403 | 4N38300W | 6-pin DIP High Voltage Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 121404 | 4N383S | 6-pin DIP High Voltage Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 121405 | 4N383SD | 6-pin DIP High Voltage Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 121406 | 4N38A | Optoelectronic coupling element (Optocoupler) | TELEFUNKEN |
| 121407 | 4N38A | PHOTO TRANSISTOR (AC LINE/DIGITAL LOGIC ISOLATOR) | TOSHIBA |
| 121408 | 4N38A(SHORT) | Photocoupler GaAs IRed & Photo .Transistor | TOSHIBA |
| 121409 | 4N38M | 6-pin DIP High Voltage Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 121410 | 4N38S | 6-pin DIP High Voltage Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 121411 | 4N38SD | 6-pin DIP High Voltage Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 121412 | 4N38W | 6-pin DIP High Voltage Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 121413 | 4N39 | PHOTO SCR OPTOCOUPLERS | Fairchild Semiconductor |
| 121414 | 4N39 | PHOTO SCR OPTOCOUPLERS | QT Optoelectronics |
| 121415 | 4N39 | PHOTO SCR OPTOCOUPLER | Siemens |
| 121416 | 4N39 | Optocoupler, PhotoSCR Output, 200 V VRM, 10 A surge current | Vishay |
| 121417 | 4N39300 | 6-Pin DIP Photo SCR Output Optocoupler | Fairchild Semiconductor |
| 121418 | 4N39300W | 6-Pin DIP Photo SCR Output Optocoupler | Fairchild Semiconductor |
| 121419 | 4N393S | 6-Pin DIP Photo SCR Output Optocoupler | Fairchild Semiconductor |
|
| 121420 | 4N393SD | 6-Pin DIP Photo SCR Output Optocoupler | Fairchild Semiconductor |
| 121421 | 4N39S | 6-Pin DIP Photo SCR Output Optocoupler | Fairchild Semiconductor |
| 121422 | 4N39W | 6-Pin DIP Photo SCR Output Optocoupler | Fairchild Semiconductor |
| 121423 | 4N40 | PHOTO SCR OPTOCOUPLERS | Fairchild Semiconductor |
| 121424 | 4N40 | PHOTO SCR OPTOCOUPLERS | QT Optoelectronics |
| 121425 | 4N40300W | 6-Pin DIP Photo SCR Output Optocoupler | Fairchild Semiconductor |
| 121426 | 4N403SD | 6-Pin DIP Photo SCR Output Optocoupler | Fairchild Semiconductor |
| 121427 | 4N40S | 6-Pin DIP Photo SCR Output Optocoupler | Fairchild Semiconductor |
| 121428 | 4N40SD | 6-Pin DIP Photo SCR Output Optocoupler | Fairchild Semiconductor |
| 121429 | 4N40W | 6-Pin DIP Photo SCR Output Optocoupler | Fairchild Semiconductor |
| 121430 | 4N45 | High Gain Darlington Output Optocouplers | Agilent (Hewlett-Packard) |
| 121431 | 4N45-300 | High gain darlington output optocoupler | Agilent (Hewlett-Packard) |
| 121432 | 4N45-500 | High gain darlington output optocoupler | Agilent (Hewlett-Packard) |
| 121433 | 4N45300 | High Gain Darlington Output Optocouplers | Agilent (Hewlett-Packard) |
| 121434 | 4N45500 | High Gain Darlington Output Optocouplers | Agilent (Hewlett-Packard) |
| 121435 | 4N46 | High Gain Darlington Output Optocouplers | Agilent (Hewlett-Packard) |
| 121436 | 4N46300 | High Gain Darlington Output Optocouplers | Agilent (Hewlett-Packard) |
| 121437 | 4N46500 | High Gain Darlington Output Optocouplers | Agilent (Hewlett-Packard) |
| 121438 | 4N47 | JAN, JANTX, JANTXV, SINGLE CHANNEL OPTOCOUPLERS | Micropac Industries |
| 121439 | 4N47 | Photo-Transistor Hermetic Optocouplers | Skyworks Solutions |
| 121440 | 4N47A | JAN, JANTX, JANTXV, SINGLE CHANNEL OPTOCOUPLERS | Micropac Industries |
