| 686521 | HMA121FR3 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686522 | HMA121FR3V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686523 | HMA121FR4 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686524 | HMA121FR4V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686525 | HMA121FV | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686526 | HMA121R1 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686527 | HMA121R1V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686528 | HMA121R2 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686529 | HMA121R2V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686530 | HMA121R3 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686531 | HMA121R3V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686532 | HMA121R4 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686533 | HMA121R4V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686534 | HMA121V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686535 | HMA124 | FULL PITCH MINI-FLAT PACKAGE 4-PIN OPTOCOUPLERS | Fairchild Semiconductor |
| 686536 | HMA124R1 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686537 | HMA124R1V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686538 | HMA124R2 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686539 | HMA124R2V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
|
| 686540 | HMA124R3 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686541 | HMA124R3V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686542 | HMA124R4 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686543 | HMA124R4V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686544 | HMA124V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686545 | HMA2701 | FULL PITCH MINI-FLAT PACKAGE 4-PIN OPTOCOUPLERS | Fairchild Semiconductor |
| 686546 | HMA2701A | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686547 | HMA2701AR1 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686548 | HMA2701AR1V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686549 | HMA2701AR2 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686550 | HMA2701AR2V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686551 | HMA2701AR3 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686552 | HMA2701AR3V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686553 | HMA2701AR4 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686554 | HMA2701AR4V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686555 | HMA2701AV | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686556 | HMA2701B | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686557 | HMA2701BR1 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686558 | HMA2701BR1V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686559 | HMA2701BR2 | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
| 686560 | HMA2701BR2V | 4-pin Full Pitch MFP Phototransistor Output Optocoupler | Fairchild Semiconductor |
