| 649521 | HCPL0731V | 8-Pin SOIC Dual-Channel Low Current High Gain Split Darlington Output Optocoupler | Fairchild Semiconductor |
| 649522 | HCPL0738 | High Speed CMOS Optocoupler | Agilent (Hewlett-Packard) |
| 649523 | HCPL2201 | Very High CMR, Wide VCC Logic Gate Optocouplers | Agilent (Hewlett-Packard) |
| 649524 | HCPL2232 | Very High CMR, Wide VCC Logic Gate Optocouplers | Agilent (Hewlett-Packard) |
| 649525 | HCPL2300 | 8 MBd Low Input Current Optocoupler | Agilent (Hewlett-Packard) |
| 649526 | HCPL2400 | 20 MBd High CMR Logic Gate Optocouplers | Agilent (Hewlett-Packard) |
| 649527 | HCPL2411 | 20M Baud High CMR Logic Gate Optocoupler | Agilent (Hewlett-Packard) |
| 649528 | HCPL2502 | -0.5 to 15 V, 16 mA, high-speed transistor optocoupler | General Instruments |
| 649529 | HCPL2503 | 8-Pin DIP 1 Mbit/s Single-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649530 | HCPL2503 | -0.5 to 15 V, 8 mA, high-speed transistor optocoupler | General Instruments |
| 649531 | HCPL2503S | 8-Pin DIP 1 Mbit/s Single-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649532 | HCPL2503SD | 8-Pin DIP 1 Mbit/s Single-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649533 | HCPL2503SDV | 8-Pin DIP 1 Mbit/s Single-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649534 | HCPL2503SV | 8-Pin DIP 1 Mbit/s Single-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649535 | HCPL2503V | 8-Pin DIP 1 Mbit/s Single-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649536 | HCPL2503W | 8-Pin DIP 1 Mbit/s Single-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649537 | HCPL2503WV | 8-Pin DIP 1 Mbit/s Single-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649538 | HCPL2530 | Dual Channel/ High Speed Optocouplers | Agilent (Hewlett-Packard) |
| 649539 | HCPL2530 | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
|
| 649540 | HCPL2530 | -0.5 to 15 V, dual high-speed transistor optocoupler | General Instruments |
| 649541 | HCPL2530 | Optocoupler/Optoisolator 8-PDIP | Texas Instruments |
| 649542 | HCPL2530S | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649543 | HCPL2530SD | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649544 | HCPL2530SDV | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649545 | HCPL2530SV | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649546 | HCPL2530V | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649547 | HCPL2530W | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649548 | HCPL2530WV | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649549 | HCPL2531 | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649550 | HCPL2531 | -0.5 to 15 V, dual high-speed transistor optocoupler | General Instruments |
| 649551 | HCPL2531 | 8 Pin 2-Channel Optocoupler 8-PDIP | Texas Instruments |
| 649552 | HCPL2531S | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649553 | HCPL2531SD | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649554 | HCPL2531SDV | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649555 | HCPL2531SV | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649556 | HCPL2531V | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649557 | HCPL2531W | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649558 | HCPL2531WV | 8-Pin DIP 1Mbit/s Dual-Channel High Speed Transistor Output Optocoupler | Fairchild Semiconductor |
| 649559 | HCPL2601 | High CMR, High Speed TTL Compatible Optocouplers | Agilent (Hewlett-Packard) |
| 649560 | HCPL2601 | 8-Pin DIP 10 Mbit/s Single-Channel High Speed Logic Gate Output Optocoupler | Fairchild Semiconductor |
