- 4N38.3S
- Fairchild Semiconductor
- Phototransistor, HIGHVAGE PHOTOTRANSISTOR OPTOCOUPLERS
- 4N38.3SD
- Fairchild Semiconductor
- Phototransistor, High Voltage Phototransistor Phototransistor, Tape and Reel
- 4N38.3SDL
- Fairchild Semiconductor Corporation
- 1 CHANNEL TRANSISTOR OUTPUT OPTOCOUPLER