- H11D1.S
- Fairchild Semiconductor
- Phototransistor, HIGHVAGE PHOTOTRANSISTOR OPTOCOUPLERS
- H11D1.SD
- Fairchild Semiconductor
- Phototransistor, High Voltage Phototransistor Phototransistor, Tape and Reel
- H11D1.SDL
- Fairchild Semiconductor Corporation
- 1 CHANNEL TRANSISTOR OUTPUT OPTOCOUPLER