6N138类似电子元器件：

• 6N135
  • Optocoupler. 1 Mbit/s High-Speed Transistor Output; GaAsP Input
• 6N136
  • Optocoupler. 1 Mbit/s High-Speed Transistor Output; GaAsP Input
• 6N137
  • Optocoupler. 10 Mbit/s High-Speed Logic Gate Output; GaAsP Input
• 6N138
  • Optocoupler. High Gain Split Darlington Output; GaAsP Input