The FT-31X0 series consist of an infrared light emitting diodes and integrated high gain, high-speed photo detectors. The device is housed in a 8 pin DIP package.
The FT-S31X0 series consist of an infrared light emitting diodes coupled to an integrated circuit with a power output stage. The photo coupler has an internal shield that provides guaranteed common-mode transient immunity of ±25 kV/μs. It is suitable for direct gate driving circuit for IGBTs or power MOSFETs.