* Interfaces with Common Logic Families
* Input-output Coupling Capacitance < 0.5 pF
* Industry Standard Dual-in-line 6-pin Package
* Field Effect Stable .

* AC Mains Detection
* Reed Relay Driving
* Switch Mode Power Supply Feedback
* Telephone Ring Detection.

This data sheet presents five families of Infineon Industry Standard Single Channel Phototransistor Couplers. These families include the 4N25/26/27/28 types, the 4N35/36/37/38 couplers, the H11A1/A2/ A3/A4/A5, the MCT2/2E, and MCT270/271/272/273/274/27.

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