M4N37 output equivalent, 6-pin dip optoisolators transistor output.
0 or 1
–800
–441
–2447 JAPAN: Nippon Motorola Ltd.; Tatsumi
–SPD
–JLDC, 6F Seibu
 .
* General Purpose Switching Circuits
* Interfacing and coupling systems of different potentials and impedances <.
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