ISP521-4 isolators equivalent, (isp521-x) high density mounting phototransistor optically coupled isolators.
10.16 l Options :7.62 9.16 10mm lead spread - add G after part no. 4.0 3.0 Surface mount - add SM after part no. Tape&reel - add SMT&R after part no. 0.5 l High Current T.
ISP521-4 3 l Computer terminals 4 2.54 l Industrial systems controllers l Measuring instruments 5 l Signal transmission .
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