The CH300 from ISOCOM is a Space Qualified Optocoupler with Forward Voltage 1.5 V, Continuous Current 15 mA, Collector-Emitter Dark Current 100 uA, Collector-Emitter Saturation Voltage 0.25 V, Emitter-Collector Breakdown Voltage 30 V. Tags: Through Hole. More details for CH300 can be seen below.