Isocom, SFH618A-4XSM NPN Phototransistor Output Optocoupler, Surface Mount, 4-Pin DIP

The SFH618 series of optically coupled isolators consist of infrared light emitting diodes and NPN silicon photo transistors in space efficient dual in line plastic packages.

Low input current 0.5mA IF
High Current Transfer Ratios (63-320% a
1mA, 32% min at 0.5mA)
High Isolation Voltage (5.3kVRMS,7.5kVPK
High BVCEO (55V min)
All electrical parameters 100% tested

Computer terminals
Industrial systems controllers
Measuring instruments
Signal transmission between systems of
different potentials and impedances