Isocom, SFH620A-2XSM NPN Phototransistor Output Optocoupler, Surface Mount, 4-Pin DIP

The SFH620A series of optically coupled isolators consist of inverse parallel infrared light emitting diodes and NPN silicon photo transistors in space efficient dual in line plastic packages.

Low input current ±1mA IF
High Current Transfer Ratios (40-320% at ±10mA, 13% min at ±1mA)
High Isolation Voltage (5.3kVRMS,7.5kVPK)
High BVCEO (70V min)
AC or polarity insensitive input
All electrical parameters 100% tested

Computer terminals
Industrial systems controllers
Measuring instruments
Telephone sets, Telephone exchanges
Signal transmission between systems of different potentials and impedances