SFH690BT

The Vishay SFH690BT is a transistor output optocoupler featuring a GaAs infrared emitting diode coupled to a silicon planar phototransistor. It is housed in a 4-pin SOP package with a 100 mil lead pitch, making it suitable for high-density mounting or space-sensitive PCBs.

Key electrical specifications include an isolation test voltage of 3750 V RMS (1 s) and a high collector emitter breakdown voltage of 70 V. The device offers a current transfer ratio (CTR) ranging from a minimum of 100% at 5mA to a maximum of 300% at 5mA. It also features a low Vce saturation voltage of 300mV and fast switching times.

Designed for reliable signal transmission, the SFH690BT operates within a temperature range of -55°C to 100°C. Its applications include PLCs and telecommunication systems where electrical isolation is critical. The surface mountable 4-SMD, Gull Wing package facilitates integration into various electronic designs.

Agency approvals include UL, cUL, BSI, CQC, and FIMKO, with options for VDE certification. The optocoupler is designed for signal transmission between two electrically separated circuits, providing essential isolation for robust system design.