The SFH609-2 is a high-isolation single channel optocoupler. It consists of an infrared emitting diode optically coupled to a silicon planar phototransistor, providing electrical isolation between input and output circuits. The SFH609 series are widely used in applications requiring safe electrical isolation from high voltage circuits.

Applications

• Switch Mode Power Supplies (SMPS)
• Programmable Logic Controllers (PLC)
• Industrial Control Systems
• Motor Control
• Data Transmission
• Telecommunication Equipment

Features

• High Isolation Voltage (up to 5.3 kV RMS)
• High Current Transfer Ratio (CTR)
• Low Saturation Voltage
• Wide Operating Temperature Range
• Creepage Distance > 8 mm
• Pb-free and RoHS Compliant

Benefits

• Enhanced safety due to high isolation voltage
• Improved signal transfer efficiency with high CTR
• Reduced power consumption with low saturation voltage
• Reliable operation in harsh industrial environments
• Compliance with environmental regulations

Additional Details

The SFH609-2 has a typical CTR range of 63-125%. The forward voltage of the input diode is typically 1.25V, and the collector-emitter breakdown voltage of the output transistor is typically 70V. The isolation test voltage is 5.3 kV RMS for 1 minute. This optocoupler is available in a DIP-4 package. It is designed to meet international safety standards such as UL, CSA, and VDE. Detailed electrical characteristics, timing diagrams, and safety certifications can be found in the product datasheet.