SFH617A-3 optocoupler

The SFH617A-3 is an optocoupler device that integrates an infrared emitting diode and a phototransistor in a compact 4-pin DIP package. It is designed to provide electrical isolation and signal transmission between input and output circuits, particularly in applications requiring noise immunity and voltage isolation.

Key Features:

• Optically coupled isolator
• Infrared emitting diode (LED) and phototransistor
• High isolation voltage: 5,000 Vrms (minimum)
• Low input current requirement
• High current transfer ratio (CTR)
• Fast switching speed
• Low coupling capacitance
• RoHS compliant

Technical Specifications:

• Package Type: 4-pin DIP
• Isolation Voltage: 5,000 Vrms (minimum)
• Forward Voltage (VF): Typically around 1.2V at 20mA forward current
• Collector-Emitter Voltage (VCEO): 30V
• Power Dissipation (PD): 200mW
• Operating Temperature Range (TOPR): -55°C to +100°C
• Storage Temperature Range (TSTG): -55°C to +125°C
• Soldering Temperature (TSOL): 260°C for 10 seconds

Applications:

• Signal Isolation: Provides electrical isolation in control and communication systems.
• Voltage Level Shifting: Enables interfacing between circuits with different voltage potentials.
• Noise Immunity: Suppresses noise and interference in sensitive electronic circuits.
• Switching Power Supplies: Controls feedback signals and voltage regulation.
• Microcontroller Interface: Interfaces microcontrollers with high-voltage circuits safely.

Datasheet: For detailed technical information, refer to the SFH617A-3 datasheet.