2pcs: PC817 [SMD]- EL817 - PC817 SOP-4 SMD High Density Photocoupler

The EL817 / PC817 are high-density optocouplers housed in a compact SOP-4 surface-mount package. Each device integrates an infrared LED optically coupled to a phototransistor, providing reliable signal isolation between input and output circuits. These optocouplers are ideal for applications requiring electrical isolation, such as microcontroller interfaces, switching power supplies, and industrial control systems.

Key Features & Benefits:

• High Isolation Voltage: Provides electrical isolation up to 5,000 Vrms between input and output

• Compact SOP-4 Package: Space-saving design suitable for surface-mount applications

• Wide CTR Range: Current Transfer Ratio (CTR) ranging from 50% to 600% ensures efficient signal coupling

• Low Input Current: Operates efficiently with low LED forward current, reducing power consumption

• Reliable Performance: Designed for consistent operation across a wide temperature range

Technical Specifications:

• Package Type: SOP-4 (Surface-Mount Device)

• Input Type: Infrared LED

• Output Type: NPN Phototransistor

• Isolation Voltage: 5,000 Vrms

• CTR (Current Transfer Ratio): 50% to 600% at IF = 5mA, VCE = 5V

• LED Forward Voltage: 1.2V to 1.4V

• Collector-Emitter Voltage (VCEO): 35V

• Operating Temperature Range: -55°C to +110°C

• Compliance: RoHS compliant

Applications:

• Microcontroller signal isolation

• Switching power supplies

• Signal transmission between circuits of different potentials

• Industrial automation systems

• Consumer electronics