PC817 - EL817 - High Density Photocoupler transistor Optocoupler - DIP-4

The EL817 is a high-density optocoupler designed to provide optical isolation between input and output stages using an infrared LED and a silicon phototransistor. Housed in a compact DIP-4 package, it is ideal for use in signal isolation, microcontroller interfaces, switching power supplies, and industrial control systems. With reliable performance and high isolation voltage, the EL817 is a trusted choice for electronic designers and engineers.

Key Features & Benefits:

• High-Density Isolation: Ensures safe and effective signal transfer between different voltage domains

• Compact DIP-4 Package: Space-saving design suitable for through-hole PCB assembly

• Reliable Phototransistor Output: Consistent performance for digital or analog interfacing

• Low Input Current: Energy-efficient design, suitable for low-power applications

• Brand Reliability: Manufactured by Everlight, known for quality optoelectronic components

Specifications:

• Brand: Everlight

• Model: EL817

• Package Type: DIP-4

• Input Type: Infrared LED

• Output Type: NPN Phototransistor

• Isolation Voltage: 5,000 Vrms (typical)

• CTR (Current Transfer Ratio): 50% to 600% (depending on part bin)

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

• RoHS Compliant: Yes

Applications:

• Microcontroller signal isolation

• Switching power supplies

• Signal coupling in industrial control systems

• Input/output interface protection

• Consumer electronics and appliances