Professional IC Distribution & Technical Solutions

The EL817S1(A)(TU)-F is a photocoupler (optoisolator) manufactured by EVERLIGHT. Below are its key specifications, descriptions, and features:

Specifications:

• Type: Phototransistor Optocoupler
• Isolation Voltage: 5,000Vrms (min)
• Collector-Emitter Voltage (VCEO): 80V
• Emitter-Collector Voltage (VECO): 6V
• Collector Current (IC): 50mA (max)
• Current Transfer Ratio (CTR): 50-600% (at IF = 5mA, VCE = 5V)
• Input Forward Current (IF): 60mA (max)
• Forward Voltage (VF): 1.2V (typ) at IF = 5mA
• Response Time (tr/tf): 4μs / 3μs (typ)
• Operating Temperature Range: -55°C to +110°C
• Package: 4-pin DIP (SMD-compatible)

Descriptions:

• The EL817S1(A)(TU)-F is a single-channel phototransistor optocoupler designed for signal isolation in various electronic circuits.
• It provides high voltage isolation between input and output, making it suitable for noise suppression and safety applications.
• The device features a GaAs infrared LED paired with a silicon phototransistor for reliable signal transmission.

Features:

• High isolation voltage (5kVrms)
• Compact and reliable DIP-4 package
• Wide operating temperature range
• Lead-free and RoHS compliant
• Suitable for high-speed logic interfacing
• Low power consumption

This optocoupler is commonly used in power supplies, industrial controls, PLCs, and communication systems for electrical isolation.

For detailed datasheets, refer to EVERLIGHT’s official documentation.