Professional IC Distribution & Technical Solutions

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

Specifications:

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

Description:

The EL817S1(D)(TU)-F is a high-reliability photocoupler that provides electrical isolation between input and output circuits. It consists of an infrared LED optically coupled to a phototransistor, ensuring signal transmission without direct electrical connection.

Features:

• High isolation voltage (5,000 Vrms)
• Wide CTR range (50% to 600%)
• Compact 4-pin DIP package
• Lead-free and RoHS compliant
• High-speed response time
• Reliable performance in harsh environments

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

(Note: Always refer to the official datasheet for detailed electrical characteristics and application guidelines.)