Lite-On Optocouplers

Basic insulation requires 2500Vrms minimum, reinforced insulation requires 5000Vrms. Lite-On optocouplers offer 3750-5000Vrms isolation for industrial and consumer applications.

Determine required isolation level from safety standards. Use 3750Vrms for general industrial, 5000Vrms for reinforced insulation.

Phototransistor optocouplers (LTV-8xx) are economical for slow signals. Logic gate types (LTV-3xx) offer faster switching and better noise immunity for digital communication.

Use phototransistor for DC signals and power isolation. Use logic gate for PWM, digital communication, and noisy environments.

Lite-On optocouplers are certified to UL1577, VDE0884, and CQC standards. These cover isolation voltage, creepage, clearance, and safety requirements for global markets.

Verify required certifications for target market. Certificates available upon request from BeiLuo Electronics.

CTR varies with temperature - typically increasing at lower temperatures and decreasing at higher temperatures. Design for worst-case CTR over the full operating temperature range with adequate margin.

Design with 50-100% safety margin on CTR for reliable operation across temperature. Contact FAE for detailed CTR curves.

Common applications include PLC I/O isolation, motor drive signal isolation, power supply feedback, industrial communication interfaces, and automotive signal isolation.

Select optocoupler type based on signal speed and isolation requirements for your specific application.