Application Solutions

Cosmo provides comprehensive isolation solutions for industrial automation including transistor output photocouplers for digital signal isolation, triac output photocouplers for AC load control, and solid state relays for switching applications. Our solutions offer isolation voltages from 2500V to 5000V, ensuring reliable signal transmission in noisy industrial environments. As your authorized Cosmo distributor, we provide application guidance for PLC interfaces, motor drives, and sensor isolation.

Choose Cosmo photocouplers for reliable industrial signal isolation.

Cosmo solid state relays (SSRs) offer significant advantages over mechanical relays: no moving parts for unlimited switching life (typically >100 million operations), silent operation, fast switching (<1ms), no contact bounce or arcing, and compact size. SSRs are ideal for high-frequency switching, hazardous environments, and applications requiring long-term reliability. While mechanical relays may have lower initial cost, SSRs provide lower total cost of ownership due to extended lifespan and reduced maintenance.

Use SSRs for high-frequency switching and long-life applications.

When selecting photocouplers, consider: (1) Isolation voltage - choose 2500V for standard applications, 5000V for high-voltage or medical applications

(2) Output type - transistor for general switching, Darlington for high gain, triac for AC switching, high-speed for data communication

(3) CTR (Current Transfer Ratio) - ensure sufficient output current for your load

(4) Speed - standard types for switching, high-speed for data

(5) Package - DIP for through-hole, SOP for surface mount. Contact BeiLuo FAE team for selection guidance.

Match isolation voltage, output type, and speed to your application.

Cosmo offers automotive-qualified photocouplers and SSRs compliant with AEC-Q100 and IATF 16949 standards. Our automotive products feature extended temperature range (-40°C to +125°C), enhanced reliability, and full PPAP documentation. Key applications include battery management systems (BMS), on-board chargers, motor controllers, and HVAC systems. The KQ series photocouplers and KSR series SSRs are specifically designed for automotive use with enhanced isolation and reliability.

Choose automotive-qualified KQ and KSR series for vehicle applications.

As your authorized Cosmo distributor, BeiLuo provides comprehensive technical support including: (1) Product selection guidance based on your application requirements

(2) Application circuit design assistance

(3) PCB layout recommendations for optimal isolation

(4) Failure analysis and troubleshooting

(5) Sample provision for prototyping

(6) Competitive pricing and flexible delivery schedules. Our FAE team has extensive experience with optocoupler and relay applications across industrial, automotive, and consumer markets.

Contact BeiLuo FAE team for comprehensive Guanxi technical support.

For proper isolation design: (1) Maintain adequate creepage and clearance distances per IEC 60950/UL 1577 standards

(2) Use proper PCB layout with isolation barriers and no copper traces crossing the isolation boundary

(3) Consider transient immunity requirements for your application

(4) Ensure proper input current limiting (typically 5-20mA for LEDs)

(5) Account for CTR degradation over temperature and lifetime. Cosmo photocouplers provide 2500V-5000V isolation with UL and VDE certifications. Contact BeiLuo FAE for isolation design review.

Follow IEC standards for creepage/clearance and proper PCB layout.