The HOCY215S is a SOP-4 Photo Relay consisting of an infrared LED optically coupled to a back-to-back MOSFET output stage. It provides high isolation, low leakage current, and stable on-resistance over temperature.
Features
- Normally Open (1-Form-A)
- Trigger LED current: 3 mA (max)
- Low-level off state leakage current
- Isolation voltage: 3750 Vrms (min)
- Off-state output terminal voltage: 100 V (min)
- On-state current: 350 mA (max)
- On-state resistance: 4 Ω (max)
- Compliance with Halogen free and Pb free
- EU REAH and RoHS compliant
- Safety standards
- UL 1577
- CUL CA5A
- VDE EN60747-5-5 (Option)

Applications
- Measurement and testing equipment
- Security systems
- Factory automation (FA)
- Battery management system (BMS)
- Exchange equipment
- Smart meters
- Mechanical relay replacements