VO3052

Triac, SCR Output Optoisolators Overview

The VO3052 is a non-zero crossing phototriac output optocoupler manufactured by Vishay Semiconductor Opto Division. It provides electrical isolation with a rated isolation voltage of 5300Vrms and supports a maximum repetitive peak off-state voltage of 600 V. The device features a high static dV/dt rating of 1.5 kV/µs to prevent false triggering. Key electrical parameters include a maximum DC forward current (If) of 60 mA, a typical forward voltage (Vf) of 1.2 V, and a maximum LED trigger current (Ift) of 10 mA. The triac output can handle a maximum RMS on-state current (It(RMS)) of 100 mA with a typical holding current (Ih) of 200 µA. Operating temperatures range from -55°C to 100°C.

Triac, SCR Output Optoisolators Feature Summary

• Non-zero crossing output design for general-purpose AC switching applications
• High noise immunity with a minimum static dV/dt rating of 1.5 kV/µs
• Robust insulation capability with 5300Vrms isolation voltage rating
• Wide operating temperature range suitable for industrial environments

Triac, SCR Output Optoisolators Applications

• Solid state relays
• Motor control circuits
• General purpose AC load switching

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix code (e.g., X006 for DIP, X007T for SMD) to ensure correct package type and tape/reel configuration. Confirm that the non-zero crossing characteristic aligns with the application requirements, as it differs from zero-crossing variants. Check certification marks such as CSA, cURus, or VDE if regulatory compliance is required for the end product.

Triac, SCR Output Optoisolators Selection Notes

Select this component when precise timing synchronization with the AC line zero-crossing is not required. Ensure the load current does not exceed the 100 mA RMS limit. Verify that the input drive circuit can supply sufficient current to meet the 10 mA trigger requirement under all operating conditions. Consider thermal management for the LED section if driving near maximum ratings.

Triac, SCR Output Optoisolators Part Context

The VO3052 belongs to the VO305x family of phototriac output optocouplers from Vishay. This series is designed for isolating low-voltage control circuits from higher-voltage AC power lines. Unlike zero-crossing variants, the non-zero crossing design allows for phase-angle control applications where immediate response to the input signal is necessary regardless of the AC waveform phase.

Triac, SCR Output Optoisolators Replacement Considerations

Direct replacements must match the 600 V blocking voltage, 100 mA current rating, and 5300Vrms isolation. Verify pinout compatibility for the specific package variant (DIP vs. SMD). Substitutes should also be non-zero crossing types unless the application logic is adjusted accordingly.