VO2223B

Triac, SCR Output Optoisolators Overview

The VO2223B is a Triac and SCR output optocoupler manufactured by Vishay Semiconductor Opto Division. It integrates an infrared emitting diode with a power phototriac in an 8-pin DIP package. The device provides galvanic isolation with a rated insulation voltage of 5300 Vrms. Key electrical parameters include a peak off-state voltage (VDRM) of 600 V, an RMS on-state current (It RMS) of 1 A, and a maximum trigger current (IFT) of 10 mA. The forward voltage ranges from 900 mV to 1.4 V, with a maximum power dissipation of 1.2 W. Operating temperatures span from -40°C to +85°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrates an infrared LED with a high-power phototriac for efficient optical coupling
• Provides robust galvanic isolation between input and output circuits
• Features a zero-crossing-free design for flexible phase control applications

Triac, SCR Output Optoisolators Applications

• Solid-state relays
• Motor control circuits
• Lighting dimmer switches

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific ordering suffix when purchasing, as it determines the packaging format such as tubes or reels. Confirm that the DIP-8 through-hole package matches your PCB footprint requirements. Ensure the 5300 Vrms isolation rating meets your safety standards. Check the 600 V blocking voltage against your load specifications. Validate the 1 A RMS current capacity for your intended application load.

Triac, SCR Output Optoisolators Selection Notes

Select this component for applications requiring high isolation voltage and moderate current switching capabilities. The DIP-8 package facilitates through-hole mounting. Compare the 10 mA trigger current requirement with your drive circuit capabilities. Consider the thermal management needs given the 1.2 W power dissipation limit. Evaluate the absence of zero-crossing features if precise phase-angle control is necessary.

Triac, SCR Output Optoisolators Part Context

This component belongs to the VO2223 series of optocouplers designed for industrial and consumer applications. It shares functional similarities with the VO2223A but differs in specific packaging and ordering options. The series is characterized by its integrated power triac output and high isolation ratings. It serves as a standard solution for isolating low-voltage control signals from high-voltage AC loads.

Triac, SCR Output Optoisolators Replacement Considerations

• VO2223A

Triac, SCR Output Optoisolators FAQ

Does the VO2223B include a zero-crossing detection circuit?

No, the VO2223B does not feature a zero-crossing circuit, allowing for arbitrary phase control.

What is the maximum isolation voltage of the VO2223B?

The device supports an isolation test voltage of 5300 Vrms.