VO2223A

Triac, SCR Output Optoisolators Overview

The VO2223A is a Triac and SCR Output Optocoupler manufactured by Vishay Semiconductor Opto Division. It features a Power Phototriac output with a maximum continuous output current of 1 A and an off-state voltage (VDRM) of 600 V. The device provides galvanic isolation with an insulation voltage of 5300 Vrms. It operates within a temperature range of -40°C to +85°C and has a power dissipation rating of 1.2 W. The input trigger current is specified at 10 mA, with a forward voltage of 1.4 V. The component is available in DIP-8 packages.

Triac, SCR Output Optoisolators Feature Summary

• Integrates an optically coupled phototriac driving an internal power TRIAC for high-performance switching.
• Provides robust galvanic and electrical noise isolation between input and output circuits.
• Designed without zero-crossing circuitry for flexible phase-angle control applications.

Triac, SCR Output Optoisolators Applications

• Solid-state relays
• Motor control circuits
• Lighting dimmers

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific package variant required, as the VO2223A series includes both through-hole DIP-8 and surface-mount SMD-8 options. Confirm that the non-zero-crossing characteristic aligns with the application's phase-control requirements. Ensure compatibility with the 5300 Vrms isolation rating for the intended safety standards. Check RoHS compliance status if restricted substances are a constraint.

Triac, SCR Output Optoisolators Selection Notes

Select this component when a 1 A RMS triac output is needed with high-voltage isolation capabilities. The 10 mA trigger current allows for direct interfacing with many logic families. Consider the thermal management requirements given the 1.2 W power dissipation limit. Compare against zero-crossing variants if soft-switching is preferred over immediate turn-on.

Triac, SCR Output Optoisolators Part Context

This part belongs to the VO2223 family of optocouplers from Vishay. It is distinct from the VO2223B, which typically features a higher trigger current. The VO2223A is specifically engineered for general-purpose AC power switching where rapid response is necessary, differentiating it from zero-crossing devices used for low-noise switching.

Triac, SCR Output Optoisolators Replacement Considerations

The VO2223B is a related variant within the same family but may have different trigger current specifications. Verify pinout compatibility and isolation voltage ratings before substituting. Other manufacturers offer similar 1 A triac optocouplers, but electrical parameters must be matched precisely.