MOC3083S-TA1

Triac, SCR Output Optoisolators Overview

The MOC3083S-TA1 is a surface-mount triac output optocoupler featuring an integrated zero-crossing detection circuit. It provides electrical isolation between input and output with a rated isolation voltage of 5000Vrms. The device supports a peak repetitive off-state voltage (VDRM) of 800V and maintains a high static dv/dt rating of 800V/µs to prevent false triggering. It operates within a temperature range of -40°C to +100°C, dissipates up to 250mW, and utilizes a 6-SMD gull-wing package.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuit for reduced electromagnetic interference
• High insulation voltage capability of 5000Vrms for robust safety isolation
• Enhanced noise immunity with high static dv/dt rating of 800V/µs
• Compliant with international safety standards including UL, CSA, FIMKO, and VDE

Triac, SCR Output Optoisolators Applications

• AC motor drivers
• Solid state relays
• Lighting control systems
• Temperature control circuits

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix TA1 confirms the tape-and-reel packaging format required for automated assembly processes. Ensure the component designation matches the Lite-On Inc. manufacturer source rather than generic equivalents. Confirm that the 6-SMD gull-wing footprint aligns with the target PCB design specifications before finalizing procurement orders.

Triac, SCR Output Optoisolators Selection Notes

Select this component when surface-mount technology is required for AC switching applications. The integrated zero-crossing feature makes it suitable for minimizing electrical noise in sensitive environments. Verify that the 800V blocking voltage meets the load requirements and that the 5000Vrms isolation rating satisfies the necessary safety clearance distances for the specific application standard.

Triac, SCR Output Optoisolators Part Context

This part belongs to the MOC308x series of triac output optocouplers manufactured by Lite-On Inc. The series includes various package options such as DIP and wide-body variants. The MOC3083S-TA1 specifically denotes the surface-mount version with reel packaging, distinguishing it from through-hole or cut-tape alternatives within the same functional family.

Triac, SCR Output Optoisolators Replacement Considerations

The MOC3083SR2M from onsemi offers similar 800V performance but specifies a higher insulation voltage of 5250Vrms and a maximum operating temperature of 85°C. Verify thermal management requirements and package compatibility before substituting.