MOC3081TM

Triac, SCR Output Optoisolators Overview

The MOC3081TM is a Triac output optoisolator manufactured by onsemi, designed for zero-crossing switching applications. It features a single channel with a PhotoTriac output and an integrated zero-crossing circuit to minimize electrical noise. The device provides high isolation voltage of 4170Vrms and supports a maximum forward current of 60 mA with a typical forward voltage of 1.3 V. It operates within a temperature range of -40°C to +85°C and is housed in a 6-DIP package. The component offers a static dV/dt rating of 600V/µs and a blocking voltage of 800 V.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuitry for reduced electromagnetic interference during AC load switching
• High isolation capability with 4170Vrms insulation voltage between input and output sections
• Robust triac output stage capable of handling high blocking voltages and fast transient immunity

Triac, SCR Output Optoisolators Applications

• Solid-state relay (SSR) modules for industrial control systems
• AC motor speed controllers and power regulation circuits
• Lighting dimmer switches and thermal control units

Triac, SCR Output Optoisolators Procurement Notes

Verify the obsolete status of the MOC3081TM before procurement planning. Confirm availability through authorized distributors or check for active replacement parts such as the MOC3081TVM. Ensure that any substitute components meet the required isolation voltage and package dimensions for existing designs.

Triac, SCR Output Optoisolators Selection Notes

Select this component only if legacy compatibility is required due to its obsolete status. For new designs, consider active alternatives like the MOC3081TVM which offer identical electrical specifications and pinout compatibility. Verify that the zero-crossing feature aligns with the specific noise requirements of the target application.

Triac, SCR Output Optoisolators Part Context

The MOC3081TM belongs to the MOC308x series of zero-crossing triac output optoisolators from onsemi. This series is widely recognized for providing reliable isolation in AC power control applications. The TM suffix typically denotes a specific packaging or tape-and-reel variant, though this model is currently listed as obsolete in manufacturer catalogs.

Triac, SCR Output Optoisolators Replacement Considerations

The MOC3081TVM is a confirmed active substitute with matching electrical parameters and 6-DIP packaging. Other compatible options include the MOC3081SR2M for surface-mount requirements. Verify pinout compatibility when transitioning from the obsolete TM variant.