MOC3163TM

Triac, SCR Output Optoisolators Overview

The MOC3163TM is a triac and SCR output optocoupler from onsemi, designed for electrical isolation and AC load control. It features a zero-crossing circuit to minimize EMI during switching. The device operates with a DC input and provides one channel of isolation. Key electrical parameters include an insulation voltage of 4170 Vrms (with some sources citing 5250 Vrms), a forward current of 60 mA, and a peak repetitive off-state voltage of 600 V. It functions within a temperature range of -40°C to +85°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrates a zero-crossing detection circuit to reduce electromagnetic interference during turn-on.
• Provides high-voltage electrical isolation between input control circuits and AC power loads.
• Designed for direct driving of triacs and SCRs in solid-state relay applications.

Triac, SCR Output Optoisolators Applications

• Solid-state relays
• AC motor speed control
• Lighting dimmers

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix (e.g., TM vs. TVM) as it may indicate different packaging or obsolete status. Confirm current manufacturing availability through official distributors, as this part number may be discontinued. Ensure the selected variant meets the required insulation voltage ratings for your specific safety certification needs.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing switching is required to limit inrush current and noise. Compare the 600 V blocking voltage against the peak line voltage of the application. Verify that the DIP-6 package fits the PCB layout constraints. Check if the higher insulation voltage variants are necessary for reinforced isolation requirements.

Triac, SCR Output Optoisolators Part Context

This device belongs to the MOC3 series of optocouplers, which are widely used for isolating microcontrollers from mains-powered AC circuits. The series offers various configurations including zero-crossing and random-phase options. The MOC3163TM specifically targets applications requiring low EMI generation during AC load switching.

Triac, SCR Output Optoisolators Replacement Considerations

Direct substitutes include the MOC3163TVM. Verify pinout compatibility and electrical specifications before substitution. Other MOC3 series devices may serve as alternatives if zero-crossing functionality is not strictly required.