MOC3031TVM

Triac, SCR Output Optoisolators Overview

The MOC3031TVM is a single-channel zero-crossing triac output optocoupler from onsemi, housed in a 6-pin DIP package. It features an internal phototriac for AC load control with built-in zero-crossing detection to minimize EMI. Key electrical parameters include a 4170 Vrms isolation voltage, a maximum forward current of 60 mA, and a peak off-state voltage of 250 V. The device operates within a temperature range of -40°C to +85°C and includes a zero-crossing voltage threshold of 20 V.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing circuitry for low electromagnetic interference switching
• High isolation voltage capability for safe control of high-voltage loads
• Dedicated phototriac output stage designed for direct AC load driving

Triac, SCR Output Optoisolators Applications

• Solid-state relay (SSR) modules
• AC motor speed control circuits
• Lighting dimmer applications

Triac, SCR Output Optoisolators Procurement Notes

Verify the obsolete status of this specific part number before finalizing designs. Confirm that the 4170Vrms isolation rating meets system safety requirements. Ensure the 250V peak off-state voltage is sufficient for the target AC line voltage. Check for available alternative series replacements if supply chain continuity is critical.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing switching is required to reduce noise in AC power control systems. The 60mA input current limit dictates the necessary drive circuit design. Consider the 250V output voltage rating to ensure compatibility with low-voltage AC loads. Verify package compatibility with existing PCB layouts requiring standard DIP-6 footprints.

Triac, SCR Output Optoisolators Part Context

This device belongs to the MOC3031M family of zero-crossing triac output optocouplers. It provides galvanic isolation between low-voltage control logic and high-voltage AC power stages. The component is designed for reliable switching of resistive and inductive loads in consumer and industrial electronics.

Triac, SCR Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not provided in the source data. Designers should consult official cross-reference lists for compatible alternatives.