MOC3163M

Triac, SCR Output Optoisolators Overview

The onsemi MOC3163M is a single-channel Triac and SCR output optocoupler designed for interfacing logic systems with AC line-powered devices. It features an integrated zero-crossing circuit to minimize electromagnetic interference during switching. The device provides electrical isolation with a rated insulation voltage of 5250 Vrms. Key electrical parameters include a forward current (If) of 60 mA, a forward voltage (Vf) of 1.3 V, and a power dissipation (Pd) of 250 mW. The output triac supports a peak repetitive off-state voltage (VDRM) of 600 V and has a maximum trigger current of 5 mA. It operates within a temperature range of -40°C to +85°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrated zero-crossing detection circuitry for low-noise switching
• High isolation voltage capability for safety-critical applications
• Single-channel configuration for compact design
• Robust output stage suitable for inductive loads

Triac, SCR Output Optoisolators Applications

• Solid state relays
• Industrial motor control systems
• Solenoid driver circuits
• Consumer appliance control interfaces

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct packaging and variant selection. Confirm that the component meets required regulatory standards such as UL 1577 or IEC 60747-5-5 for your specific application environment. Cross-reference part numbers carefully, as naming conventions may have evolved following corporate integrations.

Triac, SCR Output Optoisolators Selection Notes

Select this component when zero-crossing switching is required to reduce electrical noise in AC control applications. Ensure the load current does not exceed the output triac's ratings and that the input drive current remains within the specified 60 mA limit. Verify that the 600 V blocking voltage is sufficient for the target AC line voltage. Consider the PDIP-6 package constraints for thermal management and PCB layout.

Triac, SCR Output Optoisolators Part Context

This device belongs to the MOC series of optocouplers from onsemi, specifically engineered for AC power control. It serves as a bridge between low-voltage digital logic and high-voltage AC loads. The integration of zero-crossing technology distinguishes it from random-phase variants, making it ideal for applications where switching timing relative to the AC waveform is critical for performance and compliance.

Triac, SCR Output Optoisolators Replacement Considerations

Check for direct pin-compatible substitutes within the same MOC family, such as the MOC3063M for random-phase operation if zero-crossing is not needed. Verify equivalent isolation voltages and trigger currents when considering alternatives from other manufacturers. Ensure any replacement maintains the required DIP-6 footprint and thermal characteristics.