MOC3020S-TA1

Triac, SCR Output Optoisolators Overview

The Lite-On MOC3020S-TA1 is a surface-mount optocoupler featuring a single channel with a phototriac output. It utilizes a SMD-6 (SOP-6) package and operates without a zero-crossing circuit, making it suitable for random-phase AC load control. Key electrical parameters include a maximum forward voltage of 1.15V, an isolation voltage of 5000 Vrms, and a peak off-state voltage (VDRM) of 400V. The device supports a maximum input current of 50mA and functions within a temperature range of -40°C to +100°C.

Triac, SCR Output Optoisolators Feature Summary

• Integrates a gallium arsenide infrared LED emitter with a sensitive triac detector for efficient signal transmission.
• Designed for random-phase triggering applications in AC power control circuits.
• Provides high isolation capability between input and output sides for safety compliance.

Triac, SCR Output Optoisolators Applications

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

Triac, SCR Output Optoisolators Procurement Notes

Verify the specific suffix TA1 to confirm the tape-and-reel packaging format required for automated assembly processes. Ensure compatibility with SOP-6 footprint dimensions during PCB layout. Confirm that the absence of a zero-crossing feature aligns with the intended random-phase switching requirements of the design.

Triac, SCR Output Optoisolators Selection Notes

Select this component when random-phase AC switching is required rather than zero-crossing behavior. The 400V rating suits low-voltage AC loads. Consider the SMD-6 package constraints for space-limited designs. Verify thermal management needs given the 330mW power dissipation limit at elevated temperatures.

Triac, SCR Output Optoisolators Part Context

This part belongs to the MOC30 series of triac-output optocouplers manufactured by Lite-On. It shares functional similarities with other members like the MOC3021 and MOC3022 but differs in specific internal characteristics such as gate trigger sensitivity and voltage ratings. The series is widely used in industrial control and consumer electronics for isolating low-voltage control signals from high-voltage AC lines.

Triac, SCR Output Optoisolators Replacement Considerations

Potential substitutes include MOC3021S-TA1 and MOC3022S-TA1. Verify pinout compatibility and ensure the replacement maintains the non-zero-crossing characteristic if random phase firing is critical. Check that the substitute offers equivalent isolation voltage and peak off-state voltage ratings.