MOC3042 Zero-Cross Optoisolator Triac Driver 6 Pin

Description

MOC3042 Zero-Cross Optoisolator Triac Driver 6 Pin The MOC3042 Zero-Cross Optoisolators Triac Driver 6 Pin is a zero-cross optoisolator triac driver this Meaning it has a Infra-red Light Emitting Diode (LED) inside it coupled with a TRIAC. When the LED is triggered the TRIAC is also turned on and designed for interfacing low-voltage control circuits with high-voltage AC loads. It integrates a gallium arsenide infrared emitting diode (IRED) that optically triggers a silicon bilateral switch triac, providing safe electrical isolation between input and output. The zero-crossing feature ensures switching occurs only when the AC load voltage is near zero, minimizing electrical noise, reducing inrush current, and improving overall system reliability. Packaged in a compact 6-pin DIP, the MOC3042 is widely used in AC load switching, solid-state relays, lamp dimmers, and motor control applications, offering high safety and efficient performance in industrial and consumer electronics. Features Zero-crossing triac driver for low noise switching. High isolation voltage between input and output (typically 7500 Vrms). Input LED trigger current as low as 15 mA. Compact 6-pin DIP package for easy PCB mounting. Provides 5 kV to 7.5 kV isolation resistance. Designed for interfacing logic level signals to AC loads. High static dv/dt immunity for reliable operation. Suitable for 115/230 VAC line switching applications. Low power triggering with efficient optocoupler design. UL and VDE recognized for safety compliance. Pin Configuration Pin Number Pin Name Description 1 Anode (A) Anode pin of the IR LED. Connected to logic input 2 Cathode (C) Cathode pin of the IR LED 3 NC No Connection – Cannot be used 4 Triac Main Terminal 1 One end of the Triac which is present inside the IC 5 NC No Connection – Cannot be used 6 Triac Main Terminal 2 Other end of the Triac which is present inside the IC Specifications Product Attribute Attribute Value Product Category Triac & SCR Output Optocouplers Subcategory Optocouplers Series MOC3042M Datasheet MOC3042 Mounting Style Through Hole Package / Case PDIP-6 Packaging Tube Zero-Crossing Circuit With Zero-Crossing Circuit Output Type Photo Triac Number of Channels 1 Channel Isolation Voltage 5250 Vrms If – Forward Current 60 mA Vf – Forward Voltage 1.25 V Pd – Power Dissipation 250 mW Off-State Output Voltage (VDRM) 400 V Minimum Operating Temperature -40 °C Maximum Operating Temperature +85 °C Maximum Trigger Current 10 mA Zero-Crossing Voltage 20 V Dimensions Applications Solid-state relays for AC load switching. Lamp dimmers and lighting controls. Motor speed control circuits. AC switching for resistive and inductive loads. Home appliances control (e.g., fans, heaters, ovens). Industrial automation systems. Phase control in power management circuits. Noise-sensitive AC switching applications. Safety isolation between logic circuits and high-voltage AC lines. Package Contents 1 X MOC3042 Zero-Cross Optoisolator Triac Driver 6 Pin Datasheet MOC3042

From the supplier's page.