MOC3052SM Triac & SCR Output Optocouplers by ON Semiconductor – Efficient AC Load Switching for Industrial and Smart Control Systems
The Triac & SCR Output Optocouplers MOC3052SM by ON Semiconductor are high-performance optocouplers designed for precise and safe control of AC loads using low-voltage digital signals. Featuring a zero-crossing detector, 5300 Vrms isolation, and low trigger current, this compact 6-pin surface-mount device is ideal for solid-state switching in automation, lighting, HVAC, and smart appliances.
In this blog, we explore specifications, applications, and benefits of Optoelectronics, Optocouplers / Photocouplers, Triac & SCR Output Optocouplers by ON Semiconductor, available now at Xon Electronics.
Technical Specifications of MOC3052SM
-
Manufacturer: ON Semiconductor
-
Part Number: MOC3052SM
-
Type: Triac Driver Optocoupler with Zero-Crossing
-
LED Trigger Current (IFT): 5 mA Max
-
Isolation Voltage: 5300 Vrms
-
Zero-Crossing Function: Yes
-
Output Type: Triac / SCR
-
Package Type: 6-Pin SMD
-
Category: Optoelectronics, Optocouplers / Photocouplers, Triac & SCR Output Optocouplers by ON Semiconductor
Engineered to offer high-speed switching, low EMI, and maximum safety, this optocoupler is essential in modern AC control applications.
Key Features of MOC3052SM
-
Zero-Crossing Detection – Minimizes switching noise and surge current
-
High Isolation (5300 Vrms) – Ensures system safety and circuit protection
-
Low Trigger Current – Enables direct control from logic-level outputs
-
Compact SMD Package – Ideal for automated assembly and space-saving layouts
-
RoHS Compliant – Environmentally safe for global designs
These features make Optoelectronics, Optocouplers / Photocouplers, Triac & SCR Output Optocouplers by ON Semiconductor an excellent choice for AC interface designs.
Applications of MOC3052SM
MOC3052SM by ON Semiconductor is widely used in:
-
HVAC systems (fan and compressor switching)
-
Lighting dimmers and control panels
-
Solid-state relays and remote switches
-
Industrial automation and programmable controllers
-
Smart home appliances and IoT-enabled devices
Designers around the world trust Optoelectronics, Optocouplers / Photocouplers, Triac & SCR Output Optocouplers by ON Semiconductor for long-term reliability and performance.
Wiring and Connection Overview
Typical circuit configuration:
[Microcontroller GPIO] - [MOC3052SM Input (LED)]
[Triac Driver Output] - [AC Load] - [AC Power]
The internal phototriac triggers the external load at the zero-cross point of the AC waveform, minimizing electrical noise and voltage spikes.
Use Case Scenario: Quiet and Reliable Control in Smart Thermostats
Scenario: A smart thermostat manufacturer required a low-EMI, long-life AC switching solution for heater and fan relays.
Problem: Electromechanical relays introduced noise and mechanical wear.
Solution: They adopted MOC3052SM Triac & SCR Output Optocouplers by ON Semiconductor with built-in zero-crossing and surface-mount compatibility.
Result: Silent operation, compact board design, and increased reliability—demonstrating why Optoelectronics, Optocouplers / Photocouplers, Triac & SCR Output Optocouplers by ON Semiconductor are preferred in smart devices.
Download Datasheet for MOC3052SM
Looking for electrical specs, pinout diagrams, or certifications?
Download MOC3052SM Datasheet from Xon Electronics
Why Buy from Xon Electronics?
Get authentic Optoelectronics, Optocouplers / Photocouplers, Triac & SCR Output Optocouplers by ON Semiconductor at Xon Electronics with:
- 100% Original ON Semiconductor Parts
- Global Shipping – USA, India, Australia, Europe & More
- Volume Pricing for OEMs and Distributors
- Application Support for Integration
- Fast, Secure Online Checkout
Shop now at www.xonelec.com
Conclusion
The MOC3052SM Triac & SCR Output Optocouplers by ON Semiconductor provide fast, noise-free, and isolated switching of AC loads in compact systems. With 5300 Vrms isolation and zero-crossing detection, these optocouplers are a staple in industrial and home automation applications. Choose Optoelectronics, Optocouplers / Photocouplers, Triac & SCR Output Optocouplers by ON Semiconductor, available globally through Xon Electronics, shipping to the USA, India, Australia, Europe, and other countries.
FAQs – MOC3052SM by ON Semiconductor
Q1. What is the isolation rating of MOC3052SM?
It offers 5300 Vrms insulation between input and output terminals.
Q2. Does this model support zero-crossing switching?
Yes, it has integrated zero-crossing for low-noise AC load activation.
Q3. Is it compatible with surface mount PCBs?
Yes, it comes in a 6-pin SMD package for automated assembly.
Q4. Can it replace mechanical relays?
Absolutely—it's ideal for silent, reliable AC switching without moving parts.
Q5. Where can I buy this component globally?
You can order it from www.xonelec.com with shipping to USA, India, Australia, Europe, and more.