Star Product: Accelerating Intelligence! NATIONSTAR Launches New Ultra-Thin, High-Voltage Withstand Optocouplers

High-speed negative ion hair dryers with stepless temperature and speed controlhelp nourish and protect hair.

Smart rice cookers automatically adjust the rice-to-water ratio, allowing even beginners to cook fluffy, fragrant rice easily.

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Behind the convenient functions of these smart home appliances lies the powerful support of this tiny component:

- Triac Optocoupler -

As a key component for controlling AC loads, triac optocouplers play an important role in electrical isolation, signal control and transmission in electrical control systems, making them one of the core components for home appliance intelligence.

To drive technological upgrades in smart home appliances, NATIONSTAR draws on its core strengths in packaging and innovatively launched the FOC-30XXM4 series of triac optocouplers.

▲NATIONSTAR FOC-30XXM4 Series Triac Optocouplers

This series adopts an ultra-thin package design with dimensions of only 4.4 mm × 4.1 mm × 2.0 mm and a high isolation voltage of 3750 Vrms. It meets the compact internal space and electrical safety requirements of smart small home appliances such as hair dryers and rice cookers, providing the market with highly efficient and reliable optocoupler solutions.

Triac Optocoupler

The Underlying Logic of Intelligent Control

A triac optocoupler is a special type of optocoupler composed of an infrared light-emitting diode (IR LED) and a bidirectional triac. Through “electricity–light–electricity” signal conversion, it achieves electrical isolation and signal transmission between the input and output sides.

For example, in a high-speed ionic hair dryer, driven by the MCU (microcontroller unit), the triac optocoupler precisely regulates load power while electrically isolating circuits, enabling stepless speed and temperature control for the hair dryer’s motor and heating element.

▲Schematic Diagram of the Working Principle of Triac Optocouplers Used in Hair Dryers

In smart rice cookers, under the control of the MCU, the triac optocoupler intelligently regulates cooking power to ensure fluffy, delicious rice with different rice-to-water ratios.

In addition, triac optocouplers are also widely used in industrial automation, power systems and other equipment fields.

New Products from NATIONSTAR

The Preferred Solution for High Weather Resistance and High Efficiency

In equipment design and component selection, core characteristics of triac optocouplers — including electrical isolation performance, electromagnetic interference resistance, and trigger response speed — are key indicators for manufacturers.

To better meet market demand for high-performance triac optocouplers, NATIONSTAR has further optimized the performance and quality of its FOC-30XXM4 series triac optocouplers, building four major product advantages:

▲NATIONSTAR FOC-30XXM4 Series Triac Optocouplers

▋Strong Driving Capability & Wide Applicability: Built with a bidirectional triac chip featuring 100mA driving capability, the product can directly drive power triac devices with a load current of 10–16A, meeting electrical isolation and power control requirements in smart home appliances, industrial automation equipment, rail intelligent switches and other scenarios.

▋Microsecond-Level Response for Precise Control: Through optimized design to reduce parasitic capacitance, the device achieves a photoelectric response speed of 10–40μs, a 20% improvement over conventional similar products. It enables efficient transmission of transient signals and ensures fast equipment response to load changes.

▋Industrial-Grade Quality with Weather Resistance & Anti-Interference: Adopts a high-density red copper lead frame for salt-alkali and corrosion resistance. Unidirectional optical signal transmission effectively shields electromagnetic interference, ensuring stable operation of the circuit system.

▋High-Temperature Stability for Extended Equipment Lifespan: Backed by mature functional chips and packaging technology, the product maintains stable performance at a high temperature of 110°C, providing long-lasting and reliable technical support for intelligent equipment.

Thanks to the outstanding performance of the FOC-30XXM4 series triac optocouplers, NATIONSTAR has successfully entered the supply chains of multiple home appliance manufacturers. The product is accelerating its promotion and application in smart home and industrial control fields, becoming a preferred solution in the market.

▲Specifications of FOC-30XXM4 Series Triac Optocouplers

At present, NATIONSTAR has built a complete high-performance optocoupler product matrix. The products have obtained CQC certification, VDE certification, UL certification and State Grid certification, featuring reliable quality and meeting diverse application demands in the market.

Moving forward, NATIONSTAR will continue to earnestly practice the FAITH business philosophy of Guangdong Guangsheng Holding Group Co., Ltd., adhere to innovation-driven success, accelerate product upgrading and iteration, and inject more strength from NATIONSTAR to boost the accelerated breakthrough of domestic substitution.