ON Semiconductor MOC8111SD Optocoupler

The MOC8111SD from ON Semiconductor is a high-quality optocoupler that provides a crucial interface between high-voltage electrical circuits and low-voltage control systems. This optoelectronic device is designed to offer electrical isolation, ensuring that fluctuations or surges in the high-voltage side do not affect the sensitive electronics on the low-voltage side. The MOC8111SD is a crucial component in a wide range of applications, including industrial control systems, power supply units, and consumer electronics.

At the heart of the MOC8111SD is a gallium arsenide infrared emitting diode, which is optically coupled to a silicon phototransistor detector. The LED emits light when activated by a low-voltage control signal, and the phototransistor responds to the light by allowing current to flow through the high-voltage circuit, enabling control without direct electrical connection.

Key Features:

• Electrical Isolation: The MOC8111SD provides an isolation voltage of 7500V peak, ensuring the protection of sensitive components from high-voltage transients.
• High Current Transfer Ratio (CTR): With a CTR that typically ranges from 50% to 150%, this optocoupler offers efficient signal transfer between circuits.
• Compact Package: The device comes in a standard 6-pin DIP package, making it easy to integrate into various circuit designs without taking up excessive space.
• Industry Standards: It meets or exceeds various industry standards for safety and reliability, including UL1577 and DIN EN/IEC60747-5-5.

With its robust design, the MOC8111SD is capable of operating within a wide temperature range of -40°C to +85°C, making it suitable for harsh environments. Moreover, it features a typical input-to-output capacitance of 0.5 pF, which minimizes the potential for unwanted feedback in high-frequency applications.

Whether you're designing a motor control circuit, an isolated switch, or a power supply feedback loop, the MOC8111SD from ON Semiconductor offers the reliability and performance necessary for your critical applications. Its ability to provide both signal transmission and electrical isolation with high efficiency makes it an essential component for designers looking to ensure system integrity and safety.