ISOCOM H11G2 Optocoupler, Darlington Output, 1 Channel, DIP-6

The ISOCOM H11G2 is a highly reliable 1-channel optically coupled isolator, designed for critical signal isolation applications. This component integrates a gallium arsenide infrared emitting diode with a silicon Darlington phototransistor output, providing robust electrical isolation and efficient signal transfer. An integral base-emitter resistor within the Darlington pair optimises switching performance and enhances stability across a wide range of operating temperatures.

Engineered for precision, this optocoupler features an exceptionally low collector dark current of just 100nA maximum at 80VCE, ensuring minimal leakage and high signal integrity. It offers a high current transfer ratio (CTR) of 1000% minimum, enabling efficient drive capability for interfacing with microcontrollers, logic circuits, and other low-power signal sources. The device provides substantial isolation, with a rated isolation voltage of 5.3kV, making it suitable for applications where safety and noise immunity are paramount.

Key Features & Applications

Its primary function is to provide galvanic isolation between two circuits, preventing ground loops, suppressing electrical noise, and protecting sensitive components from voltage spikes. The Darlington output configuration allows it to drive higher loads directly, simplifying circuit design. Its compact DIP-6 package ensures easy integration onto standard printed circuit boards for prototyping and volume production.

Typical Uses

This optocoupler is a fundamental component in modern electronics, finding extensive use in communications and networking equipment for signal line isolation, as well as in various signal processing systems. It is ideal for use in industrial control interfaces, power supply feedback loops, and medical equipment where reliable isolation is non-negotiable. The robust construction and specified performance parameters make the H11G2 a trusted choice for