Isocom AC Input 2-Channel Optocoupler, Surface Mount, 4-Pin DIP, Isolation Voltage 3750 Vrms, IS126

The Isocom IS126 AC Input 2-Channel Optocoupler is designed for high-reliability signal isolation between systems operating at different voltage potentials. It features a dual-channel optically coupled configuration using two infrared LEDs arranged in inverse parallel, each linked to an NPN silicon phototransistor, integrated in a space-saving surface-mount 4-pin DIP package.

This Optocoupler is rated for a maximum isolation voltage of 3750 Vrms, allowing safe operation in environments requiring robust protection against electrical interference. With an AC input current type and a maximum input current of 50mA, the device is equipped to handle varying logic levels commonly found in industrial and instrumentation designs.

The device exhibits a forward voltage rating of 1.4V, current transfer ratio ranging from 0.2% to 4%, and fast switching characteristics, including a typical rise time of 4μs and fall time of 3μs. Its wide operating temperature range (-55°C to 100°C) makes it highly suitable for demanding applications where temperature fluctuation is frequent.

Thanks to its surface-mount form and 4-pin DIP package, the IS126 is easily integrated into PCBs within computer terminals, industrial system controllers, measuring instruments, and signal transmission circuits between systems with varying potentials and impedances. The device can serve as a drop-in replacement for similar models, such as Toshiba TLP126, ensuring broad compatibility.

Industrial use cases include factory automation, measurement systems, commercial signal isolation, and controller designs. It is suitable for both new installations and legacy upgrades where compact form and reliable isolation are required.

Optical isolation for protecting sensitive components and circuits. Surface-mount configuration streamlines assembly and manufacturing. Dual-channel design supports parallel or independent operation. High isolation voltage for enhanced safety and compliance.

Wide temperature tolerance ensures durability in diverse environments. Browse EnvMart for related optoelectronic isolation devices and discover Isocom's complete product range for industrial and laboratory projects.