The IS126 Optoisolators - Transistor, Photovoltaic Output by Isocom Components 2004 LTD is a high-performance optoisolator designed to prevent electrical noise, voltage spikes, and undesired current flow between two electrical circuits. Featuring a mini flat 4-pin, transistor output, and a 5kVAC isolation rating, this device isolates any input-to-output voltages while allowing your system to communicate data point-to-point reliably. The optoisolator’s integrated circuit output structure improves response time, reduces power dissipation, and eliminates the need for an external resistor, making it an ideal solution for space-constrained systems and applications where robust, efficient isolation is required. Additionally, its monolithic technology offers excellent temperature protection for wide voltage input ranges, improving operational performance in extreme environmental conditions.