EL357N
by EVERLIGHT(亿光)In the EL357N, Everlight pairs an LED input with a phototransistor output to pass a signal through an optical isolation barrier. Applications include isolated control signals and power-supply feedback, where the input and output belong to separate electrical domains. The supplied KiCad symbol exposes 4 pins; its matching PCB file is OPTO-SMD-4_L4.4-W4.1-P2.54-LS7.0-TL, a surface-mount footprint with 4 pads. Both are downloadable for free alongside a 3D model for viewing package orientation and placement. This conversion came from a real ProtoFlow import and was checked in the editor after conversion. Open the EL357N directly in ProtoFlow to place it in a design.
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