ACPL-217-56CE – AVAGO

The ACPL-217-56CE is a single-channel optocoupler housed in a 4-pin small outline (SO) package, providing galvanic isolation up to 3.75 kVrms as per regulatory standards. The input stage consists of an AlGaAs LED, optically coupled to a silicon phototransistor output. This configuration allows for DC and AC signal isolation with a current transfer ratio (CTR) that falls within a specified bin range, indicated by the “56” suffix, ensuring predictable performance across devices. The device is designed for applications requiring reinforced insulation and high common-mode transient immunity, such as in power supplies, digital logic isolation, and microcomputer system interfaces. Its compact SO package facilitates high-density board layouts and automated assembly processes. The “E” suffix denotes compliance with RoHS and other environmental regulations, indicating the use of lead-free materials in its construction.