PE42522A-X from Peregrine Semiconductor is a custom semiconductor component used in designs that require manufacturer-specific functionality, design continuity, or support for specialized RF and mixed-signal applications. Because this part is listed in a custom parts category, engineers and sourcing teams typically evaluate it in the context of exact BOM matching, approved vendor lists, and qualification requirements rather than broad cross-referencing. It can be relevant for telecom, industrial, aerospace, test equipment, or other embedded platforms where replacement flexibility may be limited. From a procurement standpoint, the key value of PE42522A-X is traceability and fit within existing approved designs. Lifecycle status for this part is information not available, so teams should confirm current production status directly with the manufacturer or authorized sources before committing to new designs. RoHS compliance information is also not available in the provided data; engineers should verify the latest environmental compliance declarations, datasheet notes, and material disclosures before release to production.