Stepped-Fin 40x40 Extruded Aluminum Heat Sink

Innovative Fin Architecture for Multi-Zone Thermal Management The Stepped-Fin 40x40 Extruded Aluminum Heat Sink introduces a smart geometric solution to the challenge of cooling multiple components within a confined footprint. Its dual-level fin structure—featuring a central high platform flanked by lower side fins—creates natural airflow channels while allowing separate thermal zones for different heat sources. This design is especially effective in AI edge devices, FPGA modules, and compact power converters where component heights vary. Precision Engineering in an Al Extruded Type Form As an Al Extruded Type product, this heatsink leverages the consistency and scalability of aluminum extrusion to deliver complex cross-sections without assembly or bonding. The monolithic 6063-T5 aluminum body ensures uniform thermal conductivity (~201 W/m·K) from base to fin tip. Unlike stacked or folded-fin alternatives, there are no interfacial resistances—just pure, reliable performance from a sin…

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