The **ATS-21F-77-C2-R0** is a high-performance electronic thermal management component, specifically a **Heat Sink** manufactured by *Advanced Thermal Solutions (ATS)*. It belongs to the **maxiFLOW™** series, designed for cooling high-power semiconductors. --- ## 1. Technical Specifications The following table summarizes the core physical and thermal characteristics of the part: | Characteristic | Specification | | :--- | :--- | | **Part Number** | ATS-21F-77-C2-R0 | | **Product Type** | Heat Sink | | **Series** | maxiFLOW™ | | **Attachment Method** | pushPIN™ | | **Material** | Aluminum (Blue Anodized) | | **Thermal Resistance** | 9.30°C/W (Unducted) | | **Dimensions (L x W x H)** | 40mm x 40mm x 20mm | | **Flow Pattern** | High Performance / Open Fin | --- ## 2. Key Electronic Components & Features ### A. pushPIN™ Attachment System Unlike traditional adhesive-based heat sinks, this model uses a **pushPIN™** assembly. This is critical for electronic stability because: * It ensures a constant, predefined pressure on the component (e.g., a CPU, FPGA, or MOSFET). * The springs are available in 9 different options to accommodate various PCB thicknesses. * The **plastic/brass pins** provide a secure mechanical lock to the PCB. ### B. maxiFLOW™ Fin Design The electronic performance of this part is driven by its unique fin geometry. The design creates a "flared" fin structure which: 1. Increases surface area for heat dissipation. 2. Reduces pressure drop across the heat sink. 3. Optimizes airflow in constrained electronic enclosures. ### C. Thermal Interface Material (TIM) The "C2" suffix in the part number indicates the specific thermal interface. * It typically comes pre-applied with **ATS-PPS-02** or a similar high-performance thermal pad. * This ensures the elimination of air gaps between the heat sink and the electronic chip, maximizing heat transfer efficiency. --- ## 3. Application Use Cases This part is commonly used to protect sensitive electronic integrated circuits (ICs) in the following environments: * **Telecommunications:** Cooling of high-speed networking switches and routers. * **Embedded Systems:** Industrial PCs where fan space is limited. * **Power Electronics:** Dissipating heat from large voltage regulators or power modules.