ATS-04F-121-C2-R0
AI

The **ATS-04F-121-C2-R0** is a high-performance heat sink manufactured by **Advanced Thermal Solutions (ATS)**. It is part of the **pushPIN™** series, designed specifically to dissipate heat from electronic components like CPUs, GPUs, or power transistors.
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### 1. Technical Specifications
The following table summarizes the physical and thermal characteristics of this specific component:
| Feature | Specification |
| :--- | :--- |
| **Material** | Aluminum |
| **Finish** | Blue Anodized |
| **Attachment Method** | pushPIN™ (Spring-loaded) |
| **Dimensions (L x W x H)** | 45mm x 45mm x 30mm |
| **Thermal Resistance (Unducted)** | 3.95 °C/W @ 100 LFM |
| **Thermal Resistance (Ducted)** | 1.90 °C/W @ 100 LFM |
| **Weight** | 1.83 oz (approx. 52g) |
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### 2. Key Design Elements
#### A. The Fin Profile
The "121" in the part number corresponds to a **Cross-Cut** fin design. This pattern allows for multi-directional airflow, making it highly effective in systems where the direction of the air from cooling fans might vary.
#### B. Push-Pin Attachment
Instead of using messy thermal adhesives or complex screws, this part uses a **push-pin and brass spring** mechanism:
* **Ease of Assembly:** Ensures even pressure across the component surface.
* **Reliability:** The springs provide a consistent "clamping force" that prevents the heat sink from shifting during vibration or shipping.
#### C. Thermal Interface Material (TIM)
The "R0" suffix indicates that the part typically comes with **T766** pre-applied thermal phase-change material. This ensures optimal thermal conductivity between the electronic chip and the aluminum base without requiring manual paste application.
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### 3. Applications
This part is commonly used in industrial and telecommunications hardware, including:
* **Embedded Systems:** For cooling high-speed processors.
* **Network Switches:** Handling heat from ASICs.
* **Power Supplies:** Cooling MOSFETs or power conversion modules.
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- ⤷
What are the differences between ducted and unducted thermal resistance?
- ⤷ How do I calculate the required hole pattern for the push-pin installation?
- ⤷ Are there copper versions of this heat sink available for higher heat loads?