The **RSS-2412/P-R** is a specific DC/DC converter manufactured by RECOM Power. It belongs to the RSS series, which are low-cost, isolated, unregulated converters in a compact SMD (Surface Mount Device) package. ### 1. Part Number Breakdown Understanding the nomenclature helps identify the specific capabilities of this component: | Segment | Code | Description | | :--- | :--- | :--- | | **Series** | RSS | Single Output SMD DC/DC Converter | | **Input Voltage** | 24 | 24V DC Nominal Input | | **Output Voltage**| 12 | 12V DC Output | | **Protection** | /P | Short Circuit Protection (Continuous) | | **Packaging** | -R | Tape and Reel Packaging | --- ### 2. Key Technical Specifications The RSS-2412/P-R is designed for board-level power distribution where isolation is required. * **Power Rating:** 1 Watt * **Input Voltage Range:** 21.6V to 26.4V DC (±10% of nominal) * **Output Voltage:** 12V DC * **Isolation Voltage:** 1kV DC (standard) * **Efficiency:** Typically 80% to 84% * **Operating Temperature:** -40°C to +85°C (without derating) * **Mounting Type:** SMD (Surface Mount) --- ### 3. Internal Block Diagram Concept While the internal circuitry is proprietary, these units typically follow a standard unregulated flyback or push-pull topology: ```mermaid graph LR A[In +] --> B[Switching Circuit] C[In -] --> B B --> D[Isolation Transformer] D --> E[Rectification & Filtering] E --> F[Out +] E --> G[Out -] ``` --- ### 4. Application and Usage This part is commonly used in industrial and telecommunication sectors for the following purposes: 1. **Ground Loop Elimination:** Breaking ground loops in sensitive analog circuits. 2. **Voltage Level Shifting:** Converting a 24V rail to a 12V rail for local components. 3. **Isolation:** Providing safety or noise isolation between a primary bus and a secondary sensor or controller. ### 5. Footprint Information The "RSS" footprint is a standard **8-pin SMD** layout, though several pins are often omitted (NC - No Connection) depending on the specific model. Always refer to the RECOM datasheet for the exact land pattern to ensure thermal management via the PCB pads is optimized.