The **SWF150P-48-LC-R** is a high-performance, AC-DC power supply manufactured by **Sanken Electric**. It belongs to the SWF series, which is known for its compact design, high efficiency, and reliability in industrial applications. Below is a breakdown of its technical specifications and electronic characteristics. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Input Voltage Range** | 85V AC to 264V AC (Universal) | | **Output Voltage** | 48V DC | | **Rated Output Current** | 3.2A | | **Peak Output Current** | 4.8A (Approx. 150% peak capability) | | **Rated Power** | 150W | | **Efficiency** | ~90% (typical) | | **Form Factor** | Open Frame (L-bracket type) | --- ### 2. Breakdown of the Model Name Understanding the nomenclature helps identify the specific features of this unit: * **SWF**: Series name (Switching Power Supply). * **150P**: Indicates the power rating (150 Watts). * **48**: Indicates the DC output voltage (48V). * **LC**: Indicates the mechanical configuration (usually refers to an L-bracket and cover option). * **R**: Often indicates remote sensing or specific connector orientation/compliance. --- ### 3. Electronic Features & Protections The internal circuitry is designed with several advanced electronic protections to ensure longevity: * **PFC (Power Factor Correction):** Built-in active PFC circuit to reduce harmonic current distortion and comply with IEC61000-3-2. * **Overcurrent Protection (OCP):** Automatically limits output current when it exceeds the rated capacity, recovering automatically once the fault is removed. * **Overvoltage Protection (OVP):** Shuts down the output if the voltage exceeds the 48V threshold to prevent damage to connected components. * **Thermal Protection:** Prevents the unit from overheating by limiting power or shutting down if the internal temperature rises above safe limits. * **Low Standby Power:** Optimized for high efficiency even under light load conditions. --- ### 4. Physical and Connection Details * **Cooling:** Primarily designed for convection cooling; however, forced air (fan) may be used to reach peak performance levels. * **Connectors:** Usually utilizes JST or similar crimp-style headers for easy integration into industrial control panels. * **EMI/EMC:** Complies with standard noise emission regulations (FCC Class B, VCCI-B). --- ### 5. Common Applications Due to its 48V output and 150W capacity, this part is commonly used in: 1. **Telecommunications:** Powering networking hardware. 2. **LED Lighting:** Large scale signage or industrial lighting. 3. **Industrial Automation:** Powering PLCs, sensors, and motor controllers. 4. **Medical Equipment:** (Depending on specific isolation ratings).