The **SWF100P-24-L-R** is a high-reliability, AC-DC switching power supply manufactured by **Sanken Electric**. It is part of the SWF series, designed for industrial applications requiring a compact footprint and high efficiency. --- ## 1. Technical Specifications The following table outlines the primary electrical characteristics of this specific model: | Parameter | Specification | | :--- | :--- | | **Output Voltage** | 24V DC | | **Output Power** | 100W | | **Input Voltage Range** | 85V to 264V AC (Universal) | | **Output Current** | 4.3A (Peak currents possible) | | **Efficiency** | ~88% to 90% (Typical) | | **Cooling** | Convection Cooling | | **Mounting Type** | Open Frame / Chassis Mount | --- ## 2. Model Breakdown (Suffix Analysis) The part number follows a specific nomenclature used by Sanken: * **SWF**: Series Name (Switching Power Supply - Compact type). * **100**: Rated Output Power (100 Watts). * **P**: Peak power capability (Designed to handle momentary surges). * **24**: Output Voltage (24 Volts). * **-L**: Indicates the inclusion of a **Chassis/L-Bracket** for mounting. * **-R**: Indicates **Remote Sensing** or specialized terminal configuration (depending on the specific production lot, usually refers to remote control/sensing options). --- ## 3. Key Electronic Features ### Power Factor Correction (PFC) This unit features built-in active PFC, which reduces harmonic current and ensures compliance with international standards like IEC61000-3-2. ### Protection Circuitry The device includes several layers of safety to protect connected electronics: * **Overcurrent Protection (OCP):** Automatically recovers after the fault is removed. * **Overvoltage Protection (OVP):** Shuts down the unit if the output exceeds a safe voltage threshold. * **Thermal Protection:** Prevents damage from overheating. ### Design and Build * **Low Profile:** Designed to fit in 1U (1.75 inch) rack applications. * **Electrolytic Capacitors:** Typically uses high-grade, long-life capacitors to ensure industrial longevity. * **EMI Compliance:** Meets FCC Class B and VCCI Class B standards for electromagnetic interference. --- ## 4. Common Applications Due to its 24V output and 100W capacity, this part is frequently found in: 1. **Industrial Automation:** Powering PLCs, sensors, and actuators. 2. **Communication Equipment:** Routers and small-scale base stations. 3. **Medical Devices:** (Depending on specific isolation ratings) used in diagnostic equipment. 4. **LED Signage:** Providing stable DC power for display modules.