The **TDK-Lambda RWS600B-5-R** is a high-reliability, industrial-grade AC-DC switching power supply. It is part of the RWS-B series, designed for long life and simplified thermal management. ### Technical Specifications Overview | Feature | Specification | | :--- | :--- | | **Output Voltage** | 5V DC | | **Maximum Current** | 100A | | **Power Rating** | 500W | | **Input Voltage Range** | 85 - 265 VAC (Universal Input) | | **Efficiency** | ~82% | | **Cooling** | Internal Fan | | **Safety Certifications** | UL60950-1, EN60950-1, CE Mark | --- ### Key Electronic Components & Features The RWS600B-5-R utilizes several specific circuit designs to ensure stable power delivery: #### 1. The Output Suffix: "-R" (Remote On/Off) The **-R** designation indicates the inclusion of a **Remote On/Off control circuit**. This allows an external signal to toggle the power supply output without disconnecting the AC mains. This is critical for automated systems and power sequencing. #### 2. Active Power Factor Correction (PFC) It features an internal active PFC circuit. This ensures the unit complies with EN61000-3-2 standards, reducing harmonic current emissions and improving the overall power quality drawn from the grid. #### 3. Protection Circuitry * **Overcurrent Protection (OCP):** Constant current limiting with automatic recovery. * **Overvoltage Protection (OVP):** Shuts down the output if the voltage exceeds a safe threshold (typically 115-140% of nominal). * **Thermal Protection:** Sensors monitor the internal heatsink temperature and shut down the unit if it exceeds safe operating limits. #### 4. Low Profile Electrolytic Capacitors TDK-Lambda uses high-grade, long-life electrolytic capacitors. These are the primary "wear" components in any PSU; the RWS-B series is specifically engineered for an 10-year capacitor life under typical operating conditions. #### 5. Remote Sensing This unit includes sense terminals (+S and -S). These allow the power supply to monitor the voltage directly at the load, compensating for voltage drops that occur across long output cables. --- ### Connection Terminals | Terminal | Function | | :--- | :--- | | **L, N** | AC Input (Line and Neutral) | | **FG** | Frame Ground (Earth) | | **+V / -V** | Main DC Output (5V) | | **+S / -S** | Remote Sensing | | **CNT+ / CNT-** | Remote On/Off Control Signal |