The **ZWS100BAF-5/CO2** is an industrial-grade, open-frame AC-DC power supply manufactured by TDK-Lambda. This specific model is part of the ZWS-BAF series, known for its high reliability and compact design. Below is a detailed breakdown of its specifications and electronic features. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Output Voltage** | 5V DC | | **Output Current** | 20A (Maximum) | | **Total Power** | 100W | | **Input Voltage Range** | 85 - 265V AC (47-63Hz) or 120 - 370V DC | | **Efficiency** | ~82% to 86% (Typical) | | **Cooling** | Convection Cooled | | **Dimensions** | 62mm x 32mm x 155mm | --- ### 2. Electronic Design Features The ZWS100BAF-5/CO2 incorporates several advanced electronic subsystems to ensure stable power delivery: * **Active Power Factor Correction (PFC):** This circuitry ensures compliance with IEC61000-3-2 standards, reducing harmonic distortion and improving energy efficiency. * **Over-Voltage Protection (OVP):** Shuts down the unit if the output voltage exceeds a specific threshold (typically 115-135% of nominal) to protect sensitive downstream components. * **Over-Current Protection (OCP):** Features "Constant Current Limiting" with automatic recovery (Hiccup mode or foldback) once the overload condition is removed. * **Isolation:** High dielectric strength, typically providing 3k VAC between input and output to ensure user and equipment safety. --- ### 3. Understanding the Suffixes The part number contains specific codes that define its physical and chemical protection characteristics: * **BAF Series:** Indicates the high-efficiency, active PFC generation of the ZWS family. * **-5:** Denotes the fixed **5V DC** output voltage. * **/CO2:** This is a crucial suffix. It indicates that the **PCB is coated on both sides**. This conformal coating protects the electronic components from moisture, dust, and environmental contaminants, making it suitable for harsher industrial environments. --- ### 4. Typical Applications Due to its high reliability and the `/CO2` coating, this part is commonly used in: 1. **Industrial Automation:** Control systems and PLCs. 2. **Test and Measurement:** Precision lab equipment. 3. **Communication:** Network base stations. 4. **LED Signage:** Providing stable 5V power for logic controllers. ---