The **PSAC45W-240-R** is a 45-Watt AC/DC external wall-mount power adapter manufactured by **Phihong**. It is commonly used for networking equipment, peripherals, and industrial electronics. --- ## Technical Specifications The following table outlines the primary electronic characteristics of the PSAC45W-240-R: | Parameter | Specification | | :--- | :--- | | **Output Voltage** | 24V DC | | **Output Current** | 1.875A | | **Maximum Power** | 45 Watts | | **Input Voltage Range** | 90 to 264V AC (Universal) | | **Input Frequency** | 47 to 63 Hz | | **Efficiency** | Level VI (High Efficiency) | | **Connector Type** | 2.1mm x 5.5mm x 9.5mm (Center Positive) | | **Safety Certifications** | cUL/UL, CE, TUV, RCM | --- ## Key Electronic Features ### 1. Protection Circuitry The device includes internal protection mechanisms to prevent damage to the connected device: * **Over-Voltage Protection (OVP):** Shuts down or clamps the output if the voltage exceeds a safe threshold. * **Over-Current Protection (OCP):** Prevents damage during a short circuit or excessive load. * **Short Circuit Protection (SCP):** The unit will self-recover once the short is removed. ### 2. Efficiency Standards The "R" suffix and the Level VI rating indicate that this unit meets stringent global energy efficiency standards. It has a very low **No-Load Power Consumption** (typically <0.1W), meaning it draws minimal power when plugged in but not charging a device. ### 3. EMI and Noise * **EMI/EMC:** It is designed to meet FCC Class B and EN55022 Class B standards, ensuring it does not interfere with radio or wireless signals. * **Ripple and Noise:** The output has a low ripple (typically 240mV peak-to-peak), providing stable DC power to sensitive electronic components. ### 4. Physical Configuration * **Input Plug:** North American NEMA 1-15P (Fixed) or interchangeable depending on the specific regional sub-variant. * **Isolation:** 3000V AC Primary to Secondary, ensuring user safety from high-voltage mains. --- ## Typical Applications * Wireless modems and routers. * Small-form-factor desktop printers. * Industrial sensors requiring a stable 24V supply. * LED lighting strips and controllers.