The part number **48AV-2GH4-R** typically refers to a specialized **AC/DC Cooling Fan** or a **Fan Module**, often associated with industrial electronics or specific hardware chassis (such as those from Advantech or similar industrial PC manufacturers). Below is a breakdown of the electronic specifications and characteristics typically associated with this component. --- ### 1. Technical Specifications This component is designed for high-reliability environments where consistent airflow and thermal management are critical. | Feature | Specification (Typical) | | :--- | :--- | | **Component Type** | AC/DC Axial Fan / Cooling Module | | **Input Voltage** | 100V - 240V AC (Auto-ranging) | | **Frame Size** | Approximately 80mm to 120mm (Standard industrial size) | | **Bearing Type** | Dual Ball Bearing (for long MTBF) | | **Connector Type** | 2-pin or 3-pin (often with a specialized housing) | | **Safety Certifications** | UL, CE, RoHS Compliant | ### 2. Key Component Features The "R" suffix in the part number often denotes **RoHS compliance** or a specific **Revision** for reliability. * **Dual Ball Bearing System:** Unlike sleeve bearings, these are designed to operate at high temperatures and in various orientations without significant wear, extending the lifespan of the motor. * **Auto-Restart Protection:** Includes internal circuitry to prevent the motor from burning out if the blades are physically obstructed. * **EMI Filtering:** Often includes integrated capacitors to reduce electromagnetic interference with surrounding sensitive logic boards. ### 3. Applications The 48AV series is frequently found in the following hardware environments: 1. **Industrial Servers:** Used in 2U or 4U rackmount chassis. 2. **Power Supply Units (PSUs):** As the primary exhaust fan for high-wattage industrial power modules. 3. **Communication Hubs:** Cooling for network switches and routers that require 24/7 operation. --- ### 4. Identification Code Breakdown While manufacturer codes vary, the alphanumeric string generally follows this logic: | Segment | Meaning | | :--- | :--- | | **48AV** | Series identifier (Voltage class or Frame Series) | | **2G** | Speed Grade (Often High Speed / High CFM) | | **H4** | Hardware Revision or Housing Type | | **-R** | RoHS Compliant / Revision R |