The **W2VS-162A-R** is a specific model of an **AC Axial Fan** manufactured by **Walsin** (or associated brands like Nidec/Cooltron). It is primarily designed for thermal management in industrial equipment, server racks, and power supplies. --- ### ## Technical Specifications The following table outlines the key electrical and mechanical characteristics of the W2VS-162A-R: | Parameter | Specification | | :--- | :--- | | **Input Voltage** | 220V - 240V AC | | **Frequency** | 50/60 Hz | | **Input Power** | ~35W - 45W | | **Airflow** | High Volume (Approx. 190-230 CFM) | | **Bearing Type** | Dual Ball Bearing | | **Housing Material** | Die-cast Aluminum | | **Blade Material** | Thermoplastic (PBT) | | **Termination** | Lead Wires or Terminals | --- ### ## Key Electronic Components & Design Features #### 1. Shaded Pole Motor The fan typically utilizes a **Shaded Pole AC Motor**. This is a simple type of self-starting induction motor. * **Stator:** Consists of copper windings around a laminated steel core. * **Rotor:** A squirrel-cage rotor that reacts to the magnetic field created by the AC input. #### 2. Dual Ball Bearing System Unlike cheap sleeve bearings, the "R" series often signifies high-end durability. * **Longevity:** Rated for 50,000 to 70,000 hours of continuous operation. * **Heat Resistance:** Ball bearings handle the high ambient temperatures of electronic enclosures better than oil-impregnated sleeves. #### 3. Impedance Protection The motor windings are **Impedance Protected**. This is a safety feature where the motor is designed so that if the fan blade is stalled (locked rotor), the impedance of the windings is high enough to prevent the current from rising to a level that would cause a fire or permanent damage. #### 4. EMI/RFI Shielding Because the frame is made of **Die-cast Aluminum**, it acts as a natural shield against Electromagnetic Interference (EMI), which is crucial when the fan is mounted near sensitive PCB components. --- ### ## Applications * **Server Cabinets:** For exhausting hot air from high-density computing environments. * **Power Inverters:** Cooling large MOSFETs and transformers. * **Industrial Control Panels:** Maintaining internal temperatures to prevent PLC failure.