The **W2TG0-3CB-R** is a specific part number belonging to a series of **AC Axial Fans**, typically manufactured by brands like **Sanyo Denki** (San Ace series) or similar industrial cooling specialized companies. These fans are designed for high-reliability thermal management in server racks, industrial control panels, and power supplies. --- ### 1. Component Specification Overview Below are the technical specifications typically associated with this model series: | Feature | Specification | | :--- | :--- | | **Component Type** | AC Axial Cooling Fan | | **Input Voltage** | 100V - 115V AC (Standard 50/60Hz) | | **Frame Size** | 120mm x 120mm x 38mm (Industry Standard) | | **Bearing Type** | Dual Ball Bearing (Long Life) | | **Material** | Aluminum Frame / Plastic Impeller (UL94V-0) | | **Termination** | Lead Wires or Terminals (Model dependent) | | **RoHS Status** | Compliant (Indicated by the "-R" suffix) | --- ### 2. Breakdown of the Part Number Logic While manufacturers have proprietary coding, the string "W2TG0-3CB-R" generally breaks down as follows: * **W2T / W2S:** Often denotes the series and the AC motor type (Shaded Pole or Capacitor-run). * **G0:** Usually relates to the specific frame size and depth (120x38mm). * **3CB:** * **3:** Represents the voltage class (typically 100-115V). * **C:** Speed designation (High speed/Standard). * **B:** Bearing type (Ball Bearing). * **-R:** Indicates **RoHS compliance**, ensuring the part is free from restricted hazardous substances like lead or mercury. --- ### 3. Key Electronic Features 1. **Impedance Protection:** The motor is designed to withstand a locked rotor condition without catching fire or causing a short circuit, usually through internal thermal protection or high-impedance windings. 2. **Dual Ball Bearing System:** Unlike sleeve bearings, these are designed for 24/7 operation and can be mounted in any orientation without affecting the lifespan (typically rated for 40,000 to 70,000 hours). 3. **Dielectric Strength:** Built to withstand high voltage spikes, usually tested at 1500V AC for 1 minute between the frame and the lead wires. 4. **Airflow Dynamics:** The "Axial" design means air is drawn in parallel to the shaft and blown out the other side, making it ideal for high-flow, low-static pressure environments. --- ### 4. Common Applications * **Networking Equipment:** Cooling switches and routers. * **Industrial Cabinets:** Preventing heat buildup in PLC housings. * **Power Supplies:** Heat dissipation for large AC/DC converters. * **Medical Devices:** Reliable cooling for imaging or diagnostic hardware.