The **W2TG0-2B1-R/N** belongs to a series of industrial-grade **AC Axial Fans**, typically manufactured by brands like **Sanyo Denki** or similar high-performance thermal management companies. These parts are engineered for high-reliability cooling in server racks, power supplies, and industrial control cabinets. --- ### 1. Technical Specifications | Parameter | Specification | | :--- | :--- | | **Input Voltage** | 100V - 115V AC (Standard Range) | | **Frequency** | 50 / 60 Hz | | **Current / Power** | Approx. 0.12A - 0.20A / 10W - 15W | | **Bearing Type** | Dual Ball Bearing (High Longevity) | | **Frame Material** | Aluminum Die-cast (Heat Dissipation) | | **Impeller Material** | Plastic (UL94V-0 Flame Retardant) | | **Termination** | Lead Wires (R/N Suffix variation) | --- ### 2. Breakdown of Electronic Features #### A. Motor Architecture The device utilizes a **Shaded Pole Motor** or a **Permanent Split Capacitor (PSC) motor**. Unlike DC fans that use brushless electronic commutation, these AC fans rely on the frequency of the AC line to determine rotational speed. #### B. The "R/N" Designation In electronic component nomenclature for fans: * **R (Sensor/Signal):** Often indicates a specific rotation sensor or a "Lock Sensor" that outputs a signal if the fan stops spinning. * **N (Standard/Low Noise):** Can denote a specific noise-optimized blade geometry or a standard lead-wire configuration without additional control circuitry. #### C. Protection Circuitry * **Impedance Protection:** The motor windings are designed so that if the fan is physically blocked (locked rotor), the internal resistance prevents the coils from overheating and catching fire. * **Insulation Resistance:** Usually rated for 10MΩ or higher at 500VDC between the frame and the lead wires. --- ### 3. Connection Diagram (Standard AC) ```mermaid graph LR A[AC Live/Phase] --- B(White/Black Wire) C[AC Neutral] --- D(White/Black Wire) E[Ground] --- F(Green/Yellow or Metal Frame) ``` --- ### 4. Key Applications 1. **Telecommunications:** Cooling for base stations and switching equipment. 2. **Industrial Cabinets:** Preventing heat buildup in PLC (Programmable Logic Controller) housings. 3. **Medical Equipment:** Reliable airflow for diagnostic machines where DC power might not be readily available for peripheral cooling.