The **15VF-A6-R** is a specific model of an industrial-grade **Centrifugal Fan** (specifically a Cross-Flow or Tangential fan) often used in electronic cooling and ventilation systems. Below is a breakdown of its technical specifications and electronic characteristics. --- ### 1. Technical Specifications This part is typically manufactured by brands like **Nidec (Copals)** or **Sanyo Denki**. It is designed for high-efficiency air movement in tight spaces. | Feature | Specification (Typical) | | :--- | :--- | | **Type** | Cross-Flow Fan / Tangential Fan | | **Rated Voltage** | 12V DC (Standard for VF series) | | **Operating Voltage** | 10.2V to 13.8V | | **Current Consumption** | Approx. 0.15A - 0.25A | | **Speed (RPM)** | ~2500 - 3000 RPM | | **Bearing Type** | Dual Ball Bearing (for long life) | | **Termination** | Lead wires (typically 2 or 3 wires) | --- ### 2. Key Electronic Components The "electronics" inside the 15VF-A6-R consist of the motor drive circuitry integrated into the hub: * **Brushless DC (BLDC) Motor:** Unlike brushed motors, this uses an electronic controller to switch the magnetic fields, reducing friction and EMI (Electromagnetic Interference). * **Hall Effect Sensor:** An internal sensor that detects the position of the rotor to ensure the controller pulses the coils at the correct timing. * **Protection Circuitry:** * **Locked Rotor Protection:** Automatically shuts off or reduces power if the blades are obstructed to prevent the coils from burning out. * **Reverse Polarity Protection:** Prevents damage if the positive and negative wires are connected incorrectly. --- ### 3. Wiring Configuration Depending on the specific suffix, the wires serve the following functions: | Wire Color | Function | Description | | :--- | :--- | :--- | | **Red** | VCC (+) | Positive power supply (12V). | | **Black** | GND (-) | Ground/Negative. | | **Yellow/White** | FG (Tachometer) | (Optional) Sends a frequency signal to the CPU to monitor RPM. | --- ### 4. Common Applications Due to its "A6" (long/slender) form factor, the 15VF series is found in: 1. **Rackmount Servers:** Cooling thin 1U or 2U enclosures. 2. **Medical Equipment:** Quiet airflow for diagnostic machines. 3. **Laboratory Gear:** Precision temperature control. 4. **Air Curtains:** Creating a barrier of air in small dispensers. ---