The **FFB0812SH-R00** is a high-performance industrial DC axial fan manufactured by Delta Electronics. It is known for its high airflow and reliability in server and telecommunications applications. ### 1. Technical Specifications The following table highlights the core electrical and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Manufacturer** | Delta Electronics | | **Frame Size** | 80mm x 80mm x 25mm | | **Rated Voltage** | 12 VDC | | **Operating Voltage Range** | 7.0 ~ 13.8 VDC | | **Rated Current** | 0.50 A (Max 0.60 A) | | **Rated Power** | 6.00 W | | **Speed** | 4500 RPM | | **Airflow** | 67.02 CFM (1.898 $m^3/min$) | | **Static Pressure** | 10.94 $mmH_2O$ | | **Noise Level** | 48.5 dB-A | --- ### 2. Electronic Interface & Wiring The "R00" suffix in the model number designates a specific electronic output signal configuration. * **Bearing System:** Two Ball Bearings (designed for long life and high-temperature stability). * **Termination:** Usually 3-wire or 4-wire lead wires. * **Sensor Output (R00):** This model features a **Lock Rotor Alarm (Sensor)**. * Unlike a Tachometer (FG) which sends a pulse per revolution, the **R00 (Reverse) signal** stays at a logical state when the fan is spinning and flips to a high/low state only when the fan motor is physically obstructed or stops spinning. #### Wire Color Coding (Typical): ```yaml Red: Positive (+12V) Black: Negative (GND) Blue: Locked Rotor Alarm Signal (R00) ``` --- ### 3. Key Electronic Features 1. **Brushless DC (BLDC) Motor:** Utilizes an integrated circuit (IC) for electronic commutation rather than mechanical brushes, reducing EMI and increasing lifespan. 2. **Polarity Protection:** Includes internal circuitry to prevent damage if the positive and negative leads are reversed. 3. **Locked Rotor Protection:** The internal IC automatically shuts off power to the coils if the blades are blocked to prevent the motor from burning out, then attempts a restart periodically. 4. **High-Efficiency Impeller:** The "FFB" series features directional vanes integrated into the housing to focus airflow and increase static pressure. ---