## Technical Overview: Delta AFB0612HHB-R00 The **AFB0612HHB-R00** is a high-performance DC axial fan manufactured by Delta Electronics. It belongs to the AFB series, which is known for using dual ball bearings and providing a balance between high airflow and reliability in compact spaces. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Frame Size** | 60mm x 60mm x 15mm | | **Rated Voltage** | 12 VDC | | **Operating Voltage Range** | 7.0 ~ 13.8 VDC | | **Rated Current** | 0.17 A (Max 0.25 A) | | **Input Power** | 2.04 W | | **Speed** | 4500 RPM | | **Max Airflow** | 17.37 CFM (0.492 m³/min) | | **Max Static Pressure** | 4.97 mmH2O (0.196 inH2O) | | **Noise Level** | 35.0 dB-A | | **Bearing Type** | Dual Ball Bearing | --- ### 2. Electronic Interface and Wiring The suffix **-R00** is a specific Delta designation regarding the output signal. * **Three-Wire Interface:** This fan typically features three wires. * **Red:** Positive (+) 12V. * **Black:** Negative (-) Ground. * **White/Blue:** Sensor Signal (Lock Sensor). * **The "R00" Signal (Lock Sensor):** Unlike the "F00" (Tachometer/Frequency) signal which measures RPM, the **R00** signal is a **Lock Detection** output. * Under normal rotation, the signal stays at a specific logic level. * If the fan motor stops (locked rotor), the signal flips to indicate a failure. This is used for safety shutdowns in servers or industrial equipment. --- ### 3. Electronic Protection Features Delta incorporates several protective circuits into the PCB of the AFB series: 1. **Locked Rotor Protection:** The motor automatically attempts to restart after a blockage is cleared. It prevents the internal coils from overheating if the blades are physically obstructed. 2. **Polarity Protection:** Protects the fan electronics if the positive and negative leads are accidentally reversed (to a limited threshold). 3. **Brushless DC (BLDC) Motor Controller:** The internal IC handles the electronic commutation of the phases, eliminating the need for mechanical brushes and extending the lifespan to roughly 70,000 hours at 40°C. --- ### 4. Materials and Construction * **Impeller & Frame:** Glass fiber reinforced plastic (UL 94V-0). * **Lead Wires:** UL 1007 AWG #24 or equivalent. * **Operating Temperature:** -10°C to +70°C. ---