## Technical Specifications of EFB0612LA-R00 The **EFB0612LA-R00** is a high-performance DC axial fan manufactured by **Delta Electronics**. It is part of the EFB series, known for its "Triple Blade" design which enhances airflow and pressure efficiency. --- ### 1. Key Technical Parameters | Feature | Specification | | :--- | :--- | | **Frame Size** | 60mm x 60mm x 10mm | | **Rated Voltage** | 12 VDC | | **Operating Voltage Range** | 7.0 to 13.8 VDC | | **Rated Current** | 0.07 A (Max 0.11 A) | | **Rated Input Power** | 0.84 W | | **Speed** | 3200 RPM | | **Maximum Air Flow** | 12.36 CFM (0.350 m³/min) | | **Maximum Air Pressure** | 1.80 mmH2O (0.071 IN H2O) | | **Noise Level** | 24.5 dB-A | | **Bearing Type** | Dual Ball Bearing | --- ### 2. Electronic Signal Features: The "-R00" Suffix The suffix **-R00** in the model number designates a specific electronic output configuration: * **Sensor Type:** **Locked Rotor Sensor (Alarm Signal)**. * **Function:** Unlike a tachometer (which measures speed), the R00 sensor acts as an "Alarm High" or "Alarm Low" signal. * **Behavior:** When the fan is spinning normally, the signal output stays at a specific logic level. If the fan blades are obstructed and the motor stops (Locked Rotor), the output signal flips (typically to "High"), alerting the system to a thermal failure. * **Wire Configuration:** 3-Wire system. * **Red:** Positive (+12V) * **Black:** Negative (GND) * **Blue:** R00 Sensor Signal (Open Collector) --- ### 3. Construction and Protection * **Material:** The frame and impeller are made of UL 94V-0 plastic (fiberglass reinforced). * **Motor Type:** Brushless DC motor with electronic commutation. * **Protections:** * **Polarity Protection:** Prevents damage if the (+) and (-) wires are accidentally reversed. * **Locked Rotor Protection:** The motor will automatically attempt to restart after the obstruction is removed, preventing the internal coils from burning out. --- ### 4. Application Use Cases Due to its low profile (10mm thickness) and reliability, the EFB0612LA-R00 is commonly used in: 1. **Network Switches/Routers:** Where vertical space is limited. 2. **Industrial Controllers:** Where the dual ball bearing ensures a long lifespan (approx. 70,000 hours). 3. **Power Supplies:** Providing active cooling to sensitive electronics.