Description
Delta BFB0512MD-F00 (also known as BFB0512MDF00) is a compact 50 x 50 x 20 mm (1.97 x 1.97 x 0.79 in) DC centrifugal blower fan engineered with a single-phase, four-pole brushless motor housed inside a precision scroll enclosure. Operating on a nominal 12 VDC supply (5.0 to 13.8 VDC range), it delivers 4.91 CFM (8.34 m³/h) of focused airflow and 0.387 in H₂O (96.3 Pa) maximum static pressure at a rated speed of 4100 RPM while drawing 1.56 W. The unit is constructed with flame-retardant UL 94V-0 plastic for both frame and impeller, dual precision ball bearings rated for 50,000 hours of continuous operation at 40 °C, and integrated locked-rotor and reverse polarity protections. Electrical interface is provided via three 26 AWG lead wires, incorporating a dedicated third-wire open-collector frequency generator (tachometer) speed sensor.
Key Features
- Dual Ball Bearing Architecture: Delivers long-term continuous reliability with an L10 life expectancy of 50,000 hours at 40 °C ambient conditions.
- High-Pressure Scroll Aerodynamics: Generates targeted static pressure of 0.387 in H₂O to drive forced air through dense thermal obstacles.
- Integrated Tachometer Output: Features an open-collector frequency generator third wire providing two pulses per revolution for real-time host speed monitoring.
- Comprehensive Motor Protection: Incorporates reverse polarity shielding and locked rotor protection with automatic current shutdown to prevent winding burnout.
- Flame-Retardant Construction: Molded from UL 94V-0 certified thermoplastic frame and impeller materials ensuring strict industrial safety compliance.
Technical Specifications
| Manufacturer | Delta |
|---|---|
| Manufacturer Part Number (MPN) | BFB0512MD-F00 |
| Alternate Part Number | BFB0512MDF00 |
| Product Series | BFB Series |
| Product Category | DC Blower Fans |
| Fan / Component Type | DC Brushless Centrifugal Scroll Blower |
| Phase & Motor Type | Single-Phase, 4-Pole Brushless DC Motor |
| Rated Voltage | 12 VDC |
| Operating Voltage Range | 5.0 to 13.8 VDC |
| Rated Current | 0.13 A |
| Max. Current Draw | 0.16 A |
| Power Rating | 1.56 W |
| Max. Input Power | 1.92 W |
| Speed (RPM) | 4100 RPM (Reference) |
| Max. Airflow (Zero Static Pressure) | 4.91 CFM (0.139 m³/min / 8.34 m³/h) |
| Min. Airflow Specification | 4.42 CFM (0.125 m³/min / 7.50 m³/h) |
| Max. Static Pressure (Zero Airflow) | 0.387 in H₂O (9.82 mmH₂O / 96.3 Pa) |
| Min. Static Pressure Specification | 0.313 in H₂O (7.95 mmH₂O / 77.9 Pa) |
| Noise Level (Average) | 32.0 dB(A) |
| Max. Acoustical Noise | 36.0 dB(A) |
| Dimensions (L × H × D) | 50.0 × 50.0 × 20.0 mm (1.97 × 1.97 × 0.79 in) |
| Housing / Frame Material | Plastic (UL 94V-0) |
| Impeller Material | Plastic (UL 94V-0) |
| Bearing Type | Two Ball Bearings |
| Direction of Rotation | Clockwise (viewed from nameplate side) |
| Weight | 35 g (0.077 lbs / 1.23 oz) |
| Termination & Cable Specs | 3 Lead Wires, UL 1061 AWG #26 |
| Wiring Pinout / Connection | Black: Negative (-), Red: Positive (+), Blue: Frequency Generator / Tachometer (-F00) |
| Control / Signal Features | Frequency Generator (FG) Tachometer Output |
| FG Signal Circuit Type | Open Collector (Vce(sat) 0.5V max, Vfg 15VDC max, Ic 5mA max) |
| FG Signal Pulses Per Revolution | 2 Pulses per Revolution (4 Poles) |
| Motor Protection | Locked Rotor Protection (Electronic Current Shutdown / 96-Hour Impedance Protection) |
| Reverse Polarity Protection | Protected against Reverse Lead Connection |
| Insulation Class | UL Class A |
| Insulation Resistance | 10 MΩ Min. at 500 VDC (between frame and positive terminal) |
| Dielectric Strength | 5 mA Max. at 500 VAC 60 Hz for 1 Minute (between frame and positive terminal) |
| Operating Temperature | -10 °C to +70 °C (14 °F to 158 °F) |
| Storage Temperature | -40 °C to +75 °C (-40 °F to 167 °F) |
| Operating Humidity Range | 5% to 90% RH |
| Storage Humidity Range | 5% to 95% RH |
| Service Life (L10) | 50,000 Hours Continuous Operation at 40 °C (15% to 65% RH) |
| Certifications & Approvals | UL, CSA, VDE, CE, RoHS Compliant |
Applications
Delta BFB0512MD-F00 is deployed across space-restricted thermal architectures that require high static pressure to overcome tightly packed heat sinks and narrow internal ductwork. Typical installations include 1U rackmount server chassis, network communication appliances, embedded single-board computers, robotic controller modules, and desktop 3D printer hotend assemblies. It also serves as an essential component for spot-cooling microprocessors and power transistors within medical analytical instruments, telecom rectifiers, and factory automation electronics.
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