Description
The Delta BFB1212GH-AF00 (also known as BFB1212GHAF00) is a high-pressure 12 VDC centrifugal blower fan engineered in a compact 120 x 120 x 32 mm (4.72 x 4.72 x 1.26 in) scroll housing. Operating across a wide 5.5 to 13.2 VDC input range, it delivers a rated speed of 4,400 RPM, producing 60.39 CFM (102.6 m³/h) of concentrated airflow and an extraordinary 4.094 in H₂O (1,019.9 Pa) of static pressure at nominal 39.6 W power consumption. Constructed with flame-retardant UL 94V-0 plastic housing and impeller, the assembly utilizes a precision dual ball bearing system delivering a continuous L10 service life of 50,000 hours at 40 °C. The unit is terminated with a 3-wire lead harness providing positive, negative, and an integrated open-collector Frequency Generator (FG) speed monitoring tachometer signal alongside locked-rotor and reverse polarity protection.
Key Features
- Extreme Static Pressure: Generates up to 4.094 in H₂O pressure to overcome densely packed thermal resistance.
- Dual Ball Bearings: Heavy-duty dual ball bearing system ensures 50,000 hours continuous service life at 40 °C.
- Tachometer Speed Output: Integrated 3rd-wire open-collector frequency generator outputs 8 pulses per revolution for active RPM monitoring.
- Flame-Retardant Construction: Both scroll casing and centrifugal impeller are molded from UL 94V-0 rated thermoplastic.
- Comprehensive Motor Protection: Built-in over-current shut down, 96-hour locked rotor fire protection, and reverse polarity resistance.
Technical Specifications
| Manufacturer | Delta |
|---|---|
| Manufacturer Part Number (MPN) | BFB1212GH-AF00 |
| Alternate Part Number | BFB1212GHAF00 |
| Product Series | BFB Series |
| Product Category | DC Blower Fans |
| Fan / Component Type | DC Brushless Centrifugal Scroll Blower |
| Motor Design | 8-Pole Brushless DC Motor |
| Supply Type | Direct Current (DC) |
| Rated Voltage | 12 VDC |
| Operating Voltage Range | 5.5 to 13.2 VDC |
| Rated Input Current | 3.30 A |
| Max. Current Draw | 3.96 A |
| Rated Input Power | 39.6 W |
| Max. Input Power | 47.52 W |
| Rated Speed (RPM) | 4400 RPM (Reference) |
| Max. Airflow (Zero Static Pressure) | 60.39 CFM (102.6 m³/h / 1.710 m³/min) |
| Min. Airflow Threshold | 54.35 CFM (92.3 m³/h / 1.539 m³/min) |
| Max. Static Pressure (Zero Airflow) | 4.094 in H₂O (1019.9 Pa / 104.00 mmH₂O) |
| Min. Static Pressure Threshold | 3.317 in H₂O (826.1 Pa / 84.24 mmH₂O) |
| Acoustical Noise Level (Average) | 65.0 dB(A) |
| Max. Acoustical Noise Level | 69.0 dB(A) |
| Noise Test Standard | B & K Sound Level Meter in Anechoic Chamber at 1.0 m Distance |
| Overall Dimensions (L × H × D) | 120.0 × 120.0 × 32.0 mm (4.72 × 4.72 × 1.26 in) |
| Discharge Outlet Dimensions | 60.0 × 26.7 mm (2.36 × 1.05 in) |
| Air Intake Diameter | Ø 76.0 mm (Ø 2.99 in) |
| Mounting Hole Configuration | 9 Mounting Holes, Ø 4.3 ± 0.2 mm |
| Mounting Hole Pitch | 88.0 × 105.0 mm / 90.0 × 92.0 mm |
| Housing Material | Plastic (UL 94V-0) |
| Impeller Material | Plastic (UL 94V-0) |
| Bearing System | Two Ball Bearings |
| Direction of Rotation | Clockwise (Viewed from Name Plate Side) |
| Cover Configuration | Open Type |
| Weight | 295 ± 10 g (0.650 lbs / 10.41 oz) |
| Termination / Lead Wire Specs | 3 Lead Wires, UL 1061 / UL 1430, AWG #24 / AWG #22 |
| Wiring Pinout | Red Wire: Positive (+), Black Wire: Negative (-), Blue Wire: Frequency Generator (FG) |
| Signal / Control Feature | Frequency Generator (FG) Tachometer Speed Sensor |
| FG Signal Circuit Type | Open Collector (VCE(sat) ≤ 0.5V, VCC ≤ 13.2V, IC ≤ 5mA) |
| FG Waveform Characteristics | 8 Pulses per Revolution (TS = 60 / N sec) |
| Locked Rotor Protection | Automatic Current Shut Down; Impedance Protected Against Fire for 96 Hours |
| Polarity Protection | Withstands Reverse Connection on DC Supply Leads |
| Insulation Class | UL: Class A |
| Insulation Resistance | ≥ 10 MΩ at 500 VDC (Between Frame and (+) Terminal) |
| Dielectric Strength | 5 mA Max. at 500 VAC, 60 Hz for 1 Minute (Between Frame and (+) Terminal) |
| Operating Temperature Range | -10 °C to +60 °C (14 °F to 140 °F) |
| Storage Temperature Range | -40 °C to +75 °C (-40 °F to 167 °F) |
| Operating Humidity Range | 5% to 90% RH (Non-Condensing) |
| Storage Humidity Range | 5% to 95% RH |
| Service Life (L10 Expectancy) | 50,000 Hours Continuous Operation at 40 °C (15% to 65% RH) |
| Environmental & Material Compliance | RoHS Compliant; Free of PBBs, PBBOs, CFCs, PBBEs, PBDPEs, HCFCs |
| Safety Certifications | UL, CSA, VDE, CE |
Applications
The Delta BFB1212GH-AF00 centrifugal blower is engineered for forced-air spot thermal cooling across high-impedance industrial electronics, medical equipment, and telecommunication systems. It is extensively deployed in telecom base stations, high-density server power supplies, semiconductor burn-in chambers, and automated 3D printing extrusion heads where ducted, high-static pressure is required. Maintenance and operations teams utilize this blower for OEM system assembly and field retrofit in laser projection chassis, lab analyzers, and closed-loop electronic enclosures.
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