Description
The Delta BFB0305HHA-C (also known as BFB0305HHAC) is an ultra-compact, precision DC brushless centrifugal scroll blower measuring 30 x 30 x 10 mm (1.18 x 1.18 x 0.39 in). Operating on a nominal 5.0 VDC supply with a 4.5 to 5.5 VDC range, it delivers 1.66 CFM (2.82 m³/h) of targeted forced-air cooling and generates up to 0.370 in H₂O (92.2 Pa) of static pressure at 8,500 RPM with an average power draw of just 1.15 W. Engineered with dual precision ball bearings and flame-retardant UL 94V-0 thermoplastic housing and impeller, the blower ensures robust thermal reliability across dense packaging layouts. Electrical safety and endurance are reinforced through impedance-protected locked rotor circuitry, reverse polarity protection, and UL 1571 AWG #30 lead wires.
Key Features
- High-Static Micro Blower: Produces 0.370 in H₂O static pressure and 1.66 CFM airflow to penetrate restricted micro-ducts.
- Dual Ball Bearing System: Ensures continuous 30,000-hour L10 operating life at 40°C in high-reliability compact electronic enclosures.
- Flame-Retardant Construction: Built with UL 94V-0 reinforced thermoplastic housing and impeller for superior structural safety.
- Integrated Circuit Protection: Features impedance-based locked rotor protection for up to 96 hours alongside reverse polarity tolerance.
- Ultra-Compact Envelope: Designed with a space-saving 30x30x10 mm profile ideal for tightly packaged portable instrumentation.
Technical Specifications
| Manufacturer | Delta |
|---|---|
| Manufacturer Part Number (MPN) | BFB0305HHA-C |
| Alternate Part Number | BFB0305HHAC |
| Product Series | BFB Series |
| Product Category | DC Blower Fans |
| Fan / Component Type | DC Brushless Centrifugal Scroll Blower |
| Phase & Supply Type | Direct Current (DC) |
| Rated Voltage | 5.0 VDC |
| Operating Voltage Range | 4.5 to 5.5 VDC |
| Rated Current | 0.23 A |
| Max. Current Draw | 0.35 A |
| Power Rating | 1.15 W |
| Max. Input Power | 1.75 W |
| Speed (RPM) | 8500 RPM (±20%) |
| Airflow | 1.66 CFM (0.047 m³/min / 2.82 m³/h) |
| Min. Airflow (Zero Static Pressure) | 1.34 CFM (0.038 m³/min) |
| Static Pressure | 0.370 in H₂O (92.2 Pa / 9.40 mmH₂O) |
| Min. Static Pressure (Zero Airflow) | 0.237 in H₂O (59.0 Pa / 6.02 mmH₂O) |
| Noise Level | 31.0 dB(A) |
| Max. Acoustical Noise | 36.0 dB(A) |
| Dimensions (L × H × D) | 30.0 × 30.0 × 10.0 mm (1.18 × 1.18 × 0.39 in) |
| Housing 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 | 11.0 g (0.024 lbs) |
| Termination & Cable Specs | 2 Lead Wires, UL 1571 AWG #30 |
| Wiring Pinout / Connection | Red Wire (+), Black Wire (-) |
| Motor Protection | Impedance Protected (96 hours locked rotor at rated voltage), Over Current Shutdown |
| Polarity Protection | Reverse Polarity Withstanding Protection |
| Insulation Resistance | 10 MΩ min. at 500 VDC (between frame and (+) terminal) |
| Dielectric Strength | 5 mA max. at 500 VAC 50/60 Hz for 1 minute (between frame and (+) 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 | 5% to 90% RH |
| Storage Humidity | 5% to 95% RH |
| Service Life (L10) | 30,000 Hours continuous operation at 40°C (15% to 65% RH) |
| Standards & Compliance | CE, cURus, TUV, RoHS3 Compliant, Halogen/ODS-Free |
Applications
The Delta BFB0305HHA-C blower is engineered for precision localized cooling within space-constrained industrial electronics, handheld diagnostic instruments, and embedded micro-computing modules. It is frequently deployed in compact telecom transceivers, portable medical analyzers, micro-projectors, and optical test equipment where high static pressure is needed to evacuate heat through dense heat sinks and narrow internal channels. OEM designers and facility technicians utilize this micro blower to prevent thermal throttling in high-density sensor arrays and miniature automation control interfaces.
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