Description
The Delta BFB0305LA-CF00 (also known as BFB0305LACF00) is a high-precision, sub-compact DC brushless centrifugal blower fan housed in an ultra-low-profile 30 × 30 × 10 mm (1.18 × 1.18 × 0.39 in) scroll package. Operating on a nominal 5.0 VDC supply, it delivers a focused air delivery of 1.06 CFM (1.80 m³/h) and static head pressure of 0.144 in H₂O (35.9 Pa) at 5500 RPM with an average power consumption of just 0.45 W. Engineered for dependable micro-spot cooling, the unit integrates a precision dual ball bearing system, flame-retardant UL 94V-0 plastic housing and impeller, locked-rotor impedance protection, and reverse polarity safeguards. Electrical interface and speed feedback are provided via three UL 1571 AWG #30 lead wires including a dedicated open-collector frequency generator (FG) tachometer circuit.
Key Features
- Ultra-Compact Scroll: Engineered in a 30x30x10mm package delivering directional forced cooling in space-constrained microelectronics.
- Dual Ball Bearings: Heavy-duty dual ball bearing system guarantees an extended L10 operating life exceeding 30,000 hours.
- Integrated Tachometer Output: Open-collector frequency generator signal lead allows precise closed-loop RPM monitoring and fault detection.
- Comprehensive Circuit Safety: Built-in 96-hour locked rotor impedance shutdown and reverse polarity protection prevent thermal damage.
- Flame-Retardant Construction: Housing and curved blower impeller molded from high-grade UL 94V-0 thermoplastic for critical safety.
Technical Specifications
| Manufacturer | Delta |
|---|---|
| Manufacturer Part Number (MPN) | BFB0305LA-CF00 |
| Alternate Part Number | BFB0305LACF00 |
| Delta Safety Model Number | BFB0305LA-C |
| Product Series | BFB Series |
| Product Category | DC Blower Fans |
| Fan / Component Type | Centrifugal Blower Fan with Scroll Housing |
| Phase & Supply Type | Single-Phase DC Brushless |
| Rated Voltage | 5.0 VDC |
| Operating Voltage Range | 4.5 to 5.5 VDC |
| Rated Current | 0.09 A (Average) |
| Max. Current Draw | 0.13 A |
| Safety Label Current | 0.17 A |
| Rated Power | 0.45 W (Average) |
| Max. Input Power | 0.65 W |
| Speed (RPM) | 5500 RPM (±20%) |
| Airflow | 1.06 CFM (1.80 m³/h / 0.030 m³/min) |
| Min. Rated Airflow | 0.85 CFM (1.44 m³/h / 0.024 m³/min) |
| Static Pressure | 0.144 in H₂O (35.9 Pa / 3.66 mmH₂O) |
| Min. Static Pressure | 0.092 in H₂O (22.9 Pa / 2.34 mmH₂O) |
| Noise Level | 24.0 dB(A) (Average, 1 m) |
| Max. Acoustic Noise | 29.0 dB(A) (Max, 1 m) |
| Airflow Direction | Radial Scroll Discharge (Side Outlet) |
| 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 | 10.0 g (0.022 lbs / 0.35 oz) |
| Termination & Cable Specs | 3 Wire Leads, UL 1571 AWG #30 |
| Wiring Pinout / Connection | Red Wire: (+), Black Wire: (-), Blue Wire: (F00 Tachometer Output) |
| Control / Signal Features | Frequency Generator (FG) Tachometer Speed Sensor (Open Collector) |
| Tachometer Output Voltage (VFG) | 5.5 VDC Max. |
| Tachometer Sink Current (ID) | 5 mA Max. (VDS = 0.5 V Max.) |
| Motor Protection | Locked Rotor Protection (96 hrs withstand) & Over-Current Auto Shutdown |
| Polarity Protection | Reverse Polarity Protection |
| 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 50/60 Hz for 1 minute (frame to 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 | 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, REACH, Zero Ozone Depleting Substances |
Applications
The Delta BFB0305LA-CF00 miniature centrifugal blower is deployed in space-critical electronics requiring concentrated static pressure for targeted thermal dissipation. It is routinely integrated into handheld medical diagnostic instruments, compact embedded single-board computers (SBCs), optical transceivers, micro projection modules, and portable instrumentation chassis. Furthermore, maintenance and engineering teams specify this unit for spot-cooling hot SoC processors, telecommunication micro-repeaters, and dense IoT edge gateway enclosures.
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