Description
The Delta AFB03512HA-A (also known as AFB03512HAA) is an ultra-compact brushless DC axial cooling fan engineered in a low-profile 35 x 35 x 10 mm (1.38 x 1.38 x 0.39 in) tubeaxial frame. Operating on a 12 VDC supply across an operating range of 9.5 to 13.8 VDC, it delivers an aerodynamic output of 5.50 CFM (9.36 m³/h) and 0.106 in H₂O (26.48 Pa) static pressure at a rated speed of 7000 RPM. Constructed with flame-retardant UL 94V-0 thermoplastic housing and impeller blades, the assembly incorporates dual precision ball bearings for continuous industrial service life rated at 30,000 hours at 40°C. Internal circuitry provides robust locked rotor impedance protection and reverse polarity tolerance, terminating in two 150 mm UL 1061 AWG 26 lead wires.
Key Features
- Dual Ball Bearings: Engineered with precision dual ball bearings ensuring 30,000 operating hours at 40°C in any mounting orientation.
- High Static Efficiency: Generates 5.50 CFM airflow and 0.106 in H₂O back pressure within an ultra-thin 10 mm profile.
- Flame-Retardant Construction: Molded with high-grade UL 94V-0 certified thermoplastic frame and impeller for enhanced equipment fire safety.
- Integrated Circuit Protection: Features 96-hour locked rotor winding impedance protection and full reverse polarity connection safeguarding.
- Low Acoustic Profile: Operates at an ultra-quiet 22.0 dB(A) nominal acoustic noise floor suitable for sensitive instrumentation.
Technical Specifications
| Manufacturer | Delta |
|---|---|
| Manufacturer Part Number (MPN) | AFB03512HA-A |
| Alternate Part Number | AFB03512HAA |
| Safety Model Number | AFB03512HA |
| Product Series | AFB Series |
| Product Category | DC Axial Fans |
| Fan / Component Type | DC Brushless Tubeaxial Fan |
| Phase & Supply Type | Direct Current (DC) |
| Rated Voltage | 12 VDC |
| Operating Voltage Range | 9.5 to 13.8 VDC |
| Rated Current | 0.09 A |
| Max. Current Draw | 0.14 A |
| Label Safety Current | 0.14 A |
| Nominal Input Power | 1.08 W |
| Max. Input Power | 1.68 W |
| Rated Speed | 7000 RPM ± 15% |
| Airflow (Nominal) | 5.50 CFM (9.36 m³/h / 0.156 m³/min) |
| Static Pressure (Nominal) | 0.106 in H₂O (26.48 Pa / 2.70 mmH₂O) |
| Acoustical Noise Level (Avg.) | 22.0 dB(A) |
| Max. Acoustical Noise Level | 28.0 dB(A) |
| Direction of Airflow | Axial (Intake over struts, exhaust over hub) |
| Direction of Rotation | Clockwise (viewed from nameplate side) |
| Dimensions (L × H × D) | 35.0 × 35.0 × 10.0 mm (1.378 × 1.378 × 0.394 in) |
| Mounting Hole Pitch | 29.0 ± 0.3 mm (1.142 ± 0.012 in) |
| Mounting Hole Diameter | 4 × Ø3.2 ± 0.3 mm (4 × Ø0.126 ± 0.012 in) |
| Frame Flange Thickness | 2.0 ± 0.3 mm (0.078 ± 0.012 in) |
| Frame Material | Plastic (UL 94V-0) |
| Impeller Material | Plastic (UL 94V-0) |
| Bearing Type | Two Ball Bearings |
| Operating Mode / Duty Cycle | Continuous (S1) |
| Weight | 10.0 g (0.022 lbs / 0.35 oz) |
| Termination & Cable Specs | 2 Wire Leads, UL 1061 AWG 26, Stripped ends |
| Cable Length | 150.0 ± 10.0 mm (5.906 ± 0.394 in) |
| Wiring Pinout / Connection | Red Wire: Positive (+); Black Wire: Negative (-) |
| Motor Protection | Locked Rotor Protection (96 Hours at rated voltage), 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 (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 | 65% RH nominal (tested up to 98% RH non-condensing) |
| Service Life (L10 Expectancy) | 30,000 Hours continuous operation at 40°C, 65% RH |
| Standards & Compliance | CE, CSA, UL Recognized, VDE, RoHS3 Compliant |
Applications
The Delta AFB03512HA-A miniature axial fan is purpose-built for thermal management in space-constrained electronic architectures such as network switches, 1U rackmount router chassis, and high-density telecom optical transceivers. It is widely specified by OEMs in medical diagnostic equipment, handheld analytic devices, and compact embedded industrial PCs requiring dependable spot cooling. Additionally, facility maintenance teams rely on this fan for replacement in micro-inverters, CCTV control hardware, and compact security power supplies.
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