Description
Delta AFB0412VHB is a high-speed compact DC tubeaxial cooling fan engineered in a square 40 x 40 x 15 mm (1.58 x 1.58 x 0.59 in) profile for space-constrained electronics. Driven by a brushless two-phase, four-pole motor operating on a 7.0 to 13.8 VDC supply, it delivers an airflow of 13.00 CFM (22.09 m³/h) and static back pressure of 0.459 in H₂O (114.3 Pa) at 9,500 RPM. The unit features dual precision ball bearings, UL 94V-0 flame-retardant thermoplastic housing and impeller, 340 mm AWG 24 lead wires, and comprehensive locked-rotor and reverse polarity protection.
Key Features
- High Static Pressure Aerodynamics: Generates 13.00 CFM airflow and 0.459 in H₂O pressure at 9,500 RPM for dense enclosures.
- Dual Ball Bearing Architecture: Delivers robust rotational stability with a continuous service life rating of 70,000 hours at 40°C.
- Integrated Circuit Safeguards: Built-in impedance locked-rotor protection protects windings for 96 hours alongside reverse polarity defense.
- Flame-Retardant Thermoplastic: Reinforced UL 94V-0 rated PBT frame and impeller construction ensure structural durability and flammability compliance.
- Extended Flying Lead Termination: Pre-stripped 340 mm 24 AWG wiring harness simplifies DC terminal block and PCB connector assembly.
Technical Specifications
| Manufacturer | Delta |
|---|---|
| Manufacturer Part Number (MPN) | AFB0412VHB |
| Product Series | AFB Series |
| Product Category | DC Axial Fans |
| Fan / Component Type | DC Tubeaxial Fan |
| Motor Design | Brushless DC Motor (2-Phase, 4-Pole) |
| Supply Type | DC |
| Rated Voltage | 12 VDC |
| Operating Voltage Range | 7.0 to 13.8 VDC |
| Rated Current | 0.16 A |
| Max. Current Draw | 0.24 A |
| Rated Input Power | 1.92 W |
| Max. Input Power | 2.88 W |
| Speed (RPM) | 9500 RPM (±10%) |
| Airflow | 13.00 CFM (0.368 m³/min / 22.08 m³/h) |
| Min. Airflow | 11.69 CFM (0.331 m³/min / 19.86 m³/h) |
| Static Pressure | 0.459 in H₂O (11.66 mmH₂O / 114.3 Pa) |
| Min. Static Pressure | 0.372 in H₂O (9.44 mmH₂O / 92.6 Pa) |
| Noise Level | 36.5 dB(A) |
| Max. Noise Level | 41.5 dB(A) |
| Dimensions (L × H × D) | 40.0 × 40.0 × 15.0 mm (1.575 × 1.575 × 0.591 in) |
| Mounting Hole Pitch | 32.0 × 32.0 mm (1.260 × 1.260 in) |
| Mounting Hole Diameter | 4 × Ø 3.5 mm (Ø 0.138 in) |
| Housing Material | Plastic (UL 94V-0) |
| Impeller Material | Plastic (UL 94V-0) |
| External Cover Type | Open Type |
| Bearing Type | Two Ball Bearings |
| Direction of Rotation | Clockwise (viewed from nameplate side) |
| Weight | 25.0 g (0.055 lbs) |
| Termination Type | 2 Wire Leads |
| Lead Wire Gauge | 24 AWG (UL 1007) |
| Lead Wire Length | 340.0 mm (13.386 in) |
| Stripped Lead Length | 10.0 mm (0.394 in) |
| Wiring Pinout | Red Wire = Positive (+), Black Wire = Negative (-) |
| Motor Protection | Impedance Locked Rotor Protection (96 Hours at Rated Voltage) |
| Reverse Polarity Protection | Capable of withstanding reverse lead connection |
| Insulation Class | UL Class A |
| Insulation Resistance | Min. 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) |
| Service Life (L10) | 70,000 Hours continuous operation at 40°C (15–65% RH) |
| 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 |
| Environmental Compliance | RoHS Compliant, Lead-Free, Free of PBBs, PBBOs, CFCs, PBBEs, PBDPEs, HCFCs |
| Safety Approvals | CE, CSA, UL, VDE |
Applications
Delta AFB0412VHB is engineered for high-density thermal management across compact industrial electronics and telecommunications hardware. It serves as primary spot cooling for 1U rack-mount network switches, optical transceivers, embedded computing motherboards, and power over Ethernet injectors. The compact form factor also provides essential forced-air exhaust inside medical diagnostic instruments, micro-inverters, and tightly packaged industrial automation controllers.
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