NF-A4x20 5V
40x20mm, 5V premium fan
Compact 40x20mm size
Ideal for 1U applications or replacing noisy 4cm fans
Quiet cooling performance
Outstanding airflow and pressure at minimum noise levels
5V version
With OmniJoin adaptor for use with proprietary fan headers
Key specifications
Size (Form factor) | 40 x 40 x 20 mm |
Speed range | 0 – 5000 rpm |
Airflow (max.) | 9.4 m³/h (5.53 CFM) |
Acoustical noise (max.) | 14.9 dB(A) |
Static pressure (max.) | 2.26 mm H₂O |
Rated voltage | 5 V |
Input power (typical) | 0.42 W |
Connector | 3-pin |
Colour | Brown |
Warranty | 6 years |
Scope of delivery
- NA-EC2 30cm extension cable
- OmniJoin™ adaptor set
- 4x NA-AV3 anti-vibration mounts
- Fan screws
Extended specifications
Mechanical specifications
Dimensions without anti-vibration pads | 40 x 40 x 20 mm |
Dimensions with anti-vibration pads | 40 x 40 x 22 mm |
Mounting hole spacing(s) | 32 x 32 mm |
Weight | 20 g |
Material frame | PBT GF30 |
Material impeller | PP GF30 |
Material anti-vibration pads | Silicone rubber |
Bearing | SSO2 |
Rotational direction | Counter-clockwise |
Frame colour | Beige |
Impeller colour | Brown |
Anti-vibration pads colour | Brown |
Connector type | A2543-3PIN (or equal) |
Cable length | 200 mm |
Cable length with extension cable (included) | 500 mm |
Wire | 26 AWG |
Sleeving | Fibreglass silicone mesh |
Included adaptors | OmniJoin™ |
Performance specifications
Rotational speed (max.) | 5000 rpm |
Acoustical noise (max.) | 14.9 dB(A) |
Airflow (max.) | 9.4 m³/h (5.53 CFM) |
Static pressure (max.) | 2.26 mm H₂O |
Electrical specifications
Motor type (phases) | Single phase |
Poles | 4 |
Slots | 4 |
Rated voltage | 5 V |
Starting voltage | 4 V |
Max. operating voltage | 5.5 V |
Pin configuration |  |
Pin 1 | Black: Ground (GND) |
Pin 2 | Red: Voltage (Vcc) |
Pin 3 | Yellow: RPM Signal |
Input power (max) | 0.5 W |
Input power (typical) | 0.42 W |
Input current (max) | 0.1 A |
Input current (typical) | 0.08 A |
Safety, compliance & environmental specifications
Safety standards | EN62368-1 |
EMC standards | EN55032, EN55035 |
UL | |
CE | |
UKCA | |
Production Standards | ISO 9001 & ISO 14001 |
Flammability | UL 94 V-0 |
REACH | |
RoHS | |
CMRT | |
EMRT | |
Ingress protection | IP50 |
Operating temperature | -10°C to +70°C |
Operating humidity | 15 – 90 % |
Storage temperature | -20°C to +75°C |
Storage humidity | 15 – 90 % |
MTTF | > 150,000 h |
Locked rotor protection | Auto power off after locked at rated voltage for 1 sec. After auto power off, the circuit attempts to restart in 2 to 6 sec. |
Polarity protection | Open circuit when Vcc & GND are exchanged. Circuit won't be burned within 5 sec when Vcc & GND are exchanged. |
Over voltage protection | |
Over current protection | |
Insulation resistance | 10 MΩ / between unshielded wire and frame at 500 VDC/min |
Dielectric strength | 5 mA max. / measured between lead wire (+) and frame at 500 VAC/min |
Logistical specifications
Packaging dimensions | 23 x 140 x 110 mm |
Packaging weight (including product) | 76 g |
EAN | 9010018100129 |
UPC | 841500110123 |
Packaging unit | 36 pcs |
Packaging unit dimensions | 170x450x240 mm |
Packaging unit weight | 3.5 kg |