NF-A20 5V PWM

200x30mm, 5V premium fan

Award-winning quality, 20cm size

With 154mm, 110x180mm and 170mm hole spacing

SSO2 Bearing

Second generation of Noctua's renowned SSO bearing

5V PWM version

With USB power adaptor cable

Product line:

5V PWM version, not for use in PCs.
Key specifications
Size (Form factor)
200 x 200 x 30 mm
Speed range
350 – 800 rpm
Airflow (max.)
146.9 m³/h (86.46 CFM)
Acoustical noise (max.)
18.1 dB(A)
Static pressure (max.)
1.08 mm H₂O
Rated voltage
5 V
Input power (typical)
0.64 W
Connector
4-pin
Colour
Brown
Warranty
6 years
Scope of delivery
  • NA-EC1 30cm extension cable
  • 4x NA-AV3 anti-vibration mounts
  • USB power adaptor cable
  • OmniJoin™ adaptor set
  • Fan screws

Extended specifications

Mechanical specifications
Dimensions without anti-vibration pads
200 x 200 x 30 mm
Dimensions with anti-vibration pads
200 x 200 x 32 mm
Frame shape
Square
Mounting hole spacing(s)
170 x 170 mm, 154 x 154 mm, 110 x 180 mm
Weight
370 g
Material frame
PBT GF30
Material impeller
PP GF10
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
A2543-4PIN (or equal)
Cable length
200 mm
Cable length with extension cable (included)
500 mm
Wire
24 AWG
Sleeving
Fibreglass silicone mesh
Included adaptors
USB Type-A, OmniJoin™
Performance specifications
Rotational speed (max.)
800 rpm
Rotational speed @ 20% PWM
310 rpm
Rotational speed @ 0% PWM
350 rpm
Acoustical noise (max.)
18.1 dB(A)
Airflow (max.)
146.9 m³/h (86.46 CFM)
Static pressure (max.)
1.08 mm H₂O
Electrical specifications
Motor type (phases)
Single phase
Poles
4
Slots
4
Driver IC
NE-FD3
Rated voltage
5 V
Starting voltage
4 V
Max. operating voltage
5.5 V
Pin configuration
Diagram showing the pin configuration for Noctua 5V fans. The 3-pin fan uses yellow (RPM signal), red (+5V), and black (ground) wires. The 4-pin PWM fan uses blue (PWM signal), green (RPM speed signal), yellow (+5V), and black (ground) wires.
Pin 1
Black: Ground (GND)
Pin 2
Yellow: Voltage (Vcc)
Pin 3
Green: RPM Signal
Pin 4
Blue: PWM Signal
Input power (max)
0.85 W
Input power (typical)
0.64 W
Input current (max)
0.17 A
Input current (typical)
0.13 A
Safety, compliance & environmental specifications
Safety standards
EN62368-1
EMC standards
EN55032, EN55035
UL
CE
UKCA
TÜV
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
285 x 285 x 38 mm
Packaging weight (including product)
721 g
EAN
9010018100075
UPC
841500110079
Packaging unit
10 pcs
Packaging unit dimensions
315 x 300 x 420 mm
Packaging unit weight
8 kg