The WELLSUNFAN WD04020 DC Blower Fan is a compact, high-efficiency centrifugal cooling fan designed for reliable thermal management in electronic devices, industrial equipment, medical systems, and communication hardware. With a 40 × 40 × 20 mm form factor, it delivers powerful airflow, high static pressure, and low noise, making it an ideal solution for applications where efficient cooling is required in limited installation spaces.Manufactured with UL94V-0 flame-retardant plastic, the WD04020 offers exceptional durability, long service life, and customizable features such as PWM speed control, FG speed signal, RD lock rotor detection, and IP56 protection, making it suitable for demanding OEM and industrial applications.
Compact 40 × 40 × 20 mm (1.6 × 0.8 inch) design
High-efficiency centrifugal airflow for superior cooling
Durable UL94V-0 flame-retardant plastic housing and impeller
Available with ball bearing or sleeve bearing
Low power consumption and quiet operation
Long service life of up to 70,000 hours
| Specification | Details |
|---|---|
| Product Model | WD04020 |
| Fan Type | DC Blower Fan |
| Dimensions | 40 × 40 × 20 mm (1.6 × 0.8 in) |
| Frame Material | UL94V-0 Flame-Retardant Plastic |
| Impeller Material | UL94V-0 Flame-Retardant Plastic |
| Bearing Options | Ball Bearing / Sleeve Bearing |
| Lead Wire | UL1007 AWG#26 (Red + / Black -) |
| Weight | 26 g |
| Model | Rated Voltage | Operating Voltage | Current | Power | Speed | Airflow | Air Pressure | Noise |
|---|---|---|---|---|---|---|---|---|
| WD04020#5M | 5V DC | 3.5–5.5V | 0.15A | 0.75W | 4,200 RPM | 2.90 CFM | 4.83 mmH₂O | 25 dBA |
| WD04020#5L | 5V DC | 3.5–5.5V | 0.10A | 0.50W | 3,000 RPM | 2.50 CFM | 6.35 mmH₂O | 23 dBA |
| WD04020#12H | 12V DC | 7.0–13.8V | 0.11A | 1.32W | 6,000 RPM | 4.10 CFM | 9.40 mmH₂O | 34 dBA |
| WD04020#12M | 12V DC | 7.0–13.8V | 0.09A | 1.08W | 5,300 RPM | 3.50 CFM | 6.86 mmH₂O | 29 dBA |
| WD04020#12L | 12V DC | 7.0–13.8V | 0.06A | 0.72W | 4,200 RPM | 2.90 CFM | 4.83 mmH₂O | 25 dBA |
| WD04020#24H | 24V DC | 14–27.6V | 0.10A | 2.40W | 6,000 RPM | 4.10 CFM | 9.40 mmH₂O | 34 dBA |
| WD04020#24M | 24V DC | 14–27.6V | 0.08A | 1.92W | 5,300 RPM | 3.50 CFM | 6.86 mmH₂O | 29 dBA |
| WD04020#24L | 24V DC | 14–27.6V | 0.05A | 1.20W | 4,200 RPM | 2.90 CFM | 4.83 mmH₂O | 25 dBA |
Up to 70,000 hours service life at 20°C
Suitable for continuous-duty industrial applications
Up to 30,000 hours service life at 20°C
Cost-effective cooling solution
| Parameter | Specification |
|---|---|
| Operating Temperature | -10°C to +70°C |
| Storage Temperature | -40°C to +70°C |
| Humidity | Non-condensing |
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The WELLSUNFAN WD04020 DC Blower Fan is a compact, high-efficiency centrifugal cooling fan designed for reliable thermal management in electronic devices, industrial equipment, medical systems, and communication hardware. With a 40 × 40 × 20 mm form factor, it delivers powerful airflow, high static pressure, and low noise, making it an ideal solution for applications where efficient cooling is required in limited installation spaces.Manufactured with UL94V-0 flame-retardant plastic, the WD04020 offers exceptional durability, long service life, and customizable features such as PWM speed control, FG speed signal, RD lock rotor detection, and IP56 protection, making it suitable for demanding OEM and industrial applications.
Compact 40 × 40 × 20 mm (1.6 × 0.8 inch) design
High-efficiency centrifugal airflow for superior cooling
Durable UL94V-0 flame-retardant plastic housing and impeller
Available with ball bearing or sleeve bearing
Low power consumption and quiet operation
Long service life of up to 70,000 hours
| Specification | Details |
|---|---|
| Product Model | WD04020 |
| Fan Type | DC Blower Fan |
| Dimensions | 40 × 40 × 20 mm (1.6 × 0.8 in) |
| Frame Material | UL94V-0 Flame-Retardant Plastic |
| Impeller Material | UL94V-0 Flame-Retardant Plastic |
| Bearing Options | Ball Bearing / Sleeve Bearing |
| Lead Wire | UL1007 AWG#26 (Red + / Black -) |
| Weight | 26 g |
| Model | Rated Voltage | Operating Voltage | Current | Power | Speed | Airflow | Air Pressure | Noise |
|---|---|---|---|---|---|---|---|---|
| WD04020#5M | 5V DC | 3.5–5.5V | 0.15A | 0.75W | 4,200 RPM | 2.90 CFM | 4.83 mmH₂O | 25 dBA |
| WD04020#5L | 5V DC | 3.5–5.5V | 0.10A | 0.50W | 3,000 RPM | 2.50 CFM | 6.35 mmH₂O | 23 dBA |
| WD04020#12H | 12V DC | 7.0–13.8V | 0.11A | 1.32W | 6,000 RPM | 4.10 CFM | 9.40 mmH₂O | 34 dBA |
| WD04020#12M | 12V DC | 7.0–13.8V | 0.09A | 1.08W | 5,300 RPM | 3.50 CFM | 6.86 mmH₂O | 29 dBA |
| WD04020#12L | 12V DC | 7.0–13.8V | 0.06A | 0.72W | 4,200 RPM | 2.90 CFM | 4.83 mmH₂O | 25 dBA |
| WD04020#24H | 24V DC | 14–27.6V | 0.10A | 2.40W | 6,000 RPM | 4.10 CFM | 9.40 mmH₂O | 34 dBA |
| WD04020#24M | 24V DC | 14–27.6V | 0.08A | 1.92W | 5,300 RPM | 3.50 CFM | 6.86 mmH₂O | 29 dBA |
| WD04020#24L | 24V DC | 14–27.6V | 0.05A | 1.20W | 4,200 RPM | 2.90 CFM | 4.83 mmH₂O | 25 dBA |
Up to 70,000 hours service life at 20°C
Suitable for continuous-duty industrial applications
Up to 30,000 hours service life at 20°C
Cost-effective cooling solution
| Parameter | Specification |
|---|---|
| Operating Temperature | -10°C to +70°C |
| Storage Temperature | -40°C to +70°C |
| Humidity | Non-condensing |
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