LD Customized DC4020 is a small 40×40×20mm DC axial cooling fan, featuring ultra-compact size, medium to high air pressure, high rotational speed, and long lifespan, making it a mainstream choice for cooling compact devices.Suitable for PCB board-level, module-level, and handheld devices with extremely limited space.

DC4020 Parameter Customization

Size:40*40*20mm;

Voltage:5V/12V/24V;

Bearing:Ball Bearing/Sleeve Bearing/Hydraulic Bearing;

Materials:PBT;

Power:0.5~3.6W;

Speed:5000~12000RPM;

CFM:7.2~17.2CFM;

Noise:21~41db;

LDDC4020 accepts the following customizations ：

Fan Frame and Blade Material

Fan Label

Fan wiring harness, cable length, terminals

Speed/Airflow

LDDC4020 Design Parameters

Motor Protection: RP/SS/AS/CL

Signal Output:FG/RD/LD

Speed Contorl Method：PWM/TP/VC/RC/CS

LDDC4020 Design Application Product Types:

The DC4020  is known for its high static pressure characteristics, making it particularly suitable for high-resistance airflow channels and heat-concentrated cooling scenarios, and is mainly used in:

1. Industrial Automation

PLC, servo drives, frequency converters, industrial control cabinets, robot controllers.

Requirements: High air pressure, vibration resistance, 24/7 operation.

2. Network communication

Switches, routers, firewalls, base station equipment, and optical module cooling.

Requirements: High reliability, PWM speed control, low noise.

3. Medical equipment

Ventilators, oxygen concentrators, monitors, ultrasound devices, analyzers.

Requirements: Low noise (≤30 dBA), long lifespan, oil-free / dust-free.

4. New Energy and Power Electronics

Charging stations, home storage inverters, DC/DC power supplies, UPS, energy storage PCS.

Requirements: Wide temperature range, high air pressure, IP protection.

5. Consumer Electronics and Smart Home

3D printers, laser equipment, high-end audio systems, gaming consoles, smart toilets, air purifiers.

Requirements: low noise, compact size, long lifespan.

6. In-car Electronics

Vehicle-mounted controllers, BMS, electric control units for new energy vehicles, LED car lights.

Requirements: Vibration resistance, wide temperature range, high reliability.

7. Other precision equipment

Security surveillance, video decoders, stage lighting, photography lights, testing instruments.