DC4020G B12/B24 40×40×20mm High-Pressure DC Fan
A ball-bearing 40mm high-pressure fan built for 12V/24V systems that need strong airflow penetration through restricted internal paths.
DC4020G differs from DC4020F by using a ball-bearing high-speed profile with much higher pressure output. With up to 16500RPM, 19.42CFM airflow, and 27.49mmH₂O pressure, it is positioned for compact systems with stronger airflow resistance.
Rated Voltage: 12VDC / 24VDC
Size: 40×40×20mm
Max Airflow: 19.42CFM / 0.550m³/min
Max Static Pressure: 27.49mmH₂O / 269.6Pa
Rated Speed: Up to 16500RPM
Key Specifications of DC4020-G DC Fan
Compare DC4020-G models by voltage, bearing, speed, airflow, pressure, current, noise, and weight to choose the right DC cooling fan for your design.
| Model | Bearing Type | Rate Voltage（VDC） | Current （A） | Speed （RPM） | Air Flow （CFM） | Static Pressure （mmH₂O） | Noise Level （dBA） | Weight （g） |
|---|---|---|---|---|---|---|---|---|
| YDS4020B12G | B | 12 | 0.50 | 16500 | 19.42 | 27.49 | 49.80 | 26 |
| YDH4020B12G | B | 12 | 0.32 | 14000 | 16.48 | 19.79 | 46.20 | 26 |
| YDM4020B12G | B | 12 | 0.24 | 12000 | 14.13 | 14.54 | 42.90 | 26 |
| YDL4020B12G | B | 12 | 0.18 | 10000 | 11.77 | 10.10 | 38.90 | 26 |
| YDM4020B24G | B | 24 | 0.16 | 13000 | 15.30 | 17.06 | 44.60 | 26 |
| YDL4020B24G | B | 24 | 0.10 | 10000 | 11.77 | 10.10 | 38.90 | 26 |
DC4020G High-Pressure 40mm Fan Advantages
DC4020G is built for pressure-demanding compact systems where airflow must pass through resistance instead of open space.
High Static Pressure in a 20mm Frame
DC4020G reaches 27.49mmH₂O static pressure, making it suitable for compact layouts where airflow must overcome significant internal resistance.
Ball Bearing for High-Speed Operation
The B bearing design supports high-speed operation and is better suited for pressure-focused cooling paths than lower-speed sleeve or low-load options.
12V / 24V System Orientation
With 12V and 24V versions, DC4020G is positioned for more demanding electronics, telecom, and industrial systems rather than only low-voltage consumer products.
Pressure-Driven Airflow Instead of Quiet Cooling
Noise levels are higher because this model prioritizes pressure and speed, making it useful when thermal performance is more important than acoustic comfort.
YCCFAN DC4020-G Product Overview
Understand the key design details of DC4020-G, including structure, material safety, performance range, and function options.
DC4020G is a 40×40×20mm high-pressure DC fan for compact systems where airflow resistance is too high for general 40mm fans. It is built around ball-bearing operation, high speed, and pressure-focused airflow.
The fan uses PBT UL94V-0 flame-retardant materials and supports optional FG, RD, PWM, auto restart, and polarity protection, allowing integration into monitored or controlled cooling systems.
DC4020-G Airflow & Static Pressure Performance Curve
Use the DC4020-G P-Q curve to evaluate airflow and static pressure behavior across different speed levels and cooling resistance conditions.
DC4020G Applications for High-Pressure Compact Cooling
Best for compact systems with narrow vents, dense components, grilles, and power-dense layouts that require pressure-driven airflow.
Get Cooling Support
Dense Electronic Assemblies
DC4020G can move air through narrow gaps between boards, heat sinks, and closely arranged components.
Telecom and Industrial Terminals
The 12V/24V options and high pressure make it suitable for compact terminals where vents and internal paths are restricted.
High-Resistance Air Outlets
DC4020G is useful when air must pass through grilles, protective covers, or dense exhaust openings.
Compact Power Modules
It can support forced airflow in power-dense modules where heat is concentrated and normal airflow is insufficient.
PWM-Controlled Pressure Cooling
Optional PWM and feedback functions allow system designers to regulate pressure-driven cooling based on temperature or load.
DC 40×40×20mm High-Pressure Fan Video Showcase
Watch DC4020G in operation to see its high-speed ball-bearing design and pressure-focused airflow through compact structures.
Watch DC4020G in operation to see its high-speed ball-bearing design and pressure-focused airflow through compact structures.
FAQs About DC4020-G DC Fan
A: DC4020-G is used for high-pressure cooling in compact telecom, industrial, power, and high-resistance electronics, where the fan size, airflow level, pressure behavior, and voltage options match compact electronic cooling requirements.
A: DC4020G differs from DC4020F by prioritizing ball-bearing high-speed pressure output, reaching much higher static pressure for restricted airflow paths.
A: The available voltage options are 12VDC / 24VDC, allowing the fan to match different low-voltage or system-level power designs.
A: Yes. DC4020-G can support optional FG, RD, PWM, auto restart, and polarity protection functions depending on project requirements.
A: The fan uses glass fiber reinforced plastic with PBT UL94V-0 flame-retardant impeller and housing materials.
A: Yes. YCCFAN can support customization for DC4020-G, including voltage, speed, wire length, connector, bearing, control function, and application environment.
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