As you know RISUN is well-known for its micro fan, now with superior performance and versatile customization options, Mega Tech fans offer efficient cooling for a wide range of electronic devices that can fully replace RISUN microfan. Here’s is replacement of 1804 RISUN blower fan.

18*4mm RISUN blower fan

perfect replacement of RISUN and NIDEC

Size & Drawing：

Specification:

• Speed:13000RPM

• Air Flow:0.2CFM

• Air Pressure:5mmH2O

Datasheet:

Application:

Mini Fans provide a premium electronic cooling solution for video processing chipset, high-speed memory modules, high-end smartphone, PDA, CCTV, mini projectors, MID, Smartbook, and so on; and Mini Fan is also applicable to defrosting and ventilation of goggles or sunglasses, and fuel delivery of small fuel cell.

Noise Test:

Here’s another article for 15mm Micro Cooling Fans in Electronic Devices

Other micro cooling fans 15 x 15 x 4 mm DC cooling Fan 18 x 18 x 4 mm DC Cooling Fan

Other New Products and solutions， please kindly check：

NEW PRODUCT RELEASE–highest air flow DC Fan 120 x120 x38

For other brand replacement fan，please kindly refer to

Why Mega Fan is the best alternative to EBM Papst fan

China’s Best EBM Papst Cooling Fan Alternatives

EBM PAPST 7114N replacement

Mega

Guangzhou Mega Technology Co., Ltd. is a leading manufacturer and exporter specializing in high-performance thermal management solutions. With over 20 years of industry experience, the company serves global clients across sectors such as EV charging stations, inverter systems, industrial automation, and smart appliances. Mega Tech offers a comprehensive range of cooling products, including DC axial fans, waterproof blowers, and customized cooling modules tailored to demanding applications. Committed to innovation, quality, and responsive support, Mega Tech empowers engineers and system integrators to solve complex thermal challenges with efficiency and reliability.

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