What causes the fan to be too loud?

Loudness can be caused by loose screws (vibration), dust buildup (air resistance), or bearing type. Sleeve bearings are quietest initially but wear out; double-ball is louder but more durable.

Is OEM/ODM customization available?

Yes, we offer full customization from samples, designs, or complete OEM/ODM services to meet specific customer needs.

What certifications does the product have?

The product is certified with RoHS, CE, FCC, and ISO9001 standards, ensuring high quality and safety for global markets.

35X35X5mm High Efficiency 5V DC Ultra-Thin DC Blower Fan for Industrial IoT Sensor

Name: 35X35X5mm High Efficiency 5V DC Ultra-Thin DC Blower Fan for Industrial IoT Sensor
Brand: Fengxia Motor (Shanghai) Co., Ltd.
SKU: 2152651442

Shanghai, ChinaFengxia Motor (Shanghai) Co., Ltd.

US$3.60

500-4,999 Pieces

US$3.30

5,000+ Pieces

Sample price:US$4.00/piece.Request sample

Product profile

Customization

Available

Material

Plastic-Iron-Copper-Magnet

Blade Material

PBT 94ulv

Model NO.

3505

Type

DC Blower Fan

Electric Current Type

Mounting

Free Standing

Certification

RoHS, ISO, CE

Insulation Resistance

10mωor Over with at DC250V Megger

Ielectric Withstand Voltage

AC500V1s

Ambient Temperature

-10℃~+70℃(Operating) -40℃~+70℃(Storage)

Expected Life

+40° ,30000 Hours

Transport Package

Paper Box

Specification

Customized

Trademark

FUNSHARE

Origin

China

Production Capacity

100000 Pieces/Year

Key features

Ultra-Thin Design: Compact 35x35x5mm size ideal for space-constrained IoT and VR devices.

High Efficiency: 5V DC operation ensures stable performance with extended service life.

Multi-Bearing Options: Choose sleeve, hydraulic, or double-ball bearings for specific noise and lifespan needs.

Wide Voltage Tolerance: Operates effectively from 5V to 13V, compatible with various power sources.

Certified Quality: Meets RoHS, CE, FCC, and ISO9001 standards for global compliance.

Full Customization: OEM/ODM services available for designs, samples, and full customization.

Versatile Application: Suitable for UAVs, automotive, medical, and industrial IoT sensor cooling.

Quiet Operation: Optimized for ultra-quiet performance with adjustable RPM and noise adapters.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Fengxia Motor (Shanghai) Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 5 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤3.13h

AI-Powered supplier vetting

SummaryThe supplier demonstrates strong customization, R&D, OEM/ODM, quality-control, and complaint-handling capabilities. It reports new products within the past year, provides customization from samples and designs through full customization, and serves known brands through OEM. Production includes two lines, inventory capability, defined inspection procedures, and four QA/QC inspectors. However, important operational limitations exist: no available SDK, no overseas agents, branches, warehouse, or showroom, no offline trade-show participation, and only one experienced export-trade employee. Manufacturing controls also show gaps, including no ongoing quantity reconciliation for each batch and no standard operating procedure for outsourced manufacturing. Financial evidence is represented only by years rather than substantive indicators, so credibility cannot be determined. The supplier holds an ISO9001:2015 certificate, but the available information does not establish broader certification coverage.

Supplier typeThe supplier operates as a manufacturer with two production lines, provides OEM and ODM services, offers inventory capability, and accepts FOB and EXW quotations. It also provides full customization, but lacks overseas agents, branches, warehouses, and showrooms.

CertificationsThe supplier reports an ISO9001:2015 certificate. No additional specific certifications are identified in the provided information.

After-Sales capabilityThe supplier has documented and followed procedures for customer complaints and corrective/preventive actions, supporting an established service-response process. However, it has no overseas agents, branches, warehouse, or showroom, which limits demonstrated overseas service infrastructure.

R&D capabilityThe supplier reports new products in the past year, provides ODM services, and assigns R&D personnel to product development, design drawings, production support, and specifications. Nevertheless, it has no available SDK and no design input, output, review, validation, or confirmation documents available for audit.

Production capacityProduction evidence includes two production lines, inventory capability, one-month average lead times in both peak and off-season periods, four QA/QC inspectors, written finished-product inspection instructions, and multiple listed production machines. Controls are weakened by the absence of ongoing batch quantity reconciliation and a standard operating procedure for outsourced manufacturing.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, and full customization, with the same capability reported under both R&D and design services. This directly demonstrates broad customization coverage.

Product Q&A

Q:What is the expected lifespan of the fan?

Lifespan depends on the bearing type: sleeve bearings last ~2-3 years, hydraulic bearings ~4-5 years, and double-ball bearings can last 5-10 years under 24/7 operation.

Q:What is the difference between 3-pin and 4-pin connectors?

3-pin uses DC voltage control for fixed or stepped speeds, while 4-pin uses PWM for automatic, precise, and quieter speed control. A 4-pin fan on a 3-pin header runs at full speed.

Q:Why does the fan spin at 5V if the label says 12V?

The motor has a wide voltage tolerance, operating effectively from 5V to 13V. It may not start below ~7V but will spin at 5V.

Q:How can I reduce fan noise?

Use rubber grommets instead of screws, install a low-noise adapter or inline resistor to lower voltage, or adjust the BIOS fan curve to keep RPM low until temperatures rise.

Q:Which direction should the fan face?

Check the arrows on the frame: intake (cool air in) is usually front/side, and exhaust (hot air out) is usually rear/top. Tower coolers push air toward the rear exhaust.