25mm DC Axial Fan: Compact Cooling for Space-Limited Devices
The SZR-FB 2510 is a miniature DC axial fan engineered for applications where board space and component clearance are limited. Its 25 × 25 × 10mm frame and approximately 8.6g mass make it suitable for compact assemblies that need targeted airflow. The fan uses UL94V-0-rated plastic for the frame and impeller, and the listed specifications include 5V and 12V DC versions with several speed grades. Choose the electrical rating, airflow, static pressure, noise level, and bearing configuration to suit the system's thermal and acoustic requirements.
Design & Engineering Notes
• Compact installation: The nominal 25 × 25 × 10mm size is intended for small enclosures and tightly packed electronic assemblies. Confirm mounting-hole spacing and available cable clearance against the mechanical drawing before integration.
• Selectable performance: Listed speed grades range from 5,200 to 13,000 RPM, allowing designers to balance airflow and noise according to the specific variant.
• Voltage options: The specification sheet lists 5V and 12V rated versions. Select the exact model for the intended supply voltage and check its operating-voltage range before powering the fan.
• Materials and wiring: The frame and impeller are specified as UL94V-0 plastic. The sheet identifies red as the positive lead and black as the negative lead; confirm the exact wiring and connector arrangement for the purchased configuration.
• Bearings: Sleeve-bearing and ball-bearing options are indicated in the specification. Choose the bearing type according to cost, orientation, operating duty, and the application's service-life requirements.
Key Specs (Model 2510)
Nominal dimensions: 25 × 25 × 10mm | Mass: approximately 8.6g | Rated voltage options: 5V DC / 12V DC | Frame and impeller: UL94V-0 plastic | Storage temperature: −30°C to +70°C (non-condensing) | Bearing options: sleeve or ball bearing | Compliance marks shown on the supplied sheet: CE / RoHS.
The source sheet lists the following performance grades. Verify the exact suffix and electrical values against the current quotation or approved datasheet before design release.
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Core Strengths
• Small footprint: A 25 × 25mm face and 10mm thickness support cooling in miniature electronics and narrow enclosures.
• Multiple performance grades: Several listed speeds and airflow/static-pressure levels help accommodate different thermal loads.
• Low-noise options: The supplied table lists noise levels from 18.5 to 28dBA across the variants; actual system noise depends on installation and surrounding airflow paths.
• Flexible supply choices: 5V and 12V versions can fit different DC power architectures when the matching variant is selected.
• Material specification: UL94V-0 plastic is listed for both frame and impeller.
Applications
The Model 2510 is best suited to compact equipment that needs localized airflow rather than high-volume ventilation. Potential applications include:
• Embedded systems and compact control boards where nearby components need active cooling.
• Small networking, communication, and interface modules with limited internal clearance.
• Compact instrumentation, sensors, and measurement devices that generate localized heat.
• Miniature power electronics and DC-powered assemblies, provided the selected fan's airflow and pressure meet the thermal design requirements.
• Small appliances, DIY electronics, and prototype enclosures where a 25mm mounting footprint is available.
Application note: These are suggested use cases based on the fan's size and listed performance characteristics, not a claim of qualification for any specific end product. Validate temperature rise, airflow impedance, vibration, acoustic behavior, and operating environment in the final assembly.
Quick Support Q&A
Q1. What does "2510" mean?
It refers to the nominal fan size: 25 × 25mm face dimensions and 10mm thickness. Check the mechanical drawing for tolerances and mounting details.
Q2. Which supply voltages are available?
The supplied specification lists 5V DC and 12V DC variants. Use the model code and approved datasheet to confirm the rated voltage and operating range for the exact unit.
Q3. How do I choose between the speed grades?
Higher-speed variants generally provide greater listed airflow and static pressure, but also have higher listed noise and power consumption. Choose based on measured thermal needs, enclosure restriction, and acceptable noise.
Q4. Is the fan quiet?
The source table lists noise values of 18.5–28dBA for the listed variants. These are specification values; installation, resonance, nearby obstacles, and measurement conditions can affect perceived noise.
Q5. Are sleeve and ball bearings available?
The product sheet indicates both sleeve-bearing and ball-bearing options. Confirm the bearing type for the exact order code; the supplied performance table does not map every bearing option separately.
Q6. What are the frame and impeller made of?
The supplied sheet specifies UL94V-0 plastic for both the frame and impeller.
Q7. How should I connect the fan?
The sheet identifies red as the positive lead and black as the negative lead. Verify the wiring diagram and connector pinout for the exact variant before connecting power.
Q8. Can it be used in any enclosed device?
Not automatically. Check the fan curve against the system's airflow resistance, confirm component temperature limits, and test the complete assembly under expected operating conditions.
Q9. Is the fan waterproof or dustproof?
The supplied sheet shows selectable protection-code notation but does not clearly identify a confirmed IP rating for every Model 2510 variant. Do not assume a protection rating; request confirmation for the exact configuration.
Q10. What information should I provide when requesting a quote?
Specify rated voltage, desired speed/performance grade, bearing type, lead-wire or connector requirements, quantity, operating environment, and any required sensing or protection features.
Manufacturing Support
SZR provides OEM and project-based cooling solutions for compact thermal management applications. Engineering support, rapid sampling and customized specifications are available for long-term cooperation.
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