Name: DC 12V Frameless Cooling Fan with 5-Blade Rotor - UNIVERSAL CIRCUIT SYSTEM
SKU: UCS-0357
Price: 300.00 BDT
Availability: InStock

This Frameless 12V DC Cooling Fan Module is a specialized, space-saving thermal management solution engineered to deliver high-velocity, targeted airflow directly to heat-generating internal components. Unlike conventional square-framed box fans that require large rectangular footprints, this frameless 5-blade impeller fan is designed specifically for tight, curved, or customized enclosures where physical space is highly restricted.

Built around a reliable, low-vibration brushless DC motor, this module serves as an ideal direct replacement part for repairing or upgrading home IPS inverters, UPS backup systems, high-power desktop power supplies, and custom electronic ventilation units. Its lightweight aerodynamic blades spin smoothly to dissipate stagnant pocket heat, ensuring your electronic components operate within safe thermal thresholds to prevent premature component failure.

Technical Specifications

Fan Configuration: Frameless Brushless DC Impeller
Operating Input Voltage: 12V DC Nominal [1, 2]
Rotor Design: 5-Blade Aerodynamic Pitch (Semi-transparent composite material)
Bearing Architecture: Long-life, low-friction sleeve / sleeve-hybrid bearing
Interface Connector: Standard 2-Pin female terminal socket [2]
Wiring Setup: 2-Wire flexible insulated cable (Red = Power Positive / Black = System Ground) [2]
Chassis Compatibility: Universal mounting post layout for direct hub alignment

Key Product Features

Space-Optimized Frameless Profile: The absence of an outer structural plastic cage significantly reduces the overall weight and mounting footprint, allowing the rotor assembly to fit inside low-profile or uniquely shaped product housings where standard case fans cannot clear the internal components.
High-Volumetric 5-Blade Airflow: The custom sweep angle and wide surface area of the 5 aerodynamic blades are optimized to push substantial volumes of air with excellent static pressure, quickly clearing hot air away from heavy-duty power transistors and transformer coils.
Whisper-Quiet Brushless Motor: Driven by an integrated internal commutation board, the brushless motor eliminates the physical friction and electrical noise associated with brushed alternatives, ensuring long-term operational reliability with ultra-low acoustic output.
Ready-to-Plug Wiring Harness: Ships pre-terminated with a standard 2-pin mini terminal clip, eliminating the need for stripping, crimping, or manual soldering during routine equipment repairs and servicing.
Universal Repair Drop-In: Purpose-built to drop straight onto the pre-existing center spindle or mounting brackets found in popular consumer-grade electronics, making it an essential replacement accessory for technicians repairing household power backup systems.

Common Applications

Power Conversion Gear: Direct internal replacement cooling fan for standard home IPS (Inverter Power Supply), online/offline UPS systems, and solar charge storage blocks.
Power Supplies: Active cooling upgrades for variable bench laboratory power supplies, LED driver brick enclosures, and industrial switching power supplies.
DIY & Prototyping: Custom extraction setups for enclosed 3D printer chambers, small AV cabinet ventilation vents, and autonomous robotic drive motors.

Installation and Wiring Quick Guide

To avoid common user installation errors and keep return rates low, include this brief technical note on your product page:

Check Your Polarity: Before snapping the 2-pin connector into your circuit board, verify that your board’s pin layout matches the pre-wired configuration. The Red wire must match the positive voltage rail (+12V), and the Black wire must align with the ground line (GND).
Direction of Airflow: Due to the convex curve of the 5-blade impeller, this fan pulls air in through the center front hub and forces it outward across the blade edges. Position the fan face pointing outward toward your chassis vents for exhaust layouts.