Parts / Fans

Centrifugal blower, 40 x 40 x 10 mm

BLOWER-40x10

Use it for a 40 mm blower ducted onto a small heat sink (about 40 mm) or a single hot chip (frame and curve of the Delta BFB0412HHA-A).

Open in LessCADView it in 3D and download the STEP file · CentrifugalBlower(size=40, thickness=10)
Size40 × 40 × 10 mm
Free-air flow3 CFMDelta BFB0412HHA-A datasheet (Specification for Approval, sample rev 00, issue date JUL.07.2008), https://www.delta-fan.com/Download/Spec/BFB0412HHA-A.pdf; digitised from the plotted curve (datasheet page page 5 (PDF p6)); read by eye on a rendered image, not vector-extracted; reading error flow +-0.002 m3/min, pressure +-0.3 mmH2O
Shutoff pressure141 PaDelta BFB0412HHA-A datasheet (Specification for Approval, sample rev 00, issue date JUL.07.2008), https://www.delta-fan.com/Download/Spec/BFB0412HHA-A.pdf; digitised from the plotted curve (datasheet page page 5 (PDF p6)); read by eye on a rendered image, not vector-extracted; reading error flow +-0.002 m3/min, pressure +-0.3 mmH2O
mouth18 mmOutlet mouth width: estimated (0.45 x frame width); the drawing does not dimension the outlet

Specs are typical values for this class of part, from the sources shown, not one manufacturer's datasheet. Check your chosen part's datasheet before you build.

In an assembly

Ducted onto a finned heat sink

The blower's mouth discharging straight through an aluminium heat sink with 12 fins, the usual way a blower cools a chip in a thin product.

Open the assembly in LessCADBuilt at this size, every part editable