80x25 Cooling Fan (Computer Fan), DC axial fan

An 80 mm square cooling fan, 25.4 mm thick, with 4.5 mm mounting holes 71.5 mm apart. It comes as simplified STEP files.

How these parts are made, and what the levels mean: read the method

• Also searched as: 80x25 fan
• Model id: fans-dc-axial-80x25
• Standard: DC axial fan · size 80x25

Files

Part key	Simplified
fans-dc-axial-80x25	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
a	Frame side		80		80	nominal	L1
t	Frame thickness		25.4		25.4	nominal	L1
e	Mounting hole spacing		71.5		71.5	nominal	L1
dh	Mounting hole diameter		4.5		4.5	nominal	L1

Drawing

As a PDF: CC-DCFAN-SZ-80x25.pdf.

From the maker's data sheet

As written on the Mechatronics data sheet for this frame (mechatronics-dc-axial), one of the sheets this size's dimensions come from: the series, its models and features.

• Series: MR8025
• Models: MR8025L, MR8025M, MR8025H, MR8025E
• Operating Voltage: 12 or 24 VDC
• Bearing option: ball bearing or sleeve
• Construction: UL94V-0 plastic impeller and frame
• Air Flow: air exhaust over struts
• Features: soft start, polarity protection, auto-restart
• Options: tachometer output or locked rotor alarm signal; PWM speed control

The 80x25 cooling fan beside the 80x15 and the 80x38

The 80x25 is number 13 of the 18 DC axial fan cooling fans published here, listed from 25x10 to 120x38.

• Frame side (a): 80 mm on the 80x25 cooling fan, the same on the 80x15 and the 80x38.
• Frame thickness (t): 25.4 mm on the 80x25 cooling fan, against 15.3 mm on the 80x15 and 38 mm on the 80x38.
• Mounting hole spacing (e): 71.5 mm on the 80x25 cooling fan, the same on the 80x15 and the 80x38.
• Mounting hole diameter (dh): 4.5 mm on the 80x25 cooling fan, against 4.3 mm on the 80x15 and 4.3 mm on the 80x38.

Other sizes

• One size smaller: 80x15 Cooling Fan (Computer Fan), DC axial fan, 80 mm square, 15.3 mm thick.
• One size larger: 80x38 Cooling Fan (Computer Fan), DC axial fan, 80 mm square, 38 mm thick.

Documents

• CC-DCFAN-DS-80x25.pdf: 80x25 datasheet: values with levels, sources
• CC-DCFAN-SZ-80x25.pdf: 80x25 drawing: this size's values on the views
• parts.json: the part record of this size (the platform contract)

Sources

delta-dc-axial, mechatronics-dc-axial, sunon-dc-fan-255e. Full citations: the method page and this size's datasheet.

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