12VDC, 2" (50mm) Square X 3/8" (10.5mm) T&T Box Fan

12VDC, 2
Stock Number: 12773 FN
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 Number of Reviews: 3
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Availibilty: In Stock   Units: 10569

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Detailed Description

P/N: MW-510H12C
Voltage: 12VDC
Current: .14A
CFM: 9
Small box fan with thermoplastic blades & frame. Ball bearings, 10”wire leads. 27 dB noise. UL/CSA/VDE/CE listed.
SQ: 2" (50mm) T: 3/8" (10.5mm) WT: .06

California Proposition 65 Warning WARNING: This product can expose you to chemicals including Nickel which is known to the State of California to cause cancer and which is known to the State of California to cause birth defects and/or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

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Perfect for STEM education projects
Good for STEM education / Arduino projects. Runs at reduced speed from 5V and still slower with a PWM signal through a transistor. Yellow wire is hall effect sensor, use a pullup resistor and view the square wave on a scope appears to be 2 pulses per revolution. Use a reflective IR sensor TCRT5000 and sense a little piece of foil taped to one blade to measure RPM. Have students carefully place a little piece of paper in the path of the blades like a playing card in bicycle spokes and guess the clicks per second frequency and by extension the RPM. Finally build closed loop control system to command a specific fixed RPM under different loads.
- Al Evangelista, MI
Great price, Im getting a bunch of them!
...the yellow wire is a tachometer output. It is used in smart systems to detect a fan failure to prevent overheating damage by either notifying a user or shutting off high-powered loads.
Works Good - No Wiring Diagram
This is a 3 wire fan -- by trial and error, found out that red + and black - are the 12VDC power in. Does not accept reverse polarity. Have no idea what the yellow wire is -- probably a sense line of some sort, but seems to work fine without connection
- Tom, SC