Sunon 4010 three-wire 5V fan for HotEnd cooling.
The yellow wire (tachometer) provides feedback on the actual speed. It is not necessary to connect it, but it is useful.
Quote from Ellis' Print Tuning Guide:
"If yours is a two-wire fan, I would still recommend replacing it. For a 4010 fan, I recommend the Sunon MF40101VX-1000U-G99 or the Delta AFB0412VHA-DU48."
Description by Ellis: Hotend Fan RPM Monitoring
Features:
- Manufacturer: SUNON
- Type: MF40100V1-1000U-G99
- Fan efficiency: 8 CFM / 13.52 m3/h
- Fan type: DC
- Fan kind: axial
- Power supply: 5V DC (2.5…6V)
- Fan size: 40 x 40 x 10 mm
- Noise level: 27.3 dBA
- Nominal current: 0.120 A (max 0.138 A)
- Power consumption: 0.83 W
- Speed: 7000 rpm
- Operating temperature: -10 ~ 70°C
- Weight: 15.5g
