
ADDA AD0812HB-A73GL 12V DC 80x80x25mm Fan, 3-Pin
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Prices updated: 13 Oct 2026
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About this product
The ADDA AD0812HB-A73GL is an 80×80×25 mm axial cooling fan rated at 12 V DC and 0.25 A. Its 3-pin connector includes a speed-measurement (tachometer) signal, so a microcontroller can monitor rotation speed. It is used to cool electronics enclosures, power supplies and project cases.
Specifications
- Rated voltage
- 12 V DC
- Current
- 0.25 A
- Maximum speed
- 3000 RPM
- Dimensions
- 80 × 80 × 25 mm
- Maximum airflow
- 36.28 CFM
- Noise level
- 32.9 dB(A)
- Connection
- 3-pin (speed measurement)
- Material
- Plastic
Frequently asked questions
What do the three wires do?
Two wires supply 12 V and ground, and the third carries the speed-measurement (tachometer) signal. Confirm the pin order in the datasheet or product documentation before wiring it.
Can I control this fan's speed with PWM?
Not through a PWM input, since a 3-wire fan has no dedicated control pin. Speed is usually changed by varying the supply voltage, while the third wire only reports the speed. Use a 4-pin fan if you need PWM control.





