FD6025B12H Cooling Fan 60mm 12V 0.25A for Bitmain APW3 APW7 APW12 PSU
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FD6025B12H 60mm 12V Cooling Fan for Bitmain APW3 / APW7 / APW12 PSU Repair
The FD6025B12H is the internal 60mm cooling fan used inside several generations of Bitmain Antminer power supplies — covering the APW3, APW7 and APW12 families. When the small PSU fan starts to whine, slow down or seize, this is the direct replacement spare to restore proper airflow over the rectifiers, switching MOSFETs and secondary-side capacitors before they cook.
Ball-bearing construction and a rugged plastic frame make the FD6025B12H suitable for the 24/7 continuous duty cycle of a mining PSU.
Specifications
| Parameter | Value |
|---|---|
| Part number | FD6025B12H |
| Condition | New |
| Fan size | 60 x 60 x 25 mm |
| Rated voltage | 12V DC |
| Rated current | 0.25A |
| Bearing type | Ball bearing |
| Connector | 2-pin |
| Housing | Tough plastic frame |
| Compatible PSUs | Bitmain APW7, APW12 (also APW3-era units) |
| Duty | Continuous 24/7 operation |
| Application | PSU internal airflow / heat dissipation |
Where the FD6025B12H sits inside an APW7 / APW12 PSU
Open an APW7 or APW12 and you find two 60mm fans pulling air across the heatsink and the secondary-side caps. Those fans are spec'd for 12V 0.25A and use a 2-pin lead. When one of the two fails, the remaining fan cannot move enough air and the PSU runs hot, leading to electrolytic cap degradation, output ripple, hashrate drops, and eventually a smoke event in the worst cases.
Why a PSU fan swap is worth doing on time
Replacing both PSU fans during a preventive service window is significantly cheaper than replacing a full APW7 or APW12 power supply. The FD6025B12H ships in the original 60x25mm form factor and 2-pin connector, so the swap is a straight-out, straight-in operation for most mining technicians.
Common failure symptoms
- APW7 / APW12 PSU running hotter than usual — thermal throttling under load
- Audible fan whine, clicking or seized fan after months of duty
- Output voltage ripple visible on the scope due to overheated caps
- Miner restarts under full load, then runs again once it cools down
- One of the two PSU fans stationary, the other still spinning
Frequently asked questions
Is the FD6025B12H a direct replacement for APW7 and APW12 internal fans?
Yes. The 60×60×25mm size, 12V supply, 0.25A draw and 2-pin connector match the internal PSU fan specification used in those Bitmain power supplies.
Will it also fit older Bitmain APW3 PSUs?
The form factor and 12V supply match. Confirm the connector and pinout against your existing fan before swapping — see the specifications panel for connector detail.
Do I need to replace both PSU fans at the same time?
Best practice: yes. Both fans have run the same duty hours, so the second one will usually fail shortly after the first. Replacing them as a pair avoids a second tear-down.
Are these new authentic units?
Yes, condition is New. Contact us for volume pricing on repair-shop quantities.
Related products
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- APW9 PSU for Antminer S17 / T17
- C20 to P13 Power Cord for S21 / S19j XP
- P13 to C14 Splitter AC Power Cord for Antminer
- K8 Universal Hashboard / PSU Tester
Contact contact@lys-sz.com for volume pricing or compatibility questions.
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