25V 220µF Aluminum Electrolytic Capacitor for Bitmain APW3++ PSU
This 25V 220µF aluminum electrolytic capacitor in an 8x12mm can is the replacement part used to restore degraded output-side electrolytics on the Bitmain APW3++ mining power supply. Built to withstand extreme temperature variations from -55°C to +105°C, it is sized for the continuous thermal duty seen inside an ASIC PSU.
Failed 25V/220µF caps on the APW3++ output stage typically show as ripple-induced shutdowns, hash-board instability or audible whine from the PSU. Replacing the affected caps brings the PSU back into spec without having to swap the entire unit.
Specifications
Parameter
Value
Part type
Aluminum electrolytic capacitor
Condition
New
Capacitance
220µF
Voltage rating
25V DC
Package size
8mm diameter x 12mm height
Operating temperature
-55°C to +105°C
Mounting
Radial / through-hole or surface-mount (board-dependent)
Application
Bitmain APW3++ PSU output-side filtering
Compatibility
Bitmain APW3++ and similar ASIC PSUs
Where the 25V 220µF cap sits in the APW3++
Inside an APW3++ power supply, 25V-class electrolytics sit on the output side, between the synchronous rectifier MOSFETs and the load connector. Their job is to smooth the high-current DC output before it leaves the PSU on its way to the miner. When they age, ESR rises, ripple climbs and the downstream hashboards become unstable — even though the average output voltage looks correct on a multimeter.
Compatibility
Drop-in replacement for the 25V 220µF 8x12mm slots on Bitmain APW3++ PSU output sections. The same form-factor is reused on several Bitmain and third-party miner PSUs — verify the can footprint and silkscreen value before substitution. Always replace caps as a batch in the same neighbourhood for consistent ESR matching.
Common failure symptoms
APW3++ output ripple causes hash-board instability or chain drops
Bulging, vented or leaking electrolytic on the output stage
Audible whine or high-pitched noise from the PSU under load
Miner intermittently reboots even though the average output voltage looks correct
Synchronous rectifier MOSFETs running hotter than usual
Frequently asked questions
Is this the same form factor as the original APW3++ output cap?
Yes. The 25V 220µF 8x12mm can footprint matches the slot used on Bitmain APW3++ PSU output sections.
Can I use it as an input filter cap instead?
The 25V rating is for low-voltage output filtering. Input/PFC bulk caps use much higher voltage parts and are not interchangeable.
Do I need to match ESR?
Yes — for output filtering on a switching PSU, match the original ESR class to avoid increased ripple.
Do you sell other capacitor values?
Yes — we also stock 47µF 63V aluminum electrolytics for Antminer L7 and Iceriver KS5L hashboards.
Contact contact@lys-sz.com for volume pricing or compatibility questions. Worldwide shipping from our Shenzhen warehouses. DDP available for US and EU customers.
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