This 47µF 63V aluminum electrolytic capacitor in an 8x10.5mm can is the replacement part used to restore failed solid or aluminum electrolytics on the Antminer L7 and Iceriver KS5L hashboards. It is built from high-quality aluminum alloy for long service life under the continuous thermal cycling typical of mining duty.
Bulging, vented, leaking or short-circuited 47µF capacitors on the hash domain output stages are one of the most common board-level failures on L7 and KS5L units. Replacing them brings the affected hashboard back into a healthy voltage profile and can recover the chain that was previously down.
Where the 47µF 63V capacitor sits on the hashboard
The 47µF 63V can is typically used on the higher-voltage filter sections of an L7 / KS5L hashboard, between the buck regulators and the ASIC domain. When it fails open it triggers ripple noise, hash-rate drops and chain restarts. When it fails short it can blow the upstream MOSFET or fuse. Always inspect the part visually for swelling or leakage before assuming a healthy reading on the ESR meter.
Compatibility
Replacement part for the 47µF 63V 8x10.5mm slots on Antminer L7 and Iceriver KS5L hashboards. The same form-factor is found on similar SHA-256 and scrypt mining boards — confirm the can footprint and silkscreen value before ordering. For full repair, plan to replace neighbouring caps that show signs of co-degradation.
Common failure symptoms
Hashboard chain drops out under load with ripple on the domain rail
Capacitor visibly bulged, leaking or vented on top
Shorted cap pulling the rail to ground at start-up
Buck regulator running hot or shutting down because of out-of-spec ripple
Repetitive chip-level errors localised to the area around the failed cap
Frequently asked questions
Is this the same form factor as the original L7 cap?
Yes. The 47µF 63V 8x10.5mm can footprint matches the slot used on Antminer L7 and Iceriver KS5L hashboards.
Can I use it on a Whatsminer board?
The capacitance and voltage match many filter positions, but Whatsminer hashboards often specify different can sizes. Check the silkscreen and footprint before substitution.
Do I need to match ESR exactly?
For mining-domain filtering, match the original ESR class. We supply commercial-grade caps suited to the L7 and KS5L domain rails.
Do you sell other capacitor values?
Yes — we also stock 25V/220µF aluminum electrolytics for APW3++ PSU boards.
Contact contact@lys-sz.com for volume pricing or compatibility questions.
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🇺🇸🇪🇺 USA & European Union (DDP): Orders are delivered DDP. All customs duties, import taxes, and fees are included — no additional charges on delivery.
🌍 Rest of world: Orders ship from China. Depending on your country, local customs authorities may apply import duties or taxes.
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