SY6280AAAC QWAHE Ultra-Low RDS(ON) Switch for Antminer C76 A113D Control Board

SY6280AAAC Load Switch for Antminer C76 A113D Control Board

The SY6280AAAC QWAHE is an exceptional ultra-low RDS(on) load switch designed specifically for repairing the Antminer C76 A113D control board. Silk screen marking QW*** in SOT-23-5 packaging — compact form factor with superior performance. Features a programmable current limit that safeguards the power supply from overcurrent and short-circuit conditions, ensuring the longevity and reliability of your control board.

Beyond the programmable current limit, the SY6280AAAC integrates over-temperature protection and reverse blocking — automatically discharging the output capacitor during shutdown for clean rail behavior. Input voltage range 2.4V to 5.5V with 2A load current capability matches the C76 A113D control board's power-domain switching needs.

Typical Use in Antminer Control Board Repair

• C76 A113D control board load switch failure — drop-in replacement for failed SY6280AAAC.
• Power-domain gating — restoring on/off control of a specific board sub-section.
• Overcurrent protection recovery — restoring fault protection on a downstream rail.
• Production refurbishment — bulk SY6280AAAC stock for C76 / A113D control board lines.

SY6280AAAC Specifications

FAQ — SY6280AAAC Load Switch

Q: What's the "QWAHE" suffix for?
A: The suffix encodes specific variant + production date code. The "QW" silk marking is the part-identifier on the package. For repair, match the silk marking on your existing failed device — typically "QW***" with the *** varying by production lot.

Q: How do I diagnose a failed load switch?
A: Typical signs: downstream rail (gated by the switch) absent despite enable signal active, switch package visibly damaged, or switch always-on regardless of enable state. Test by measuring Vout while toggling EN pin — should follow Vin when enabled, drop to 0V when disabled.

Q: Can I substitute another load switch?
A: Functionally yes — any SOT-23-5 load switch with similar Vin range (2.4-5.5V), Iout (2A+), and pin compatibility works. However, the SY6280AAAC has specific timing characteristics matched to the C76 A113D firmware. For OEM-spec repair, stick with the original part.

Q: Bulk pricing for repair shops?
A: Yes — email contact@lys-sz.com with your volume for tier pricing on SY6280AAAC stock.

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• Antminer A113D Control Board Stencil
• SY8003ADFC Step-Down Converter – Antminer S19 Pro

Antminer control board repair shops stocking SY6280AAAC by the reel? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouses.