FS8205A 4A 1W 2 N-Channel MOSFET for Antminer S19pro Hash Board Repair
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FS8205A Dual N-Channel MOSFET TSSOP-8 for Antminer S19 Pro
Revitalize your Antminer S19 Pro hashboard with the high-performance FS8205A dual N-channel MOSFET transistors. Specifically designed for Antminer S19 Pro hashboard repair, these MOSFETs provide an upgraded performance that ensures stable mining capabilities.
Featuring advanced TSSOP-8 packaging, FS8205A MOSFETs are easy to install — making the replacement process seamless. ROHS marking and 8205A silk screen identify the part for OEM-spec drop-in replacement on the S19 Pro hashboard. Two N-channel MOSFETs integrated in a single TSSOP-8 package.
Typical Use in S19 Pro Hashboard Repair
- S19 Pro hashboard MOSFET failure — drop-in replacement for failed FS8205A.
- Per-domain switching — power-gate switching on hashboard domain power rails.
- Hot-failure recovery — replacing MOSFETs damaged in thermal events.
- Production refurbishment — bulk MOSFET inventory for S19 Pro board rebuild lines.
- Dual-MOSFET application — battery protection, dual-channel switching where two N-ch MOSFETs in one package saves PCB space.
FS8205A Specifications
| Technical Parameter | Value |
|---|---|
| Part Number | FS8205A |
| Silk Marking | ROHS 8205A |
| Configuration | Dual N-channel (2× MOSFET in TSSOP-8) |
| Drain-Source Voltage (VDS) | 20V |
| Continuous Drain Current (ID) | 6A |
| RDS(on) | 25 mΩ @ VGS=4.5V, ID=4A |
| Package | TSSOP-8 |
| Power Dissipation | 1W per package |
| Compatible Hashboard | Antminer S19 Pro |
| Condition | Brand New |
FAQ — FS8205A Dual MOSFET
Q: Two MOSFETs in one package — why?
A: Dual-MOSFET packages save PCB space and reduce parts count. Common applications: synchronous rectification (one MOSFET high-side, one low-side), battery protection circuits (two back-to-back MOSFETs), dual-channel switching. The FS8205A's two N-ch MOSFETs can be wired independently or as a pair.
Q: 25mΩ at 4.5V gate — is that low enough?
A: For 6A continuous (the rated continuous current), 25mΩ RDS(on) gives ~0.9W conduction loss — manageable with proper heatsinking via PCB pad. For higher-current applications, lower-mΩ MOSFETs are preferred.
Q: How do I diagnose a failed FS8205A?
A: Failed MOSFETs typically show drain-to-source short. Test with multimeter resistance mode — both channels should show open in OFF state, low in ON state. Visible damage on the TSSOP-8 package confirms catastrophic failure.
Q: Bulk pricing for S19 Pro repair shops?
A: Yes — email contact@lys-sz.com with your monthly hashboard rework volume for tier pricing on FS8205A by the reel.
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S19 Pro repair shops stocking FS8205A by the reel? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouses.
Buying in bulk for a mining farm or repair shop?
Get dedicated B2B pricing on this part and across our full catalog — quote response within 24 hours, payment by T/T USD bank wire, and DDP delivery available for US & EU customers (and other lanes on request).
