ZM035P03N Iceriver KS3L Hashboard - P-Channel Power MOSFET

ZM035P03N P-Channel Power MOSFET | -30V / -90A Low-RDS(on) Replacement for Iceriver KS3L Hashboard Repair

The ZM035P03N is a P-channel trench power MOSFET with -30V VDS, 3.5mΩ RDS(on), and -90A continuous drain current — designed for the local power-switching positions on the Iceriver KS3L hashboard. Trench architecture delivers high GOX reliability and low thermal resistance, ideal for the continuous high-load operation of 24/7 ASIC mining. Drop-in replacement when the original fails.

P-channel trench MOSFETs sit at the high-side of switching configurations — load switches, BLDC motor drivers, and DC-DC converter primary stages. On the KS3L hashboard, ZM035P03N positions provide local power gating that the main bulk rail can't handle alone. When one fails, the affected chip group typically loses its supply and the hashboard scan reports the corresponding chip positions as missing.

When to Replace the ZM035P03N

• Chip group offline on KS3L hashboard — local power gate failed, affected chips drop out.
• Drain-to-source short measured on the suspect device — dead-short failure mode.
• Excessive heat on the MOSFET under normal load — degraded RDS(on), thermal stress accelerating.
• Visible damage on the package — burnt, cracked, or pad-level burn marks after a fault event.

ZM035P03N Specifications

FAQ — ZM035P03N P-Channel MOSFET

Q: P-channel vs N-channel — does it matter for substitution?
A: Yes — completely different polarity. The ZM035P03N is P-channel; substituting an N-channel device of the same VDS / ID would short the gate circuit and likely destroy the surrounding driver. Always match channel type exactly.

Q: How do I test the MOSFET in-circuit?
A: Power off the board. With DMM diode-test mode, measure source-to-drain (forward and reverse) — healthy P-channel MOSFET shows the body diode in one direction, OL in the other. Shorted reads 0Ω both directions. Open reads OL both directions.

Q: Rework profile?
A: SMD power MOSFET with exposed drain pad — needs full preheat and adequate hot-air dwell to release the thermal joint. Preheat to 100°C, hot air at 320°C with flux paste, allow extra dwell vs a standard signal MOSFET.

Q: Bulk pricing?
A: Yes — email contact@lys-sz.com for tape-and-reel quantities on ZM035P03N stock for KS3L hashboard repair benches.

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• AUIRF4905S P-Channel MOSFET (Mining PSU)

Iceriver KS3L hashboard repair benches stocking ZM035P03N by the reel? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.