OSG60R070H N-Channel MOSFET 650V 47A for Crypto Miner Power Supply Repair

OSG60R070H N-Channel MOSFET 650V 47A – TO-247 for Mining PSU Repair

The OSG60R070H is an N-channel MOSFET rated at 650V / 47A (141A pulse) in a TO-247 package, delivering 278W power dissipation with 30V Vgs gate drive rating. It provides reliable primary-side switching for half-bridge and full-bridge topologies in mining power supplies. Available under variant markings including OSG60R070HF. New original component.

Why This MOSFET Suits Mining PSUs

Mining PSUs run their primary MOSFETs at sustained high power for months. The OSG60R070H's low Rds(on) keeps conduction losses manageable at the heavy currents involved, while the 650V rating provides adequate margin above the rectified mains bus voltage. The 141A pulse capability handles the transient current spikes during half-bridge switching transitions without degradation.

Replacement Procedure

Disconnect mains and discharge bulk capacitors — primary bus exceeds 400V DC. Locate the failed MOSFET near the main transformer heatsink. Inspect both half-bridge devices. Remove hardware, desolder leads, clean holes. Install the new OSG60R070H with correct orientation, apply thermal compound and torque. Power through a variac under progressive load. Replace both as a pair if either is suspect.

OSG60R070H MOSFET Specifications

Related 650V Class Power MOSFETs for PSU Repair

• JS60R080WUCR 47A 600V TO-247 MOSFET
• IPW60R037P7 650V 76A MOSFET – Innosilicon G1240
• IPW65R029CFD7 MOSFET – Whatsminer P222B / P221B
• NCE65TF130D 650V SuperJunction MOSFET

Repairing mining PSUs? Contact us at contact@lys-sz.com for matched MOSFET pairs and bulk pricing. Worldwide shipping from our Shenzhen warehouse.