IPW60R037P7 76A 650V Fast-Switching MOSFET for Innosilicon G1240 PSU Repair

IPW60R037P7 Fast-Switching MOSFET | Infineon CoolMOS™ P7 for Innosilicon G1240 PSU Repair

The IPW60R037P7 is a super-junction power MOSFET — the primary-side switching MOSFET used on the Innosilicon G1240 power supply. Replacing the failed primary MOSFET on a G1240 PSU is the standard recovery path when the unit fails to start, draws AC input without producing DC output, or enters hiccup mode.

Per IPW60R037P7 datasheet (Rev 2.3, 2018-06-07), the part is rated VDS 600V, RDS(on) max 37 mΩ, ID 76A, in the TO-247-3 through-hole package. Switching speed: typical 22ns turn-on delay, 90ns turn-off delay. Operating temperature range -55°C to +150°C, total power dissipation 255W at TA = 25°C. The part offers >2kV HBM ESD robustness and low ringing trend — characteristics that matter on PSU primary stages where transient voltage events occur on every switching cycle.

When to Replace the IPW60R037P7 on a G1240 PSU

• Innosilicon G1240 PSU fails to start — no DC output, no startup tick from the transformer.
• Hiccup mode — PSU pulses on and off repeatedly without latching to full operation.
• Burnt or visibly damaged TO-247 on the primary-side heatsink — often paired with a shorted main bridge rectifier.
• Multimeter diode-test shows short or open across drain-source — either failure mode.
• Repeated overtemperature shutdowns with normal ambient — failing MOSFET with elevated RDS(on).

Specs and Technical Features

• Infineon CoolMOS™ P7 super-junction architecture — well-balanced switching / conduction loss tradeoff.
• 600V VDS, 37 mΩ RDS(on), 76A ID — full datasheet specs from Infineon.
• TO-247-3 through-hole package — heatsink-mounted, rugged for primary-side PSU duty.
• 22ns turn-on delay / 90ns turn-off delay (typical) — fast switching for high-frequency operation.
• >2kV HBM ESD robustness — survives handling and PSU transients.
• Low ringing trend — reduces switching EMI and stress on adjacent components.
• PFC and PWM stage suitability — versatile across SMPS topologies.
• Used by Infineon in their 3kW dual-LLC reference design — proven in production.

IPW60R037P7 MOSFET Specifications

FAQ — IPW60R037P7 Super-Junction MOSFET

Q: VDS — 600V or 650V?
A: Per Infineon's official IPW60R037P7 datasheet, the VDS rating is 600V. The 650V figure in some listings (including the original LYS spec) appears to be a rounded conservative spec. For repair work, treat the part as a 600V CoolMOS™ P7 family device.

Q: Can I substitute another super-junction MOSFET like the IPW60R060P7?
A: The IPW60R060P7 is the same family but with 60 mΩ RDS(on) instead of 37 mΩ — meaning higher conduction loss and lower current rating. If the G1240 PSU was originally designed for the IPW60R037P7, the higher-RDS(on) substitute will run hotter and may trip thermal protection.

Q: How do I confirm the IPW60R037P7 is the failed part?
A: Power off and discharge the PSU bulk caps. Use a multimeter in diode-test mode across drain-source — healthy super-junction MOSFET reads OL one direction and ~0.5V body-diode drop the other. Shorted reads ~0V both ways; open reads OL both ways.

Q: Rework profile for TO-247?
A: Through-hole — desolder the 3 leads with a vacuum pump, lift the part, clean the holes, install fresh MOSFET with correct orientation (gate / drain / source per silk mark), apply fresh thermal compound to the tab, torque to the heatsink.

Q: Bulk pricing for repair shops?
A: Yes — email contact@lys-sz.com for tray-quantity pricing on Infineon CoolMOS™ stock.

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Innosilicon G1240 / T2T PSU repair benches stocking IPW60R037P7 MOSFETs in volume? Email contact@lys-sz.com for bulk pricing on Infineon CoolMOS™ stock. Worldwide shipping from our Shenzhen warehouse.