SRC60R090B Super Junction Power MOSFET for Innosilicon G1240 PSU

SRC60R090B Super-Junction Power MOSFET | 600V High-Efficiency Replacement for Innosilicon G1240 PSU Repair

The SRC60R090B is a high-voltage N-channel power MOSFET built with advanced super-junction technology for the Innosilicon G1240 power supply. 600V breakdown voltage, ultra-low 90mΩ RDS(on) at VGS=10V, ultra-low 90.3nC typical gate charge — delivers superior power density and outstanding efficiency in the G1240's primary switching stage.

Features a fast-recovery intrinsic body diode and fast switching capability — designed to handle high-voltage applications with robust EAS (Single Pulse Avalanche Energy) performance. Available in TO-220F, TO-263-2, and TO-247 packages; match the package on your G1240 PSU board exactly.

When to Replace the SRC60R090B

• G1240 PSU no output — primary-side switching MOSFET open or shorted.
• Blown input fuse — shorted MOSFET took out the fuse on power-up.
• Repeating over-current trip — degraded MOSFET causing controller to retry-and-fault.
• Visible damage on the TO-247 / TO-220F body — overheat damage from cooling-fan failure or sustained over-temperature.
• Body diode degradation — slow recovery causing extra switching loss and primary-stage heat.

SRC60R090B Specifications

FAQ — SRC60R090B Super-Junction MOSFET

Q: Replace in pairs on the G1240 primary stage?
A: Yes — when the PSU uses a bridge topology, replace in matched pairs to keep switching characteristics balanced. A single new MOSFET paired with an aged partner mismatches gate charge and on-resistance, stressing both devices unevenly.

Q: TO-247 vs TO-220F vs TO-263-2 — which one is on the G1240?
A: Verify the package on your existing PSU board before ordering. Different G1240 production batches may use different packages; match exactly to avoid PCB rework. We stock all three variants.

Q: Replace the gate driver IC when this MOSFET dies?
A: Strongly recommended. Voltage spikes from a shorting MOSFET often take out the driver in the same event. Skipping driver replacement is a common cause of repeat failure within hours.

Q: Bulk pricing for Innosilicon G1240 PSU repair benches?
A: Yes — email contact@lys-sz.com for tape-and-reel quantities and matched gate-driver kits.

Related products

• IPW60R037P7 76A 650V MOSFET (Innosilicon G1240)
• G1240 / G1240A Power Supply Unit (Innosilicon T2T 30T)
• TPW65R040M 650V MOSFET (Avalon PSU3400-03)
• GP47S60X MOSFET TO-247 (Miner PSU Primary Stage)

Innosilicon G1240 PSU repair benches stocking SRC60R090B in tape-and-reel volume? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.