SRC65R032FB 650V Super-Junction Power MOSFET
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SRC65R032FB 650V Super-Junction Power MOSFET | TO-247 High-Voltage Switching Transistor
The SRC65R032FB is a 650V super-junction N-channel power MOSFET in the TO-247 through-hole package — engineered for high-voltage primary-side switching in ASIC miner PSUs, server power supplies, solar inverters, and high-frequency DC/DC converters. Super-junction architecture delivers the low RDS(on) needed at 650V breakdown without the package penalty of older silicon technologies.
Headline specs: VDSS 650V, RDS(on) typical 32mΩ at VGS = 10V, gate charge Qg 124.1nC typical, operating temperature -55°C to +150°C. Built-in low Qrr and strong EAS (avalanche) performance for switching robustness under inductive loads.
When to Replace the SRC65R032FB
- PSU fails to start — no DC output, primary switching dead.
- Hiccup mode — PSU pulses on/off without latching.
- Visible damage — burnt or cracked TO-247 on primary heatsink.
- Multimeter shows shorted drain-source.
SRC65R032FB Specifications
| Feature | Specification |
|---|---|
| Type | N-Channel Super-Junction Power MOSFET |
| Breakdown Voltage (VDSS) | 650V |
| RDS(on) | 32mΩ @ VGS = 10V |
| Gate Charge (Qg) typical | 124.1nC |
| EAS Performance | Robust |
| Qrr (Reverse Recovery) | Low |
| Operating Temperature | -55°C to +150°C |
| Package | TO-247 (through-hole) |
FAQ — SRC65R032FB MOSFET
Q: How do I confirm the SRC65R032FB is failed?
A: Power off and discharge PSU caps. Multimeter in diode-test mode across drain-source: healthy = OL one way, ~0.5V body-diode drop the other. Shorted = ~0V both ways; open = OL both ways.
Q: Can I substitute another 650V/32mΩ super-junction MOSFET?
A: Verify RDS(on), Qg, and TO-247 pin assignment match exactly. Mismatched gate charge changes switching loss and may exceed the PSU controller's gate-drive capability.
Q: Rework profile for TO-247?
A: Through-hole — desolder 3 leads with vacuum pump, lift the part, install fresh device with correct gate / drain / source orientation per silk mark, apply fresh thermal compound to the tab, torque to heatsink.
Q: Bulk pricing?
A: Yes — email contact@lys-sz.com for tray-quantity pricing.
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PSU repair benches stocking SRC65R032FB MOSFETs in volume? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.
Buying in bulk for a mining farm or repair shop?
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