IXFH40N60P3
High-voltage N-channel MOSFET with 600V rating and ultra-low 85mΩ on-resistance for power supplies and motor drives.
Product Overview
Description
The IXFH40N60P3 is a high-performance 600V N-channel power MOSFET featuring advanced planar technology. With ultra-low 85mΩ maximum on-resistance and 40A continuous current capability, it delivers excellent efficiency for power conversion applications.
This MOSFET features robust avalanche capability with 500mJ single-pulse avalanche energy rating, eliminating the need for external protection in many inductive load applications. The TO-247 package provides excellent thermal performance with low junction-to-case thermal resistance.
Ideal for high-power SMPS, motor drives, inverters, and power factor correction circuits where high efficiency and reliability are critical requirements.
Product Series
IXFH
Primary Application
High-power SMPS and DC-DC converters
Key Features
- Ultra-low 85mΩ on-resistance minimizes conduction losses
- Robust 500mJ avalanche energy rating
- Fast switching characteristics reduce switching losses
- Low gate charge for efficient gate drive
- TO-247 package with excellent thermal performance
- Avalanche rated for unclamped inductive switching
Specifications
| Voltage Rating | 600V |
|---|---|
| Continuous Current | 40A @ 25°C |
| Rds(on) max | 85mΩ @ 10Vgs |
| Gate Charge | 110nC |
| Input Capacitance | 5200pF |
| Rise Time | 35ns |
| Fall Time | 25ns |
| Avalanche Energy | 500mJ |
| Package | TO-247 |
Applications
High-power SMPS and DC-DC converters
Power conversion and supply
Motor drives and servo controls
Motor drive and control systems
Solar inverters and UPS systems
Renewable energy systems
Power factor correction circuits
Electronic system design
Induction heating equipment
Electronic system design
FAE Expert Insights
"The IXFH40N60P3 is my go-to recommendation for 600V applications requiring 30-40A capability. In my experience designing industrial motor drives, this MOSFET delivers excellent thermal performance and reliability. The 85mΩ Rds(on) is competitive with newer superjunction devices, while the planar technology offers superior avalanche ruggedness. I particularly appreciate the consistent performance across temperature - the Rds(on) stays well-controlled even at high junction temperatures. For applications with inductive loads, the 500mJ avalanche rating often eliminates the need for external protection circuits, simplifying design and reducing BOM cost. I recommend using 15V gate drive for fastest switching and lowest losses."
Excellent 600V MOSFET with robust avalanche capability for industrial motor drives and power supplies
— Michael Chen, BeiLuo
Frequently Asked Questions
What is the maximum operating frequency for this MOSFET?
The IXFH40N60P3 can operate at switching frequencies up to 500kHz in hard-switching applications, and up to 1MHz in resonant or soft-switching topologies. At 100kHz switching frequency with 300V bus voltage and 20A current, switching losses are approximately 15-20W. For high-frequency operation above 200kHz, consider using resonant topologies or zero-voltage switching to minimize switching losses. The gate charge of 110nC requires adequate gate drive current - recommend using gate drivers with 2A+ source/sink capability for fast switching.
Suitable for applications up to 500kHz; use soft-switching for frequencies above 200kHz.
What heatsink is required for 30A continuous operation?
For 30A continuous operation with the IXFH40N60P3: (1) Conduction loss at 30A = 30² × 0.085 = 76.5W (using max Rds(on)); (2) Allowing for switching losses of ~10W at moderate frequencies, total dissipation ~85-90W; (3) Maximum junction temperature 150°C, ambient 40°C, allowable rise 110°C; (4) Required thermal resistance Rth(sa) = 110°C / 90W = 1.22°C/W or better. Recommended heatsinks: Profile heatsinks with forced air cooling (2-3 m/s), or extruded heatsinks with natural convection for lower currents. Always use thermal interface material with 0.1-0.3°C·cm²/W thermal resistance. Monitor case temperature to verify thermal design.
Use heatsink with Rth(sa) < 1.2°C/W with forced air for 30A continuous operation.
Can this MOSFET be used in bridge configurations?
Yes, the IXFH40N60P3 is well-suited for bridge configurations including half-bridge, full-bridge, and three-phase bridges. Key considerations: (1) Body diode - the integral body diode has typical 250ns reverse recovery time; add external fast recovery diodes in parallel for high-frequency applications; (2) Dead time - implement 200-500ns dead time to prevent shoot-through; (3) Gate drive - use isolated gate drivers for high-side switches with proper bootstrap or isolated power supplies; (4) Layout - minimize loop inductance between bridge legs to reduce voltage overshoots. For motor drive applications up to 5kW, this MOSFET provides excellent performance and reliability.
Excellent for bridge topologies; add external freewheeling diodes for high-frequency applications.
What is the recommended gate drive voltage?
The recommended gate drive voltage for IXFH40N60P3 is 10-15V for optimal performance: (1) 10V drive - provides good conduction with Rds(on) near datasheet values; (2) 12V drive - recommended for most applications, provides margin against drive voltage variations; (3) 15V drive - optimal for lowest Rds(on) and fastest switching, but increases gate drive losses; (4) Below 8V - not recommended as Rds(on) increases significantly. The gate threshold voltage is 3-5V, so 10V+ provides adequate margin. For high-reliability applications, consider using 12-15V drive with undervoltage lockout protection on the gate driver.
Use 12-15V gate drive for optimal performance; never operate below 8V gate voltage.
How does this MOSFET compare to superjunction devices?
Compared to superjunction MOSFETs, the IXFH40N60P3 planar technology offers different trade-offs: (1) Rds(on) - superjunction devices have lower Rds(on) per die area (e.g., 60mΩ vs 85mΩ for similar price); (2) Switching - superjunction devices typically have higher dV/dt and may require snubbers; (3) Avalanche - planar devices like IXFH40N60P3 have superior avalanche ruggedness; (4) EMI - planar devices often produce less EMI due to softer switching characteristics; (5) Cost - planar devices are typically more cost-effective. For applications requiring avalanche capability or with inductive loads, the IXFH40N60P3 is often the better choice despite slightly higher Rds(on).
Choose IXFH40N60P3 for avalanche ruggedness; consider superjunction for lowest Rds(on) in non-inductive applications.