SCT3022AL
650V 100A trench-gate SiC MOSFET featuring ultra-low 22mΩ Rds(on) in TO-247-4L Kelvin source package for high-efficie...
Product Overview
Description
The SCT3022AL is a 650V 100A Silicon Carbide MOSFET featuring Rohm's proprietary trench-gate technology with ultra-low 22mΩ on-resistance. This device is designed for high-power applications including EV traction inverters, solar inverters, and industrial motor drives where efficiency and thermal performance are critical.
The trench-gate structure delivers industry-leading low Rds(on) while maintaining excellent switching characteristics. The TO-247-4L package with Kelvin source connection enables fast switching and reduced switching losses. The device is fully AEC-Q101 qualified for automotive applications.
With its ultra-low on-resistance and easy gate drive compatibility, the SCT3022AL enables system designers to achieve higher efficiency and power density compared to traditional silicon IGBTs and MOSFETs.
Product Series
SCT Series
Primary Application
EV traction inverters
Key Features
- 650V blocking voltage
- 100A continuous drain current
- Ultra-low Rds(on) = 22mΩ typical
- Trench-gate technology
- TO-247-4L with Kelvin source
- 175°C maximum junction temperature
- AEC-Q101 qualified
Specifications
Applications
EV traction inverters
Automotive and EV electronics
Solar inverters
Renewable energy systems
Industrial motor drives
Motor drive and control systems
High-power SMPS
Power conversion and supply
FAE Expert Insights
"The SCT3022AL is one of Rohm's flagship SiC MOSFETs with exceptional performance. The 22mΩ Rds(on) is among the lowest in the industry for 650V devices. For EV traction inverters, this device can deliver 98%+ efficiency. The Kelvin source connection is essential for maximizing switching performance. Highly recommended for high-power automotive and industrial applications."
Industry-leading 22mΩ Rds(on) with Kelvin source for maximum performance
— Michael Chen, BeiLuo
Frequently Asked Questions
What makes SCT3022AL's Rds(on) so low?
SCT3022AL low Rds(on) factors: (1) Trench-gate technology - Proprietary design optimizes channel density. (2) Advanced process - State-of-the-art SiC manufacturing. (3) Cell design - Optimized unit cell structure. (4) Material quality - High-quality SiC substrates. (5) 22mΩ at 25°C - Industry-leading for 650V/100A. (6) Temperature stability - Low increase at high Tj. (7) Competitive advantage - Best-in-class performance. Rohm's trench-gate technology enables this exceptional performance.
Choose SCT3022AL for applications requiring lowest conduction losses.
How does the Kelvin source connection improve performance?
Kelvin source benefits: (1) Separate paths - Power and gate return separated. (2) No common inductance - Eliminates source inductance from gate loop. (3) Faster switching - Reduced turn-on/turn-off times. (4) Lower losses - Reduced switching energy. (5) Cleaner waveforms - Less ringing and overshoot. (6) Higher frequency - Can switch at 100kHz+. (7) Better control - Precise gate voltage control. The TO-247-4L package with Kelvin source is essential for high-speed SiC switching.
Always use Kelvin source connection for high-speed switching applications.
What gate drive voltage is optimal for SCT3022AL?
SCT3022AL gate drive requirements: (1) Recommended Vgs - +18V for turn-on, 0V for turn-off. (2) Compatible range - +15V to +18V turn-on. (3) Threshold voltage - 2.8V typical. (4) Gate charge - 75nC total at 18V. (5) Gate resistor - 2-10Ω depending on speed. (6) Drive power - 3.5W at 50kHz. (7) Miller plateau - At 7V during switching. Rohm devices are designed for easy drive with standard 15-18V drivers.
Use +18V gate drive with 5Ω gate resistor for optimal performance.
Can SCT3022AL be used for EV traction inverters?
Yes, SCT3022AL is ideal for EV traction: (1) Voltage - 650V for 400V battery systems. (2) Current - 100A for 80-120kW inverters. (3) Efficiency - 98%+ achievable. (4) Automotive - AEC-Q101 qualified. (5) Reliability - Mass production proven. (6) Thermal - Excellent thermal performance. (7) Support - Full EV reference designs. Perfect for EV traction inverter applications.
Ideal for 400V EV traction inverters up to 120kW.
What thermal management is required for SCT3022AL?
SCT3022AL thermal design: (1) Rth(j-c) - 0.35°C/W typical. (2) At 50A: Pcond = 55W. (3) Switching losses - 25W at 50kHz. (4) Total - ~80W at full load. (5) Required heatsink - Rth(s-a) < 1.0°C/W. (6) Cooling - Forced air or liquid. (7) Interface - High-performance thermal grease. Proper thermal design is essential for reliable operation at high power.
Use forced air or liquid cooling; design for Tj < 150°C for automotive reliability.
How does SCT3022AL compare to silicon IGBTs?
SCT3022AL vs IGBT comparison: (1) Rds(on) - 22mΩ vs 40mΩ equivalent. (2) Switching - 10x faster than IGBT. (3) Losses - 70% lower switching losses. (4) Temperature - 175°C vs 150°C. (5) Body diode - Usable vs none in IGBT. (6) Efficiency - 2-3% system improvement. (7) Size - Smaller magnetics. SCT3022AL significantly outperforms silicon IGBTs in all aspects.
Replace IGBTs with SCT3022AL for higher efficiency and power density.