SKM400GB12T4
High-power IGBT module for demanding industrial applications...
Product Overview
Description
High-power IGBT module for demanding industrial applications
Product Series
SEMiTRANS™ 4
Primary Application
High-Power Motor Drives up to 200kW, Wind Power Converters, Active Front Ends, Industrial Inverters
Key Features
- High efficiency and reliability
- Optimized for industrial applications
- Comprehensive technical support
- Available from stock
Specifications
| Part Number | SKM400GB12T4 |
|---|---|
| Voltage | 1200V |
| Current | 400A |
| Package | SEMiTRANS 4 (62mm x 100mm x 17mm) |
| Vce Sat | 1.85V @ 400A, 25°C |
| EOn | 6.5mJ @ 400A, 600V |
| EOff | 5.0mJ @ 400A, 600V |
| Tj Max | 175°C |
| Stock | In Stock - 150+ units available |
| Lead Time | Same day shipping |
| Long Description | The Semikron SKM400GB12T4 is a high-power IGBT module from Semikron's SEMiTRANS 4 family, designed for demanding industrial applications requiring maximum power density and efficiency. This module utilizes Semikron's advanced IGBT4 trench gate field-stop technology, delivering exceptional performance with ultra-low saturation voltage of 1.85V and optimized switching characteristics (Eon + Eoff = 11.5mJ). The module features six IGBTs configured as three half-bridges with anti-parallel free-wheeling diodes, suitable for three-phase inverter applications up to 200kW. Key applications include high-power AC motor drives for industrial compressors, large pumps, and fans; wind power converters for turbine systems; active front-end rectifiers for regenerative drives; and industrial power conversion systems. The SEMiTRANS 4 package provides excellent thermal performance with Rth(j-c) of 0.105 K/W for the IGBT, enabling continuous operation at 400A collector current with proper heat sinking. Advanced features include high short-circuit robustness, low stray inductance design for reduced voltage overshoot, and excellent EMI performance. The module is manufactured under IATF 16949 quality standards with comprehensive testing including dynamic switching tests, partial discharge testing, and thermal cycling validation. |
| Features | IGBT4 trench gate field-stop technology,Ultra-low Vce(sat) of 1.85V at 400A,Optimized switching losses (11.5mJ total),Excellent thermal performance (Rth(j-c) = 0.105 K/W),High power density for compact designs,Low stray inductance package design,Superior EMI performance,High short-circuit capability (10μs),IATF 16949 automotive quality,Long-term availability for industrial customers |
| Alternatives | SKM300GB12T4 (300A version),SKM600GB12T4 (600A version),SKM400GB17T4 (1700V version) |
| Matching Products | SKYPER42R (advanced dual-channel gate driver),Laminated DC busbars,Film DC link capacitors,High-current terminal connectors |
| Technical Specs | [object Object] |
| Ordering Info | [object Object] |
| Seo Title | Semikron SKM400GB12T4 IGBT Module | 1200V 400A | High Power | LiTong |
| Seo Description | SKM400GB12T4 - Semikron SEMiTRANS 4 high-power IGBT, 1200V 400A. For high-power drives, wind converters. In stock. Contact: +86 15013702378 |
| Fae Review | [object Object] |
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Applications
Motor Drives
Variable frequency drives and servo motor controls
Power Supplies
SMPS, UPS, and industrial power systems
Renewable Energy
Solar inverters and wind turbine converters
EV Charging
Electric vehicle charging stations
FAE Expert Insights
"SKM400GB12T4 iswe Power Driverand purpose module. 400A module and 1.85V, in Product . in 150-200kW and use module, performanceverystable. especially isitshot have 0.105 K/W, that is inhighPower apply canmaintain okay hotperformance. Forrequiringand use , recommendadopt SKYPER42R Driver , canensurebetterCurrent ."
400A Powerapply select, and 1.85V, hot 0.105 K/W
— 张伟, LiTong Electronics
Frequently Asked Questions
What applications is the SKM400GB12T4 best suited for?
The SKM400GB12T4 is optimized for very high-power industrial applications: High-Power Motor Drives - Three-phase inverters for AC motors up to 200kW, large industrial compressors, pumps, and fans
Wind Power Converters - Wind turbine converters and pitch control systems
Active Front Ends - Regenerative drives and four-quadrant converters for energy recovery
Industrial Inverters - Large UPS systems, industrial power supplies. Key application requirements that match this module: 380-480VAC input voltage, output power 150-200kW, switching frequency 2-6kHz, continuous output current up to 280A RMS. The 1200V rating provides adequate margin for 600V DC bus applications, while the 400A rating handles peak currents during motor acceleration.
This high-power module is ideal for your demanding industrial drive or renewable energy application. Contact us for volume pricing and technical support.
How does the SKM400GB12T4 compare to the SKM200GB12T4?
The SKM400GB12T4 offers double the current capability with improved efficiency: Current Rating - 400A vs 200A continuous current, enabling 2x power output from the same package size
Vce(sat) - 1.85V vs 1.95V at rated current, meaning lower conduction losses per ampere
Thermal Performance - Rth(j-c) of 0.105 K/W vs 0.21 K/W, providing better heat dissipation
Switching Losses - Higher total switching energy (11.5mJ vs 6.2mJ) but better loss-per-amp ratio
Applications - SKM400GB12T4 for 150-200kW drives, SKM200GB12T4 for 55-90kW drives. Both modules share the same SEMiTRANS 4 package footprint and pinout, allowing easy upgrade path. The SKM400GB12T4 uses larger IGBT chips to achieve higher current density while maintaining reliability.
Choose SKM400GB12T4 for higher power applications or when upgrading existing designs. Contact us for migration support and thermal design assistance.
What cooling solutions are recommended for the SKM400GB12T4?
The SKM400GB12T4 requires effective thermal management for reliable operation: Thermal Resistance - Rth(j-c) = 0.105 K/W for IGBT, requiring careful heatsink selection
Forced Air Cooling - Use 300-400mm heatsinks with 400-600 CFM airflow for 300-400A operation
Liquid Cooling - Recommended for continuous 400A operation or compact designs, cold plate with 8-15 L/min flow rate
Thermal Interface - Use high-performance thermal grease (thermal conductivity >4 W/mK) or phase-change materials
Operating Temperature - Keep junction temperature below 125°C for long-term reliability, 150°C maximum. For a typical 150kW drive application at 300A RMS, a 350mm extruded aluminum heatsink with 500 CFM forced air provides adequate cooling with margin. Contact our FAE team for thermal simulation and heatsink selection assistance.
Review thermal specifications and contact our FAE team for heatsink selection, thermal simulation, and cooling system design assistance.
What is the recommended gate driver for the SKM400GB12T4?
The recommended gate driver for SKM400GB12T4 is the Semikron SKYPER42R: Specifications - 40A peak output current for fast switching of the 400A IGBT, 4000V reinforced isolation, integrated desaturation detection for short-circuit protection
Features - Under-voltage lockout (UVLO), soft shutdown for fault conditions, active Miller clamp to prevent parasitic turn-on
Package - Standard isolation with adequate creepage/clearance for industrial applications
Performance - 150ns propagation delay enables precise switching control. Alternative Options - SKYPER32PRO (23A output) for standard applications. Gate Resistor Selection - Typically 2.2-4.7Ω depending on desired switching speed and EMI requirements. Lower values = faster switching but higher overshoot. The SKYPER42R is available from stock at LiTong Electronics.
Add the SKYPER42R gate driver to your order, or contact us for complete inverter design support including gate drive circuits.
Can I parallel SKM400GB12T4 modules for even higher current?
Yes, SKM400GB12T4 modules can be paralleled for higher current capability: Current Sharing - Use modules with positive temperature coefficient so current naturally balances as devices heat up. Gate Drive Matching - Use identical SKYPER42R drivers with matched propagation delays (within 20ns). Gate Resistors - Use individual gate resistors (2.2-4.7Ω) for each module to prevent oscillation. Symmetrical Layout - Keep DC bus and output connections as symmetrical as possible, minimize inductance differences. Current Derating - Parallel at 70-80% of theoretical total current to account for imbalance (e.g., two modules = 640A usable, not 800A). Temperature Monitoring - Monitor each module individually with NTC sensors. With proper design, parallel SKM400GB12T4 modules can achieve 600-700A continuous output current, suitable for 250-350kW drives. Our FAE team can review your parallel design for optimal performance.
Contact our FAE team for detailed parallel connection guidelines, gate drive recommendations, and design review services.