Selecting the right Semikron power semiconductor for your application involves evaluating multiple parameters including voltage, current, switching frequency, thermal requirements, and environmental conditions. This guide provides a systematic approach to component selection that ensures optimal performance, reliability, and cost-effectiveness for your specific application requirements. Our factory-trained FAE team has compiled this guide based on decades of experience assisting customers with power electronics designs.
Structured methodology for component selection
Guidance tailored to your specific requirements
Selection for optimal performance and reliability
Methodical approach to selecting optimal Semikron components
Identify key parameters including:
Determine the appropriate technology:
Confirm component ratings match your requirements:
Choose the most suitable package and configuration:
Selecting the optimal IGBT technology for your application
| Technology | Application Focus | Key Characteristics | Recommended Use |
|---|---|---|---|
| IGBT3 | General Purpose | Moderate VCEsat, Good SOA | Motor drives, UPS, power supplies |
| IGBT4 | Low Loss | Low VCEsat, Optimized tail | Solar inverters, high-efficiency systems |
| TRENCHSTOP | Low Frequency | Low switching losses | Welding, uninterruptible power |
| Field-Stop | High Frequency | Fast switching, low Qrr | High-frequency power supplies |
Standard package for general applications. Cost-effective with proven reliability.
High-current package with advanced thermal performance.
Top-side cooling for enhanced thermal performance.
Selecting intelligent power modules for integrated solutions
| Series | Power Range | Integration Level | Key Features | Best Application |
|---|---|---|---|---|
| MiniSKiiP | 5kW - 100kW | High | Press-fit, copper-less | Compact drives, EV accessories |
| SKiiP 3 | 10kW - 200kW | High | Press-fit, enhanced protection | Wind, industrial drives |
| SKiiP 4 | 10kW - 300kW | High | Latest technology, improved efficiency | High-performance applications |
| SKAI Drive | 50kW - 300kW | System | Complete subsystem | EV traction, high-power systems |
Selecting thyristors and diodes for high-power applications
Previous generation technology, widely used with proven reliability.
Enhanced technology with improved surge current capability.
Latest generation with superior thermal characteristics.
Recommended components for common applications
Resources to assist in component selection
Our FAE team can help you select the right Semikron components
Contact Selection Experts
FAE Technical Commentary
Expert insights on component selection
For high-efficiency applications, consider the trade-off between VCEsat and switching losses. IGBT4 technology typically offers the best balance for applications operating at 10-20kHz switching frequencies, while older technologies might be preferred for very low switching frequencies.
When selecting for thermal performance, don't just consider the component rating but also the thermal resistance of the complete system. The package design, mounting method, and heatsink selection all contribute to thermal performance.
For reliability-critical applications, implement proper derating strategies. Using components at 80% of their rated current capability can significantly extend operational lifetime. This is especially important in applications with high thermal cycling.