Content last revised on April 20, 2026
Infineon / EUPEC BSM100GB170DLC | A High-Voltage Workhorse for Robust Power Conversion
The Infineon BSM100GB170DLC is an industry-proven dual IGBT module engineered for high-reliability power conversion systems. As a legacy component originally from EUPEC, this module has established a track record for exceptional ruggedness and stable performance in demanding applications where high voltage capability is non-negotiable. It embodies a design philosophy focused on durability and a wide safety margin, making it a trusted choice for engineers designing or maintaining critical power infrastructure.
Key attributes of the BSM100GB170DLC include:
- 1700V Collector-Emitter Voltage (V_CES): Provides a substantial safety margin for systems operating on high DC-link voltages, effectively mitigating risks from voltage spikes and transients.
- 100A Nominal Collector Current: Delivers ample current handling for a wide range of medium-power industrial applications.
- Half-Bridge Configuration: Features two IGBTs in a series configuration with integrated freewheeling diodes, ideal for building inverter legs, choppers, and other classic power topologies.
- Proven NPT Technology: Built on Non-Punch-Through (NPT) IGBT technology, prized for its robustness, wide Safe Operating Area (SOA), and superior short-circuit withstand capabilities.
Key Technical Specifications
The following parameters represent the core operational characteristics that define the performance of the BSM100GB170DLC. These values are essential for system-level simulation, thermal design, and performance validation.
| Parameter | Value |
|---|---|
| Max. Collector-Emitter Voltage (V_CES) | 1700V |
| Nominal DC Collector Current (I_C_nom) | 100A |
| Collector-Emitter Saturation Voltage (V_CE(sat)) at I_C_nom | 3.9V (Typ.) at Tj=125°C |
| Topology / Configuration | Half-Bridge (Dual IGBT) |
| Max. Junction Temperature (T_jmax) | 150°C |
| Package | Standard Industrial Module |
For a comprehensive list of electrical and thermal characteristics, designers should reference the official BSM100GB170DLC datasheet.
Engineering Deep Dive: The Value of Robustness over Raw Efficiency
In modern power electronics, the focus is often on minimizing conduction losses (V_CEsat). While the BSM100GB170DLC features a higher V_CEsat compared to the latest generation IGBTs, this is a deliberate engineering trade-off. Its NPT chip technology delivers exceptional ruggedness. This translates into a higher tolerance for fault conditions like short circuits and overvoltages, which is a critical requirement in applications where downtime is unacceptable. The positive temperature coefficient of its V_CEsat also promotes even current sharing when paralleling modules, simplifying the design of higher-power systems. For more on preventing component failure, explore our guide to IGBT failure analysis.
Primary Application Arenas
The unique combination of high voltage rating and proven reliability makes the BSM100GB170DLC an ideal solution for specific, demanding power conversion tasks.
- Industrial Motor Drives: Perfectly suited for variable frequency drives (VFDs) and servo drives connected to 690V AC industrial grids, where the 1700V rating provides essential protection against DC-link voltage fluctuations.
- Renewable Energy Systems: A solid choice for central solar inverters and wind turbine converters, particularly in legacy systems or designs prioritizing long-term field reliability over achieving the absolute highest efficiency figures.
- Uninterruptible Power Supplies (UPS): Its robust nature ensures continuous, reliable operation in large-scale UPS systems that protect critical data centers, hospitals, and industrial processes.
- Welding and Induction Heating: In applications like high-frequency induction heating, the module's ability to withstand harsh electrical conditions is paramount for consistent performance.
Frequently Asked Questions (FAQ)
Q1: Can the BSM100GB170DLC be used as a replacement for a 1200V module?
A: While electrically compatible in terms of footprint and function, substituting a 1700V module for a 1200V one is an over-specification unless the system requires a higher safety margin. The higher V_CEsat of the 1700V device will result in increased conduction losses compared to a modern 1200V equivalent. This change should only be made after careful analysis of the system's thermal management capabilities.
Q2: What are the critical gate drive considerations for this module?
A: Due to its high voltage rating, a robust and well-designed gate drive circuit is crucial. To ensure reliable and fast turn-off and to prevent parasitic turn-on induced by the Miller effect, a negative gate voltage (e.g., -8V to -15V) is strongly recommended. Additionally, clean power rails and minimized loop inductance in the gate drive path are essential for optimal switching performance.
