Content last revised on January 9, 2026
Infineon BSM35GB120DLC IGBT Module | Robust Six-Pack for Industrial Drives
The Infineon BSM35GB120DLC is a highly reliable 1200V, 35A six-pack IGBT module engineered for performance and durability in demanding industrial power conversion applications. Housed in the industry-standard EconoPACK™ 2 package, this module integrates a full three-phase inverter bridge, simplifying system design and assembly. It represents a proven, cost-effective solution for developers focused on achieving robust control and high operational efficiency in motor drives and power supplies.
Technical Deep Dive: Core Technology Advantages
- Advanced IGBT4 Trench Field-Stop Technology: At the heart of the BSM35GB120DLC lies Infineon's fourth-generation Trench Field-Stop (TFS) technology. This sophisticated chip design achieves an exceptional balance between low collector-emitter saturation voltage (Vce(sat)) and minimized switching losses. For the system designer, this directly translates to lower overall power dissipation, reducing the requirements and cost of the cooling system. The improved efficiency is critical for applications where energy consumption is a key performance indicator. You can learn more about this technology in this IGBT4 Trench Field-Stop whitepaper.
- Optimized Freewheeling Diodes (FWD): Each IGBT is paired with a carefully matched freewheeling diode featuring soft recovery characteristics. A "hard" recovery in a diode can generate significant voltage overshoots and electromagnetic interference (EMI). The soft-recovery diode in this module mitigates these effects, simplifying the EMC filtering design, reducing component stress, and enhancing the overall system reliability.
- Integrated NTC Thermistor: For proactive thermal management, an NTC thermistor is integrated directly into the module. This provides real-time temperature feedback to the control system, enabling precise monitoring and allowing for safe shutdown procedures in case of an over-temperature event, thereby preventing catastrophic failure and extending the system's operational lifespan.
Application Scenarios & Value Proposition
The versatile design of the Infineon BSM35GB120DLC makes it a cornerstone component in a variety of industrial systems:
- Industrial Motor Drives: In standard AC induction or permanent magnet motor drives, the module's low conduction loss ensures high efficiency across a range of speeds and loads. The robust IGBT six-pack configuration handles the demanding inductive load switching with exceptional reliability.
- Servo Control Systems: For applications requiring high precision, such as robotics and CNC machinery, the BSM35GB120DLC's controlled switching characteristics enable smooth torque delivery and accurate positioning, minimizing jitter and improving final product quality.
- Uninterruptible Power Supplies (UPS): System uptime is non-negotiable in a UPS. The module's proven reliability, integrated thermal monitoring, and excellent thermal performance via its insulated copper baseplate ensure stable and continuous operation during critical power backup phases.
- Welding Equipment: The module’s ability to handle high-current pulses and its thermal stability make it an ideal choice for the inverter stage in modern welding machines, contributing to a stable arc and consistent weld quality. For a deeper understanding of thermal challenges, review this guide on IGBT thermal design.
Key Technical Parameters Overview
| Parameter | Value |
|---|---|
| Collector-Emitter Voltage (Vces) | 1200 V |
| Continuous Collector Current (Ic @ Tc=80°C) | 35 A |
| Collector-Emitter Saturation Voltage (Vce(sat), typ. @ 35A, 150°C) | 2.05 V |
| Package Type | EconoPACK™ 2 |
| Integrated Features | NTC Thermistor |
| BSM35GB120DLC Datasheet | |
Selection Advice: Proven Silicon vs. Next-Gen Alternatives
While newer Wide Bandgap (WBG) technologies like SiC (Silicon Carbide) offer advantages in ultra-high frequency or high-temperature applications, the BSM35GB120DLC remains the superior choice for mainstream industrial applications operating at switching frequencies up to ~20kHz. Its key advantages are a mature and robust design, lower cost, and less demanding gate drive requirements compared to SiC. For systems where proven reliability and cost-effectiveness are the primary drivers, this silicon IGBT module provides an optimal and pragmatic engineering solution. For a broader view of available technologies, feel free to explore more IGBT modules in our portfolio.
For detailed pricing, availability, or to discuss how the BSM35GB120DLC can fit into your specific design, please contact us for a quote. Our technical experts are ready to assist you.
