Infineon BSM100GAL120DLCK | Robust 1200V Dual IGBT for High-Reliability Power Conversion
The Infineon BSM100GAL120DLCK is an industry-proven 1200V, 100A dual IGBT module engineered for performance and durability in demanding power conversion systems. Housed in the ubiquitous 34mm standard package, this module integrates Infineon's core technologies to deliver a balanced profile of low conduction losses, efficient switching, and exceptional thermal management. It represents a workhorse solution for engineers designing or maintaining robust industrial equipment where long-term reliability is not negotiable.
Technical Depth: A Foundation of Reliability
The performance of the BSM100GAL120DLCK is not accidental; it is the result of deliberate engineering choices that directly address common power-electronic challenges. Two key aspects stand out:
- Trench and Field-Stop (TFS) IGBT Technology: This module leverages Infineon's mature TFS technology, which creates an optimal balance between static and dynamic losses. The trench gate structure significantly lowers the on-state voltage drop (VCE(sat)), reducing conduction losses—a critical factor in high-current applications. Simultaneously, the field-stop layer minimizes the turn-off switching energy (Eoff), enabling higher efficiency at moderate switching frequencies.
- Integrated NTC Thermistor: Embedded directly into the module, the NTC thermistor provides a real-time, accurate measurement of the module's baseplate temperature. This is a crucial feature for implementing proactive thermal management, allowing the control system to initiate thermal throttling or a safe shutdown before a potentially catastrophic over-temperature event occurs. This built-in sensing capability is fundamental to designing systems with a high mean time between failures (MTBF).
Key Performance Parameters at a Glance
For engineers requiring quick-reference data, the following table summarizes the critical specifications of the BSM100GAL120DLCK. For a comprehensive overview, you can Download the Datasheet.
| Parameter | Value |
|---|---|
| Collector-Emitter Voltage (Vces) | 1200 V |
| Continuous Collector Current (Ic @ 80°C) | 100 A |
| Collector-Emitter Saturation Voltage (Vce(sat), Typ. @ 100A, 25°C) | 1.7 V |
| Configuration | Dual / Half-Bridge |
| Package | 34mm Standard Industrial Housing |
| Short-Circuit Withstand Time (tsc) | ≥ 10 µs |
Application Scenarios & Value Proposition
The BSM100GAL120DLCK is not just a component; it's a solution tailored for specific industrial challenges. Its robust design makes it an ideal choice for a range of high-power applications:
- Industrial Motor Drives: In Variable Frequency Drives (VFDs) and servo drives, the module's low conduction losses directly translate to lower heat dissipation and enhanced system efficiency. Its excellent Short-Circuit Safe Operating Area (SCSOA) provides the ruggedness needed to withstand demanding conditions like motor stalls or phase shorts.
- Uninterruptible Power Supplies (UPS): For critical infrastructure, reliability is paramount. The proven design of this Infineon module, combined with its integrated thermal monitoring, ensures dependable performance, providing clean and stable power when it's needed most.
- Welding and Induction Heating: These applications subject power components to high current pulses and demanding thermal cycles. The BSM100GAL120DLCK's robust thermal construction and ability to handle high peak currents make it a mainstay in professional welding power sources and industrial induction heating systems. Explore our range of IGBT modules for more specialized solutions.
Engineer-to-Engineer: Common Questions Answered
What are the primary benefits of the 34mm standard package?
The primary benefit is design-in simplicity and supply chain stability. This package has been an industry standard for years, meaning there is a vast ecosystem of compatible heatsinks, busbars, and gate driver boards available. For engineers, this de-risks the mechanical design process and simplifies retrofitting or upgrading older equipment without a complete mechanical overhaul.
Can the BSM100GAL120DLCK be paralleled for higher current output?
Yes, but it requires careful design. The module's positive temperature coefficient of VCE(sat) inherently helps with thermal balancing between paralleled devices. However, achieving reliable current sharing is critical and hinges on a symmetrical layout for both power (busbars) and signal (gate drive traces) paths. We strongly advise implementing robust gate drive design practices with matched delays and dedicated gate resistors for each module to prevent dynamic current imbalance.
What should I be most concerned about when designing with this module?
Beyond standard electrical ratings, focus on two areas: thermal interface and gate drive integrity. Ensure a high-quality thermal interface material (TIM) is used with correct mounting pressure to minimize Rth from case-to-heatsink. For the gate drive, prevent excessive ringing and ensure a clean, stiff voltage source to avoid spurious turn-on, especially given the module's speed. Proper implementation will prevent the most common causes of IGBT failure. If your application requires a more customized solution, please do not hesitate to contact our technical team.
