Infineon’s 150A / 600V IGBT modules remain one of the most widely used components in industrial motor drives, UPS systems, inverters, and high-efficiency power conversion. Among these, the BSM150GD60DLC and BSM150GB60DLC are two popular models that often appear in engineers’ BOM lists — yet they differ significantly in structure, package, and application suitability.
In this article, we provide a clear, complete, and engineer-friendly comparison to help you determine which module is right for your application. This comparison is based on verified datasheet information from Infineon (EUPEC legacy line).
Introduction to Both Modules
Below is the correct classification of both modules:
BSM150GD60DLC — EconoPACK? Single Switch IGBT Module
The BSM150GD60DLC belongs to Infineon’s EconoPACK? family, known for compact design, low weight, and cost-effective solutions for medium-power systems.
Key characteristics:
IGBT + Diode (single switch topology)
Plastic housing, no metal baseplate
Lower weight and cost
Designed for forced-air cooled systems
Suitable for SMPS, motor drives, UPS, general inverters
→ GD = Dual, meaning two IGBTs in one package.
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BSM150GB60DLC — Baseplate IGBT Half-Bridge Module
The BSM150GB60DLC belongs to Infineon’s high-power baseplate IGBT series, designed for applications requiring stronger thermal performance and a more robust mechanical design.
Key characteristics:
Half-bridge (IGBT + IGBT)
Includes insulated metal baseplate
Better heat dissipation under high load
Bolt-down mounting for high reliability
Suitable for industrial inverters, servo drives, solar inverters
→ GB = Single, meaning one IGBT per module.
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Key Electrical Specification Comparison
Below is a technical overview based on official datasheets:
| Specification | BSM150GD60DLC | BSM150GB60DLC |
|---|
| Topology | IGBT + Diode | Half-Bridge (IGBT + IGBT) |
| VCES | 600 V | 600 V |
| Nominal Current (Tc at 55–60°C) | 150 A | 150 A |
| Peak Current (25°C) | 180 A | 180 A |
| Total Power Dissipation | 570 W | 595 W |
| Isolation Voltage | 2.5 kV | 2.5 kV |
| Operating Junction Temp | –40°C ~ 150°C | –40°C ~ 150°C |
| Package | EconoPACK (no baseplate) | Baseplate module |
| Mounting | Clamping / press-fit | Screw-mounted |
| Thermal Resistance | Higher | Lower (better cooling) |
How to Choose the Right Module (The Practical Way)
Choosing between them depends on three main factors:
1. Your circuit topology
2. Replacement compatibility
Replacing a GD module with a GB module (or vice versa) is NOT recommended, unless the engineering team validates:
Gate pin layout
Thermal behavior
Switching patterns
Package mounting area
Typical Applications – BSM150GD60DLC
BSM150GD60DLC（Dual IGBT Module, 150A / 600V）, Commonly used in medium-to-high power industrial systems:
Motor drives (VFDs)
General-purpose industrial inverters
UPS (Uninterruptible Power Supplies)
EV charging power stages
Industrial power supplies (SMPS)
Battery energy storage system inverters (BESS)
Solar PV inverters
Induction heating equipment
Typical Applications – BSM150GB60DLC
BSM150GB60DLC（Half-Bridge IGBT Module, 150A / 600V）,Commonly used in half-bridge configurations and legacy/repair systems:
Half-bridge industrial inverters
Motor control and industrial drives
Power converters for automation
Battery chargers
Controlled rectifiers
Welding machines
UPS systems
FAQ – BSM150GD60DLC & BSM150GB60DLC
1. What is the main difference between BSM150GD60DLC and BSM150GB60DLC?
BSM150GD60DLC is a dual IGBT module, while BSM150GB60DLC is a half-bridge IGBT module. They share the same voltage (600 V) and current ratings (150 A), but their internal configurations and pin layouts differ.
2. Are the two modules cross-compatible?
Not directly. Their internal topology and pin assignments are different. Replacement is possible only if the system supports the corresponding configuration (dual vs. half-bridge).
3. Are both modules manufactured by Infineon/EUPEC?
Yes. Both BSM150GD60DLC and BSM150GB60DLC are genuine Infineon (formerly EUPEC) IGBT power modules.
4. What are the typical applications for BSM150GD60DLC?
Motor drives, industrial inverters, UPS, solar inverters, BESS inverters, induction heating, welding systems, and industrial automation equipment.
5. Do both modules use the same insulation level?
Yes. Both provide a typical isolation voltage of 2.5 kV RMS (1 min).
6. Can these modules be used in high-frequency switching applications?
Yes, but switching frequency depends on cooling and total system losses. Both modules use Infineon’s efficient IGBT technology suitable for industrial switching applications.
