FZ2400R17HE4P_B9 Infineon 1700V 2400A IHM-B IGBT Module

Content last revised on March 18, 2026

High-Power 1700V IGBT Solutions: Engineering Insights into the FZ2400R17HE4P_B9

The Infineon FZ2400R17HE4P_B9 represents a critical evolution in the IHM-B module family, specifically designed to address the rigorous thermal and mechanical demands of mega-watt class power conversion. By integrating TRENCHSTOP™ IGBT4 technology with a 1700V blocking voltage and a 2400A continuous current rating, this module provides the power density required for heavy-duty industrial applications. Its unique PressFIT pins and Pre-applied Thermal Interface Material (TIM) eliminate common assembly variables, ensuring consistent thermal performance across large-scale deployments. For systems requiring maximum uptime in wind energy or traction, the FZ2400R17HE4P_B9 serves as a high-reliability switching core.

Key Specifications: 1700V | 2400A | Tj(op) = 150°C
Key Benefits: Solderless PressFIT assembly; Factory-optimized thermal contact.
Primary Design Answer: How does the B9 suffix impact system reliability? It indicates a pre-applied thermal material that prevents "pump-out" effects and ensures a uniform thermal resistance of Rth(j-c), significantly reducing the risk of localized hotspots.
For 1700V power stages prioritizing long-term thermal stability and assembly precision, the FZ2400R17HE4P_B9 is the industry-standard choice.

Key Parameter Overview

Decoding the Specs for Enhanced Thermal Reliability

The following technical data is extracted from the official manufacturer documentation to support engineering evaluation and heatsink sizing.

Download the FZ2400R17HE4P_B9 datasheet for detailed specifications and performance curves.

Application Scenarios & Value

Achieving System-Level Benefits in High-Power Infrastructure

For 690V industrial grids and renewable energy systems, the FZ2400R17HE4P_B9 provides a robust platform for high-efficiency inversion. Engineers often face the challenge of maintaining thermal symmetry in paralleled modules; the B9 pre-applied TIM addresses this by guaranteeing a specific material thickness that manual application cannot replicate.

In a wind-to-grid conversion environment, the module’s 1700V rating provides the necessary safety margin against DC-link voltage spikes. The PressFIT auxiliary terminals provide a vibration-resistant connection, which is vital for nacelle-mounted electronics. For designers considering even higher current handling or different package footprints, comparing this with the FZ3600R17HE4 can help determine the optimal balance between module count and current density.

Furthermore, this module is a staple in traction drives and large-scale Solar Inverters. In these applications, the 1.95V Vce(sat) minimizes conduction losses during high-load periods, effectively reducing the cooling requirements. By utilizing TRENCHSTOP™ IGBT4 technology, the module achieves a soft-switching characteristic that simplifies the design of the Snubber Circuit and reduces electromagnetic interference (EMI) in the system.

Technical & Design Deep Dive

A Closer Look at PressFIT and Pre-Applied TIM Synergy

The "P" in FZ2400R17HE4P_B9 signifies PressFIT technology, which represents a paradigm shift in power module assembly. To visualize the engineering benefit: if a traditional soldered connection is like a glued joint that can crack under repeated thermal expansion, PressFIT is like a cold-welded mechanical bond. This eliminates the "solder fatigue" failure mode common in high-cycle Power Cycling applications.

The B9 suffix introduces a factory-applied Thermal Interface Material. In high-power electronics, Thermal Resistance is the "friction" that heat encounters as it moves from the silicon die to the heatsink. Manual grease application often leads to air pockets or excessive thickness, which acts as a thermal insulator. The B9 material is applied using a screen-printing process that ensures 100% coverage with a honeycomb structure. Upon the first heating cycle, this structure flows to fill every microscopic void between the FZ2400R17HE4P_B9 baseplate and the heatsink.

Strategically, using modules with pre-applied TIM allows for a more aggressive Thermal Design. It enables engineers to operate closer to the 150°C Tvj(op) limit with the confidence that the thermal path is optimized and repeatable across thousands of units. This is particularly relevant when adhering to IEC 61800-3 standards for industrial drive reliability. For further context on advanced thermal strategies, refer to Infineon technical papers on Infineon .XT Technology.

Frequently Asked Questions

How does the PressFIT technology in the FZ2400R17HE4P_B9 improve long-term reliability compared to traditional soldering?
PressFIT creates a gas-tight mechanical connection that is immune to the solder joint aging and thermal cracking typically seen in high-vibration environments like wind turbines. It eliminates the thermal stress of the soldering process itself during manufacturing.

What are the specific maintenance advantages of the pre-applied B9 Thermal Interface Material?
The B9 material is engineered to resist "pump-out"—the phenomenon where thermal grease is pushed out from under the module due to thermal expansion cycles. This ensures that the Thermal Resistance remains stable over a 20-year service life, reducing the need for periodic re-greasing.

Can the FZ2400R17HE4P_B9 be used in 3-level inverter topologies?
Yes. Due to its 1700V blocking capability and high RBSOA (Reverse Bias Safe Operating Area), it is frequently utilized in Neutral Point Clamped (NPC) topologies for 1000V-1500V DC-link systems, providing a balance of switching speed and voltage ruggedness.

As a specialist distributor, we provide these technical insights to assist in the selection of the FZ2400R17HE4P_B9. This module is part of a broader ecosystem of high-power components, including the FZ2400R17KE3_S1 and FZ1200R17HE4. For detailed integration support, including gate driver compatibility and thermal simulation files, please consult your technical account manager.