Content last revised on September 10, 2026
FZ1200R17KF6CB2 Infineon 1700V 1200A Single IGBT Module
How can medium-voltage power converters maintain thermal equilibrium under extreme cyclical current loads without compromising dielectric isolation? The FZ1200R17KF6CB2 single-switch IGBT Module from Infineon Technologies provides a proven answer by combining a 1700V collector-emitter rating with a 1200A continuous current capability and an ultralow thermal resistance of 13.0 K/kW (0.013 K/W). It delivers high power density, robust short-circuit withstand capability (10 µs), and low switching losses across harsh operating environments. For medium-voltage industrial and traction converters prioritizing thermal margin, this 1700V module is the optimal choice.
What makes this module exceptionally reliable in heavy-duty converters? Its optimized internal layout and low thermal resistance ensure rapid thermal dissipation during high-power switching transients.
Frequently Asked Questions
Addressing Core Engineering and Integration Challenges
How does the 10 µs short-circuit withstand time impact gate driver protection design?
The module provides a guaranteed 10 µs short-circuit withstand time (tsc) at VCC = 1000V and Tvj = 125°C with peak fault current up to 4800A. This gives standard desaturation detection circuits ample response time to trigger soft turn-off without exceeding the peak collector voltage limits.
How does the junction-to-case thermal resistance (RthJC = 13.0 K/kW) influence thermal design?
An RthJC of 13.0 K/kW per switch acts like a wide thermal superhighway, channeling junction heat directly into the baseplate. This low thermal resistance reduces junction temperature spikes under dynamic load swings, allowing designers to downsize liquid or forced-air cooling blocks while preserving safe operating margins.
What gate charge considerations apply when driving the FZ1200R17KF6CB2 at high frequencies?
With a total gate charge (QG) of 14.5 µC and input capacitance (Cies) of 79 nF, driving the gate requires adequate peak current capability from the gate driver stage. Utilizing low-inductance gate connections and proper gate resistance (RGon/RGoff = 1.2 Ω) helps suppress parasitic turn-on and gate ringing.
How does the integrated soft-recovery freewheeling diode benefit inverter operation?
The forward-integrated Emitter Controlled diode features a forward voltage drop of 1.80V and soft recovery characteristics, effectively damping di/dt induced overvoltage spikes and reducing electromagnetic interference across high-power converter topologies.
Key Parameter Overview
Critical Electrical and Thermal Specifications
| Parameter Category | Technical Specification | Rated Value | Test / Operating Condition |
|---|---|---|---|
| Voltage Ratings | Collector-Emitter Voltage (VCES) | 1700 V | Tvj = 25°C / 125°C |
| Current Capability | Continuous DC Collector Current (IC) | 1200 A (1950 A max) | TC = 80°C (TC = 25°C) |
| Peak Current | Repetitive Peak Collector Current (ICRM) | 2400 A | tp = 1 ms |
| Conduction | Collector-Emitter Saturation Voltage (VCE(sat)) | 2.60 V (typ) / 3.10 V (max) | IC = 1200 A, VGE = 15 V, Tvj = 25°C |
| Power Dissipation | Total Power Dissipation (Ptot) | 9.60 kW | TC = 25°C, Tvj max = 150°C |
| Dynamic Switching | Turn-on / Turn-off Energy Loss (Eon / Eoff) | 330 mJ / 480 mJ | IC = 1200 A, VCE = 900 V, Tvj = 125°C |
| Thermal Impedance | Thermal Resistance, Junction to Case (RthJC) | 13.0 K/kW (0.013 K/W) | Per IGBT switch |
| Short-Circuit Ruggedness | Short-Circuit Withstand Time (tsc) | 10 µs | VGE ≤ 15V, VCC = 1000V, Tvj = 125°C |
Download the FZ1200R17KF6CB2 datasheet for detailed specifications and performance curves.
Technical Deep Dive
Silicon Architecture and Switching Dynamics
The FZ1200R17KF6CB2 employs second-generation low-loss silicon technology paired with an advanced Emitter Controlled fast-recovery diode. The internal single-switch topology is built inside an industry-standard IHM 130mm housing, providing extensive creepage and clearance distances suited for medium-voltage isolation requirements.
In high-power switching stages, stray inductance combined with sharp diode reverse recovery can trigger destructive transient voltages. The integrated freewheeling diode functions much like a high-performance shock absorber in a heavy vehicle, smoothly dissipating recovery charge and curbing steep voltage spikes during high di/dt commutation. Designers implementing advanced busbar layouts can explore methods for minimizing stray inductance in traction converters to fully exploit this switching behavior.
Furthermore, proper thermal interfacing and gate drive synchronization remain critical to long-term reliability. Engineers optimizing power stages can consult technical guidance on IGBT design integration, gate drive, and thermal management to achieve balanced operation under heavy electrical stress.
Application Scenarios & Value
Delivering High-Power Conversion Across Demanding Systems
High-power conversion platforms operating on 690V AC lines or 900V–1100V DC links demand robust safety margins against grid transients and switching surges. The 1700V blocking voltage of the FZ1200R17KF6CB2 provides substantial headroom over standard 1200V devices, reducing the need for complex multi-level clamping topologies in high-power industrial motor drives and wind turbine converters.
In electric rail traction systems, converter modules encounter rapid thermal cycling and extreme acceleration current spikes. The FZ1200R17KF6CB2 supports repetitive peak currents up to 2400A, ensuring stable performance during heavy torque demands. For installations requiring higher current handling in the same voltage class, the related FZ1600R17KF6C_B2 offers an expanded 1600A continuous rating.
By integrating rugged silicon with low thermal resistance and high short-circuit capability, this power module offers system designers a dependable foundation for heavy-duty conversion architectures.
