company blog about Mingjiada Electronics — Supply and Recycling of Infineon IMBG75R Series CoolSiC™ 750V G2 Silicon Carbide MOSFETs (For AI Server Applications)

With the explosive growth in power consumption driven by large AI models and high-performance servers, server power supply units (PSUs) are evolving towards ultra-high efficiency, high switching frequencies and high power density. Thanks to its outstanding switching performance and high-temperature stability, Infineon’s second-generation 750V CoolSiC™ MOSFET G2 series (IMBG75R) has become the core power device for the next generation of AI server power supply systems.

Shenzhen Mingjiada Electronics Co., Ltd. maintains a long-term stock of genuine Infineon IMBG75R silicon carbide MOSFETs across the full product range. The company also offers premium prices for the buyback of surplus and obsolete stock from this series across all industries, providing high-quality component supply and inventory optimisation services to customers in the AI server, data centre, industrial power supply and new energy sectors.

I. Complete List of IMBG75R Series Models (Supply and Buy-back)

The IMBG75R series utilises the PG-TO263-7 (D2PAK-7) surface-mount package with an integrated independent source pin (Kelvin Source), covering an on-resistance (RDS(on)) range from 7 mΩ to 60 mΩ to suit power supply designs of various power ratings. The complete list of models includes:

IMBG75R007M2H

IMBG75R011M2H

IMBG75R016M2H

IMBG75R020M2H

IMBG75R025M2H

IMBG75R033M2H

IMBG75R040M2H

IMBG75R050M2H

IMBG75R060M2H

II. Key Technical Features

This series is based on Infineon’s second-generation CoolSiC™ trench silicon carbide technology, which delivers a 20% to 35% improvement in key Figure of Merit (FOM) metrics compared to the previous generation, offering the following significant advantages:

Ultra-low switching losses: Industry-leading RDS(on)×Qfr, RDS(on)×Qoss and RDS(on)×QG parameters significantly reduce power losses in both hard-switching and soft-switching topologies, helping power supply systems achieve efficiencies exceeding 97 per cent.

High robustness and reliability: 100% avalanche test compliance, capable of withstanding high-voltage busbar conditions exceeding 500 V, and effectively resisting parasitic conduction effects.

Outstanding thermal performance: Utilising Infineon’s patented .XT diffusion bonding process, it delivers excellent heat dissipation, with a maximum operating junction temperature of 175 °C (up to 200 °C for certain models) and extremely low thermal resistance.

Simplified driver design: A low Crss/Ciss ratio combined with a high gate threshold voltage VGS(th) supports unipolar gate driving (0 V turn-off), reducing the complexity of the driver circuit; independent drive source pins improve current sharing in high-power multi-device parallel configurations.

III. Typical Applications: AI Servers and Data Centres

The IMBG75R series is specifically designed for high-frequency, high-voltage, high-power power supply applications, with AI servers being its core application area:

AI server power supplies (PSUs): Totem-pole PFC boost circuits and LLC/CLLC resonant DC-DC converters, meeting the instantaneous high-current power supply requirements of high-power GPUs (such as the NVIDIA H100 and B200).

Data centre power supply architecture: three-phase high-voltage server power supplies and high/low-voltage DC-DC conversion, helping to reduce the PUE energy consumption metric in data centres.

Energy storage and backup power: data centre energy storage converters (PCS) and battery energy storage systems (BESS).

Other industrial applications: photovoltaic inverters, commercial and industrial energy storage, DC charging station power modules, high-power UPS systems, solid-state circuit breakers (SSCBs), etc.

IV. Mingjiada’s Service Commitment

Immediate Availability: Covering the full IMBG75R series; genuine, original products; supporting both sample and bulk supply.

Long-Term Buyback: We offer high-value buyback of surplus stock for this series and similar Infineon CoolSiC™ MOSFETs from manufacturers, solution providers and contract manufacturers, providing professional evaluation and flexible settlement terms.

Please contact Shenzhen Mingjiada Electronics Co., Ltd. for the latest stock lists, quotations or enquiries regarding buy-back arrangements.

If you are interested, please contact Mr Chen by telephone:

Mobile: +86 13410018555

Email: sales@hkmjd.com

Website: https://www.integrated-ic.com/

Address: Rooms 1239–1241, Guoli Building, Zhenzhong Road, Futian District, Shenzhen