Leapers Semiconductor adopts Melexis silicon RC snubber to enhance next-generation power modules
Melexis has announced that Leapers Semiconductor is integrating the Melexis MLX91299 silicon-based RC snubber into its next-generation power modules, strengthening performance and reliability for automotive and energy applications.
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The collaboration highlights how close cooperation between module manufacturers and semiconductor specialists can translate advanced component innovation into tangible system-level benefits. Leapers’ power modules are widely deployed in demanding environments such as electric vehicles, charging infrastructure, renewable energy systems, and industrial power conversion.
Addressing SiC switching challenges at module level
To meet growing market demands for higher efficiency, power density, and reliability, Leapers increasingly relies on silicon carbide (SiC) power devices operating at higher switching frequencies and voltages. While SiC enables significant performance gains, it also introduces challenges including voltage overshoot, ringing, and electromagnetic interference (EMI), which must be managed carefully to avoid limiting system performance.
Leapers selected the Melexis MLX91299 silicon RC snubber to address these effects directly within the power module. Unlike conventional discrete RC snubbers applied externally, the MLX91299 integrates the resistor and capacitor on a single silicon bare die, enabling placement close to the switching components where suppression is most effective.
Integrated design enables compact, robust modules
By integrating the bare-die RC snubber within the module, Leapers can suppress voltage spikes and high-frequency oscillations while maintaining efficient thermal paths and supporting high-temperature operation. This approach allows the company to fully leverage SiC device performance without compromising compact layouts or module robustness.
The MLX91299 is fully compatible with Leapers’ existing assembly and test processes, enabling predictable performance and seamless integration into production without changes to established manufacturing flows.
Industry perspectives
According to Xuanming Ding, CEO of Leapers Semiconductor, the integrated snubber acts as a performance enabler for next-generation power devices, significantly improving reliability while addressing multiple module-level challenges. By combining precise market positioning with optimized engineering, Leapers was able to rapidly introduce a SiC power module with an integrated RC snubber, delivering higher energy conversion efficiency and quality for end customers.
From Melexis’ perspective, Billy Ye, Product Line Director, noted that the MLX91299 represents a major step forward in module-level integration of SiC snubber devices. Its adoption in Leapers’ advanced power modules demonstrates how silicon-based RC snubbers can boost SiC performance and reliability while remaining fully compatible with standard production processes.
Validating module-level Si-RC integration
Leapers’ implementation validates the practical benefits of integrating silicon-based RC snubbers directly into advanced power modules. The approach supports higher efficiency, improved EMI behavior, and enhanced reliability across automotive, industrial, and energy management applications, reinforcing the role of the MLX91299 in next-generation high-performance power electronics.
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