In an era demanding both performance and supply chain agility, engineers are actively seeking reliable alternatives for established high-voltage MOSFETs. If you are considering Infineon's IPS70R1K4CEAKMA1 for your 700V applications, evaluate the high-value Chinese-designed solution: VBsemi's VBFB17R05S.
This is not just a pin-to-pin substitute. The VBFB17R05S represents a strategic, performance-optimized choice, delivering robust electrical characteristics alongside the cost and supply chain advantages of a modern, diversified source.
Beyond Direct Replacement: A Value-Engineered Solution
While the Infineon IPS70R1K4CEAKMA1 is a capable CoolMOS CE device with its 700V, 5.4A rating, the VBFB17R05S is engineered to meet the stringent efficiency and cost targets of consumer and industrial markets. Based on the same 700V drain-source voltage and industry-standard TO-251 package, it delivers key advantages:
Optimized Conduction Performance: The VBFB17R05S features a competitive on-resistance (RDS(on)) of 1000mΩ (1.0Ω) at a 10V gate drive. This ensures efficient power handling in high-voltage circuits, directly contributing to reduced conduction losses and cooler operation compared to many standard alternatives.
Robust Current Rating: With a continuous drain current rating of 5A, it provides solid current capability for its class, suitable for a wide range of offline power applications.
Superjunction (SJ) Technology: Utilizing advanced SJ_Multi-EPI technology, the VBFB17R05S achieves the fast-switching benefits and high efficiency characteristic of modern superjunction MOSFETs, making it an ideal candidate for high-frequency designs.
Where It Excels: Application Benefits
The technical profile of the VBFB17R05S translates into reliable performance in its primary applications:
Consumer SMPS & Adapters: For cost-sensitive switch-mode power supplies, chargers, and adapters, its 700V rating offers ample margin for offline rectification, while its efficient switching helps meet global energy efficiency standards.
Lighting Systems: In LED driver circuits and lighting ballasts, the combination of high voltage capability and good switching characteristics supports compact, efficient, and reliable designs.
Auxiliary Power Supplies: It serves as an excellent choice for industrial control, appliance, and other systems requiring robust, low-to-medium power high-voltage switching.
The Strategic Value: Performance, Cost & Supply Chain Resilience
Selecting the VBFB17R05S is a decision that positively impacts your bill of materials (BOM) and supply chain strategy.
Guaranteed Performance Suitability: The device is designed to meet or exceed the key operational requirements for replacing the IPS70R1K4CEAKMA1 in many applications, ensuring a smooth design transition with low risk.
Mitigate Supply Chain Risk: Sourcing from a leading Chinese manufacturer like VBsemi diversifies your component supply. This provides a stable alternative, reducing dependency on single-source suppliers and mitigating risks from geopolitical shifts or market allocations.
Superior Cost Efficiency: The competitive pricing of domestic Chinese components like the VBFB17R05S can significantly lower overall system cost, enhancing your product's competitiveness in price-sensitive markets without compromising on quality or reliability.
Conclusion: A Smart, High-Value Choice for High-Voltage Designs
VBsemi’s VBFB17R05S is more than an alternative; it's a strategic component choice for the global power design market. It delivers the necessary high-voltage performance to confidently replace the IPS70R1K4CEAKMA1, provides the benefits of modern superjunction technology, and comes with the crucial advantages of cost optimization and supply chain resilience.
For your next-generation consumer power supplies, lighting drivers, or industrial auxiliary power units, evaluating the VBFB17R05S isn't just about finding a replacement—it's about choosing a smarter, more sustainable, and value-driven solution.