Driven by the dual imperatives of automotive electrification and supply chain autonomy, the domestic substitution of core power devices has transitioned from a backup plan to a strategic necessity. In applications demanding high current handling, low loss, and robust reliability, identifying a powerful, high-quality, and supply-stable domestic alternative is a critical task for automakers and Tier-1 suppliers. Focusing on the widely adopted 60V N-channel MOSFET from Nexperia—the BUK762R6-60E,118—the VBL1602 from VBsemi emerges as a formidable contender. It achieves precise performance compatibility while realizing a significant leap in key parameters through advanced Trench technology, representing an evolution from "direct replacement" to "performance surpassing."
I. Parameter Comparison and Performance Advantages: The Edge of Advanced Trench Technology
The BUK762R6-60E,118 is recognized in applications such as motor drives and power management for its 60V voltage rating, 120A continuous drain current, and low on-resistance. However, as demands for higher efficiency and power density increase, further optimization of conduction and switching losses becomes essential.
1. Building on hardware compatibility with the same 60V drain-source voltage and TO-263 package, the VBL1602 achieves notable breakthroughs in electrical characteristics through advanced Trench technology:
- Lower On-Resistance: With VGS = 10V, the RDS(on) is as low as 2.5mΩ, outperforming the reference model. According to the conduction loss formula Pcond = I_D^2⋅RDS(on), this reduction significantly decreases losses at high current levels, improving system efficiency and thermal performance.
- Higher Current Capability: The continuous drain current rating of 270A substantially exceeds that of the reference part, providing greater design margin and reliability in high-current applications.
- Optimized Switching Performance: The device features favorable gate charge and capacitance characteristics, contributing to reduced switching losses and supporting higher frequency operation where applicable.
II. Application Scenarios: From Functional Replacement to System Enhancement
The VBL1602 enables pin-to-pin replacement in existing designs using the BUK762R6-60E,118 while driving system-level improvements:
1. Motor Drive Systems (e.g., automotive pumps, fans, window lifts): Lower conduction losses improve efficiency and reduce thermal stress, enhancing longevity.
2. DC-DC Converters & Power Distribution: The high current capability and low RDS(on) support efficient power conversion and distribution in 12V/24V automotive systems.
3. Battery Management & Protection Circuits: Suitable for high-side switches in BMS, offering reliable performance and low loss.
4. Industrial Power Supplies & UPS: The robust ratings and efficiency make it ideal for various industrial power applications requiring high reliability.
III. Beyond Specifications: Reliability, Supply Chain, and Total Cost of Ownership
Choosing the VBL1602 is both a technical and strategic decision:
1. Domestic Supply Chain Security: VBsemi ensures a controllable supply chain from design to package & test, mitigating risks related to availability and lead times.
2. Cost Competitiveness: With superior performance parameters, the VBL1602 offers an attractive value proposition, helping reduce overall BOM costs.
3. Localized Technical Support: Customers benefit from rapid, full-cycle support including selection, validation, and troubleshooting, accelerating time-to-market.
IV. Replacement Guidelines and Validation Steps
For designs currently using or planning to use the BUK762R6-60E,118, the following steps are recommended:
1. Electrical Performance Verification: Compare key waveforms (switching, losses, thermal) under identical conditions. Leverage the lower RDS(on) of the VBL1602 to potentially optimize drive parameters for further efficiency gains.
2. Thermal & Mechanical Validation: Due to reduced losses, thermal design may be relaxed, allowing potential savings in heatsink size or cost.
3. Reliability & System Testing: Conduct rigorous electrical, thermal, and environmental stress tests, followed by system-level and application-specific validation to ensure long-term reliability.
Advancing Toward Autonomous, High-Performance Power Solutions
The VBsemi VBL1602 is not merely a domestic alternative to an international MOSFET; it is a high-performance, high-reliability solution for next-generation automotive and industrial power systems. Its advantages in current handling, conduction loss, and efficiency can help customers achieve superior system performance, density, and competitiveness.
In an era of accelerating electrification and domestic substitution, selecting the VBL1602 is both a rational choice for performance upgrade and a strategic step toward supply chain resilience. We confidently recommend this product and look forward to partnering with you to drive innovation in power electronics.