In various medium-voltage application scenarios such as power management systems, motor drives, DC-DC converters, industrial controls, and automotive electronics, TOSHIBA's TPH1110ENH,L1Q, with its balanced performance, has long been a frequent choice for engineers during design selection. However, against the backdrop of ongoing global supply chain disruptions and international trade uncertainties, this imported component has gradually revealed multiple pain points: unpredictable lead times (often extending for months), procurement costs vulnerable to currency fluctuations, and sluggish technical support responses. These issues severely constrain downstream companies' production efficiency and cost management. Given this industry demand, domestic substitution has evolved from an "option" to a "necessity," becoming a critical path for enterprises to ensure supply chain security, reduce expenses, improve efficiency, and enhance core competitiveness.
VBsemi, leveraging years of deep expertise in the power semiconductor field, has launched the VBQA1204N N-channel MOSFET based on its independent R&D capabilities. This product is precisely tailored as a domestic alternative to the TPH1110ENH,L1Q, offering core advantages of parameter upgrades, technological parity, and full package compatibility. It can serve as a direct replacement without any modifications to the original circuit, providing a more stable, cost-effective, and locally attuned high-quality solution for various medium-voltage electronic systems.
Comprehensive Parameter Surpassing, Ample Performance Redundancy, Adapting to More Demanding Conditions.
Designed as a domestic alternative to the TPH1110ENH,L1Q, the VBQA1204N achieves significant, leapfrog improvements in key electrical parameters, delivering more robust performance guarantees for medium-voltage applications:
Firstly, the drain-source voltage is maintained at 200V, ensuring full compatibility with the original specification. This provides reliable operation in applications with standard voltage requirements, such as industrial power supplies and motor control.
Secondly, the continuous drain current is dramatically increased to 30A, a substantial 316% improvement over the original model's 7.2A. This massive enhancement in current-carrying capability enables effortless handling of higher-power circuit designs, whether upgrading existing equipment or boosting system stability and load capacity at the same power level.
Thirdly, the on-state resistance is drastically reduced to 38mΩ (@10V gate drive), compared to the TPH1110ENH,L1Q's 114mΩ (@10V,3.6A)—a reduction of approximately 67%. This significantly lowers conduction losses, directly contributing to improved overall system efficiency. Especially in high-frequency switching applications, it minimizes heat generation, reducing thermal design pressure and cooling costs.
Additionally, the VBQA1204N supports a ±20V gate-source voltage, offering stronger gate ESD protection and noise immunity, effectively preventing false triggering in complex electromagnetic environments. The 3V gate threshold voltage design balances driving ease and switching reliability, seamlessly matching mainstream driver ICs on the market without requiring drive circuit adjustments, further simplifying the substitution process.
Enhanced with Advanced Trench Technology, Reliability and Stability Inherited and Upgraded.
The VBQA1204N employs industry-leading Trench technology, building upon the solid switching characteristics of the original model while optimizing device reliability across multiple dimensions. The device undergoes rigorous pre-production testing, including avalanche energy and high-voltage screening, demonstrating excellent performance in handling energy surges during switching events. Through optimized structural design, it reduces charge/discharge losses during switching and enhances dv/dt tolerance, perfectly matching the application scenarios of the TPH1110ENH,L1Q. Even under demanding conditions like high-frequency operation and fast transients, it maintains stable performance and can be directly replaced without circuit topology changes. Furthermore, the VBQA1204N features an ultra-wide operating temperature range of -55°C to 150°C, adapting to various harsh environments such as industrial high-temperature settings and outdoor climates. Having passed extensive reliability verifications including high-temperature/high-humidity aging tests, its failure rate is well below industry averages, providing solid assurance for long-term, uninterrupted equipment operation—making it especially suitable for critical fields like automotive systems, industrial automation, and consumer electronics.
Fully Compatible Package, Enabling "Virtually Cost-Free, Risk-Free, and Immediate" Replacement.
For downstream enterprises, a core concern in domestic substitution is the R&D investment and time cost involved. The VBQA1204N addresses this fundamentally through its package design. The device uses a DFN8(5X6) package, which is fully compatible with the TPH1110ENH,L1Q in terms of pinout, pin spacing, package dimensions, and thermal footprint. Engineers need not modify the original PCB layout or adjust thermal management, achieving "plug-and-play" replacement. This high compatibility offers clear benefits: it slashes verification time, eliminating the need for circuit redesign, simulation, and extensive testing—sample validation can typically be completed within 1-2 days. It also avoids added production costs from PCB revisions and mold changes while preserving the original product's form factor, eliminating re-certification needs. This effectively shortens the supply chain cycle, helping enterprises rapidly achieve import substitution and capture market opportunities.
Local Strength Assurance, Dual Peace of Mind for Supply Chain Security and Technical Support.
Compared to the unstable supply chains of imported components affected by international logistics, trade policies, and exchange rates, VBsemi leverages China's robust semiconductor industry chain, with modern production bases and R&D centers in regions like Jiangsu and Guangdong. This enables full-process independent R&D and stable mass production of the VBQA1204N. Currently, the standard lead time for this model is compressed to within 2 weeks, with emergency orders enabling 72-hour rapid delivery. This mitigates risks from global supply volatility, tariffs, and geopolitics, ensuring smooth enterprise production plans. Simultaneously, as a local brand, VBsemi provides a professional technical support team offering "one-on-one" customized services: comprehensive documentation including substitution verification reports, datasheets, thermal design guides, and application circuit references, plus tailored selection advice and circuit optimization based on specific customer needs. For any technical issues during substitution, the team delivers rapid responses within 24 hours, assisting via on-site or remote resolution. This彻底 addresses the pain points of slow support and high communication costs with imported components, making substitution smoother and worry-free.
From power management and motor drives to DC-DC converters and industrial controls; from automotive electronics and LED lighting to consumer appliances and battery management systems, the VBQA1204N, with its core advantages of "superior parameters, enhanced stability, package compatibility, controllable supply, and attentive service," has become the preferred domestic alternative to the TPH1110ENH,L1Q. It has already achieved applications in several leading companies across multiple industries, receiving high market recognition. Choosing the VBQA1204N is not merely a simple component replacement; it is a strategic step for enterprises in upgrading supply chain security, optimizing production costs, and boosting product competitiveness—requiring no assumption of R&D modification risks while enjoying better performance, more stable supply, and more convenient technical support.