As the electrification of automobiles accelerates and Industry 4.0 demands increasingly smaller and smarter equipment, traditional relays and fuses can no longer meet the requirements of modern electronic systems for high reliability, fast response times, and intelligent diagnostics.
As a global leader in power semiconductors, Infineon has set industry benchmarks in overcurrent protection, temperature monitoring, and load diagnostics with its smart power switches, which leverage cutting-edge technologies such as SMART7.
As a renowned distributor of electronic components, Shenzhen Mingjiada Electronics Co., Ltd., leveraging its robust stock inventory and supply chain advantages, now offers a comprehensive, long-term supply of the full range of Infineon smart power switch series to its customers, covering 12V, 24V, 48V, and the complete PROFET™ solution portfolio.
Key Models and Selection Guide
For different application scenarios, Infineon’s smart power switches are primarily categorized into high-side switches, low-side switches, and multi-channel SPI-controlled series. Mingjiada Electronics maintains a large stock of genuine, in-stock units for the following popular models:
1. A Classic Choice for Body Control and Domain Control: PROFET™+2 12V Series
For 12V automotive powertrains, the BTS7xxx series is the ideal choice for replacing R5W bulbs, relays, and LED modules.
Featured Model: BTS7200-4EPA
Key Specifications: 4-channel high-side switch, on-resistance 200 mΩ per channel, operating voltage 3.1 V–28 V.
Technical Highlights: Utilizes SMART7 technology, featuring inverse current conduction capability (InverseON) and intelligent restart control. Even in the event of a load short circuit, closed-loop temperature management prevents damage.
Application Scenarios: Body domain controllers, cockpit lighting control, HVAC fans.
Featured Models: BTS50085-1TMB / BTS50085-1TMA
Key Specifications: Single-channel high-side switch, on-resistance as low as 9 mΩ, maximum output current up to 44 A (90 A transient).
Technical Highlights: Highly competitive TO-220-7 package, integrated current sensing (IS) and open-load detection.
Applications: EPS steering systems, electric heating loads (PTC), power distribution boxes.
2. New Energy and Heavy-Duty Applications: Power PROFET™+ 24/48V Series
With the rise of 48V mild hybrid systems and voltage platform upgrades in commercial vehicles, Mingjiada has prioritized stocking this series to address the challenges of high voltage and high current.
Featured Model: BTH50015-1LUA
Key Specifications: Single-channel high-side switch, on-resistance as low as 1.5 mΩ, load capacity up to 35A.
Technical Highlights: Compact 8-pin TO leadless package, saving 23% PCB space compared to traditional D2PAK. Calibrated load current detection accuracy up to ±5%, supporting ISO 26262 ASIL functional safety levels.
Application Scenarios: 48V battery disconnection, electric fans, electric compressors, active suspension systems.
Why Choose Smart Switches Over Traditional Fuses?
Resettable Function: Infineon smart switches feature overcurrent and overheat protection. They can automatically reset or be reset via a command after a fault is resolved, reducing maintenance costs and spare fuse inventory.
Long Service Life: Mechanical relays have an average switching cycle of approximately 200,000 cycles, while Infineon PROFET switches can exceed 1 million cycles, with no arcing or contact bounce.
Intelligent Diagnostics: Through the IS pin, the MCU can read the load current status in real time, enabling precise open-circuit detection and ground short-circuit protection—critical for the safety of ADAS and autonomous driving.
Mingjiada Electronics: Your Expert in Infineon Power Devices
Since its establishment in 1996, Shenzhen Mingjiada Electronics Co., Ltd. has specialized in the distribution of electronic components and has obtained ISO 9001 quality management system certification. As a key bridge connecting original manufacturers with R&D and manufacturing entities, we offer the following unique support for Infineon’s smart power switch series:
Full-range supply, automotive-grade quality: Whether for the BTS series for 12V systems or the BTH series for 48V high-voltage applications, Mingjiada guarantees 100% genuine OEM products, with all materials compliant with the AEC-Q100 Grade 1 automotive standard.
In-Stock Inventory, Rapid Delivery: With large-scale distribution centers in Shenzhen and Hong Kong, we maintain a safety stock of popular models such as the BTS7200, BTS50085, and BTH50015, supporting express shipping within 24–48 hours to meet customers’ urgent trial production and bulk delivery needs.
Conclusion
From traditional relays to today’s smart high-side switches, power distribution is undergoing a profound transformation. With its powerful PROFET series of smart switches, Infineon is helping global manufacturers build safer, more efficient, and smarter automotive and industrial equipment.
Shenzhen Mingjiada Electronics Co., Ltd. is committed to providing you with a stable supply and highly competitive prices.
To purchase Infineon smart power switches immediately, please contact us via the following methods:
Contact: Mr. Chen
Hotline: +86 13410018555 / 0755-83294757
Email: sales@hkmjd.com
Company Address: Rooms 1239-1241, New Asia Guoli Building, Zhenzhong Road, Futian District, Shenzhen, Guangdong Province
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