Summary and Call to Action

Application of B25615A7706J101 in High-Speed Rail Traction Systems

Special Challenges for Rail Transit Traction Systems

Traction converters in high-speed rail and urban rail transit are the hearts of trains. The performance of their filter capacitors directly affects the efficiency and reliability of traction systems. Trains face complex environments during operation including strong mechanical vibration, wide temperature range changes, and electromagnetic interference. Additionally, traction systems have extremely high safety level requirements. Any capacitor failure may cause train stoppage or even safety accidents.

TDK-EPCOS B25615A7706J101 Solution

B25615A7706J101 is a heavy-duty aluminum electrolytic capacitor launched by TDK-EPCOS for rail transit applications, with a capacitance of 7706μF, complying with railway industry EN standards and relevant Ministry of Railways technical specifications. This product has passed strict vibration testing and temperature cycling testing, capable of maintaining stable performance under various operating conditions of train operation.

Key Product Advantages

Railway-Level Reliability Certification: B25615A7706J101 fully complies with relevant standards for railway applications, passing multiple rigorous tests including vibration shock, temperature cycling, and damp-heat aging, ensuring reliable operation throughout the train's entire lifecycle.

Wide Temperature Operating Range: The product can operate stably in temperature ranges from -40°C to +105°C, adapting to various climate conditions in northern cold winters and southern hot summers.

Vibration Resistant Design: Uses special mechanical structure design, with effective vibration damping mechanisms between internal cells and housing, capable of withstanding strong mechanical vibration during train operation.

Long-Life Design: Service life can reach over 4,000 hours under rated conditions, reducing capacitor replacement frequency during train maintenance and lowering operation and maintenance costs.

Typical Application Scenarios

High-Speed Train Traction Converters: Provides DC-Link filtration for CRH and EMU trains
Urban Rail Vehicle Traction Systems: Provides reliable power for metro and light rail vehicles
Electric Locomotive Auxiliary Power Supplies: Provides stable DC power for locomotive control systems
Railway Signal Systems: Ensures power supply safety for railway signal equipment