MDR

The YMIN MDR series represents a line of high-performance, high-voltage film capacitors specifically engineered for high-end industrial power applications. Leveraging mature manufacturing processes and refined structural optimization, the series overcomes the performance limitations of traditional capacitors. With core advantages such as ultra-high capacitance density, stable operation across a wide temperature range, strong interference resistance, and a long, maintenance-free service life, these capacitors are ideally suited for non-vehicular high-voltage power systems—including energy storage, industrial variable-frequency drives (VFDs), high-voltage inverters, auxiliary power supplies for rail transit, and industrial high-frequency rectification. They serve as the premier component choice for voltage regulation, filtering, energy buffering, and harmonic suppression in high-power industrial equipment.

I. Core Specifications: Adaptable to Diverse Industrial High-Voltage Conditions
The MDR series offers an exceptionally broad specification range, meeting the customization needs of industrial equipment across various power and voltage levels with outstanding compatibility. Rated voltages span from 450V to 2700V, fully accommodating medium-to-high voltage industrial power platforms. Rated capacitance ranges from 5μF to 5000μF; the ultra-high capacitance density significantly reduces the overall volume of the equipment, facilitating compact and integrated designs. With an operating temperature range of -55°C to 105°C, the capacitors function stably in extreme temperatures. The core hotspot temperature is strictly controlled below 101°C, effectively eliminating issues such as overheating and performance degradation caused by prolonged high-load operation. This makes them perfectly suited for complex industrial environments, including harsh outdoor conditions and high-temperature scenarios within enclosed cabinets.

II. Core Advantages: Ensuring Operational Stability for Industrial Equipment
1. Superior Thermal Control and Extended Service Life: Featuring an optimized core structure and efficient heat dissipation design, the series ensures uniform heat distribution without localized heat accumulation, resulting in minimal capacitance degradation under high-temperature, full-load conditions. With a service life exceeding 100,000 hours under rated conditions, these capacitors significantly reduce the frequency of component replacement and maintenance costs compared to standard industrial capacitors, meeting the demands of continuous, long-term industrial operation.

2. Strong Interference Resistance and High Reliability: Optimized for high-frequency industrial electromagnetic environments, the series boasts excellent ripple current handling capabilities and electromagnetic compatibility (EMC) characteristics. It effectively suppresses circuit harmonics and filters high-frequency noise, ensuring stable system voltage output. It supports compatibility and synergy with next-generation power devices such as IGBTs and SiC components, significantly enhancing the energy conversion efficiency of high-voltage inverter and variable-frequency drive systems while preventing issues like voltage fluctuations and operational instability.

3. Fully customized adaptability: Supports personalized customization across various voltage ratings, capacitance values, and structural configurations; product dimensions and electrical parameters can be optimized based on the power specifications, installation space, and thermal management requirements of industrial equipment. Additionally, the brand offers professional services for electromagnetic compatibility (EMC) simulation and collaborative thermal management design, precisely meeting the integration needs of diverse high-power industrial power systems.

4. High-safety protection design: Features a flame-retardant housing and a multi-layered explosion-proof structure. It offers comprehensive protection against overvoltage, overcurrent, and high temperatures, boasting excellent withstand-voltage performance and resistance to dielectric breakdown, bulging, or failure. This eliminates safety hazards during the operation of high-voltage industrial circuits and ensures compliance with industrial electrical safety standards.

III. Core Application Scenarios

The MDR series focuses on the industrial high-voltage power sector, precisely catering to various types of high-power stationary (non-vehicular) power equipment. Core application scenarios include:

1. New energy energy storage systems: Power Conversion Systems (PCS), energy storage inverters, and distributed energy storage cabinets; used for DC voltage stabilization, energy buffering, and grid-connection filtering to enhance charge/discharge stability and grid-connection precision.

2. Industrial variable-frequency and drive equipment: High-power industrial variable-frequency drives (VFDs), servo drive systems, and air compressor variable-frequency control systems; effectively suppresses harmonics and ensures stable equipment operation across both low- and high-speed conditions.

3. High-voltage charging equipment: Industrial and commercial DC charging piles, energy storage-integrated charging piles, and high-power charging modules; meets the voltage stabilization and filtering requirements of high-voltage fast-charging circuits, improving charging efficiency and equipment lifespan.

4. Rail transit and power infrastructure: Auxiliary power supply systems for rail transit, industrial high-voltage rectifiers, and PV/wind power inverters; designed to withstand rigorous outdoor, high-frequency, and high-voltage operating conditions.

5. High-end industrial power supplies: High-power industrial switching power supplies, high-voltage inverters, and precision voltage stabilizers; provides stable electrical performance for high-precision industrial power supply applications. IV. Summary of Product Value

YMIN’s MDR series high-voltage film capacitors address common industry pain points—such as performance degradation at high temperatures, insufficient capacitance, poor stability, and limited adaptability—through their rigorous industrial-grade quality, versatility across diverse operating conditions, and highly integrated, lightweight design. Capable of meeting both mass-deployment needs for standardized industrial equipment and requirements for high-end, customized power system solutions, these capacitors enable industrial power equipment to achieve high efficiency, superior stability, low maintenance, and extended operational life. They serve as a core, high-quality component for the upgrading and evolution of high-voltage industrial power systems.