MDR

With the rapid development of the new energy vehicle industry, efficient and reliable electronic components are key drivers of technological innovation. YMIN's MDR series metallized polypropylene film capacitors are high-performance solutions developed specifically for the power systems of new energy vehicles, providing stable and efficient energy control for electric and hybrid vehicles.

Product Series Overview

The YMIN MDR series includes three capacitor products designed specifically for different vehicle types: dual-motor hybrid vehicle bus capacitors, passenger vehicle bus capacitors, and commercial vehicle bus capacitors. Each product is carefully optimized based on the electrical requirements and space constraints of specific application scenarios, ensuring superior performance under various operating conditions.

Core Technology Features

Excellent Electrical Performance

The MDR series capacitors utilize metallized polypropylene film technology, resulting in low equivalent series resistance (ESR) and low equivalent series inductance (ESL). The dual-motor hybrid capacitors offer an ESR of ≤0.4mΩ, while the commercial vehicle version achieves an exceptionally low ESR of ≤0.3mΩ. This low internal resistance significantly reduces energy loss and improves overall system efficiency.

Strong Current Handling Capacity

This series of products boasts impressive current-carrying capabilities. Commercial vehicle capacitors can withstand maximum repetitive pulse currents of up to 7500A (duration ≤ 10μs) and a maximum pulse current of 15,000A (30ms per pulse). This high current handling capability ensures stable operation under high-power conditions such as acceleration and hill climbing.

Stable Temperature Performance

The MDR series capacitors are designed to operate over a wide temperature range of -40°C to +105°C, suitable for the harsh environments encountered by vehicle electronic systems. They feature an epoxy resin encapsulated dry-type design, providing excellent protection against moisture, dust, and mechanical damage.

Safety and Reliability

These products comply with AEC-Q200D Automotive Electronics Council standards and are UL94-V0 flame-retardant certified. Insulation resistance (C×Ris) of ≥10,000s ensures electrical safety during long-term use.

Practical Application Value

New Energy Vehicle Power Systems

In electric and hybrid vehicles, MDR capacitors are primarily used in DC-Link filter circuits to smooth the DC bus voltage in the motor drive system, reducing voltage fluctuations and electromagnetic interference. This is crucial for improving vehicle energy efficiency and extending driving range.

Improving System Efficiency

The low ESR characteristic significantly reduces heat generation during energy conversion, reducing the burden on the cooling system. Furthermore, the high ripple current capability ensures efficient operation of power electronic converters such as inverters and DC-DC converters.

Space-Optimized Design

To address the limited installation space in vehicles, the MDR series products feature a compact design. Passenger vehicle capacitors measure only 246.2 × 75 × 68 mm, providing maximum capacitance density within a limited space.

Long Life and Low Maintenance

A service life of ≥100,000 hours ensures compatibility with the vehicle's overall lifespan, reducing maintenance requirements and lifecycle costs. A failure rate of ≤100 FIT ensures extremely high reliability.

Expanding Industry Applications

Beyond the new energy vehicle sector, the technical characteristics of the YMIN MDR series capacitors make them suitable for a variety of industrial scenarios:

Renewable Energy Systems

In solar inverters and wind power generation systems, these capacitors can be used for DC bus support, smoothing the fluctuating power output of renewable energy and improving grid access quality.

Industrial Drive Systems

Suitable for variable frequency drives, servo control systems, and other high-power industrial motor drive applications, providing stable DC link filtering.

Power Quality Improvement

They can be used in power quality improvement equipment such as reactive power compensation and harmonic filtering to enhance the stability and efficiency of industrial power grids.

Technical Advantages Summary

YMIN MDR series metallized polypropylene film capacitors, with their excellent electrical performance, rugged mechanical design, and wide environmental adaptability, provide reliable energy control solutions for modern power electronics systems. These products not only meet the technical requirements of current new energy vehicles but also prepare for future higher voltage and higher power vehicle platforms.

As core components in new energy vehicle power systems, the YMIN MDR series capacitors create significant value for vehicle manufacturers and value chain partners by improving energy efficiency, enhancing reliability, and optimizing space utilization. As global vehicle electrification accelerates, these high-performance capacitors will play an increasingly important role in achieving carbon neutrality in the transportation sector.

Leveraging its extensive technical expertise and commitment to continuous innovation, YMIN continuously optimizes product performance, providing customers with capacitor solutions that meet the most stringent automotive electronics standards, and helping the global new energy vehicle industry move towards a more efficient and reliable future.