As a global leader in power electronics components, TDK delivers industry-defining Power Capacitors—engineered for high-voltage stability, low energy loss, and long-term reliability in mission-critical power systems. Focused on DC link circuits, inverter filtering, and energy storage, these capacitors leverage advanced film (MKP/MKK) and dielectric technologies to meet the rigorous demands of renewable energy (photovoltaics, wind), industrial drives, railway, and automotive electrification. Backed by TDK’s decades of material science expertise, they ensure power quality and system efficiency across harsh operating environments.
Core Product Series of TDK Power Capacitors
TDK’s power capacitor lineup is tailored to high-power scenarios, with specialized series for DC link, renewable energy, and industrial applications—each optimized for voltage, current, and thermal performance:
DC Link Power Capacitors (MKP/MKK Series):The flagship series for DC link circuits, including cylindrical MKP (metalized polypropylene) and rectangular MKK variants. Key models like the B25695E series support rated DC voltages of 700V–1300V, operating temperatures up to +105°C, and current peaks of 15.8kA—with a service life of 120,000 hours (35% longer than standard capacitors) at 75°C. Low ESR (1.0mΩ–2.7mΩ) minimizes power dissipation, making it ideal for industrial drives, solar inverters, and railway converters. Aluminum cases with epoxy encapsulation ensure resistance to vibration and moisture.
ModCap™ Modular Power Capacitors:Compact, modular DC link solutions (MF/HF series) with ultra-low ESL (8nH–14nH) for high-frequency power conversion. Capacitance ranges from 335µF–3900µF (MF) and 660µF–1900µF (HF), with voltage ratings of 900V–2300V. Compliant with IEC 61071 and UL standards, and certified for EN 45545 HL3 R23 (flame/smoke resistance)—perfect for wind turbine inverters and industrial drive systems where space and EMI control are critical.
Renewable Energy-Specific Power Capacitors:Optimized for PV and wind inverters, with high ripple current capability (up to 110A at 70°C) and tolerance to harsh climatic conditions (THB-tested: 85°C/85% RH for 1000h). MKP DC standard series (B2562* series) covers 40µF–4000µF capacitance and 700V–2000V DC, while resin-lidded B2569* series extends voltage to 3000V—supporting high-power grid-connected renewable systems.
Automotive & Railway Power Capacitors:AEC-Q200 compliant variants for EV on-board chargers (OBC) and DC-DC converters, withstanding -40°C–150°C temperatures and vibration. Railway-grade capacitors (B2568* series) meet EN 50155 standards, suitable for train/subway DC link circuits—offering hermetic aluminum cases and 900V–3000V voltage ratings.
Key Features of TDK Power Capacitors
TDK’s power capacitors stand out for power system optimization, addressing critical pain points in high-voltage, high-current scenarios:
High Voltage & Current Tolerance: Rated DC voltages up to 3000V, peak current handling up to 15.8kA, and ripple current capability up to 110A—supporting large-scale power conversion in renewable energy and industrial drives.
Low Loss & High Efficiency: Ultra-low ESR (1.0mΩ–2.7mΩ) and ESL (8nH–20nH) minimize power dissipation, ensuring inverter efficiency up to 98% (critical for 光伏 /wind energy cost control).
Extreme Durability & Long Lifespan: Advanced dielectric materials (metalized polypropylene) and dry epoxy encapsulation enable service life up to 120,000 hours at 75°C, with resistance to moisture (IP-compliant), vibration (20g peak), and thermal cycling (-40°C–105°C).
Self-Healing & Overvoltage Protection: MKP film technology offers self-healing properties (automatically isolates dielectric defects), while 130% rated voltage tolerance (1 minute daily) prevents breakdown in unstable power grids.
Industry Compliance: Meets IEC 61071 (power capacitors), AEC-Q200 (automotive), EN 50155 (railway), and UL/cUL standards—ensuring compatibility with global industrial, renewable, and transportation regulations.
Application Fields
TDK Power Capacitors are the backbone of high-power systems across energy, industrial, and transportation sectors:
Renewable Energy: DC link circuits in 光伏 inverters (filtering AC ripple) and wind turbine converters (stabilizing grid output)—optimized for high humidity and temperature fluctuations.
Industrial Automation: Industrial drives (motor speed control), UPS systems, and frequency converters—where low ESR and high current handling ensure continuous operation of 24/7 manufacturing equipment.
Railway & Transportation: DC link circuits in trains, subways, and streetcars—railway-grade variants withstand shock (50g) and extreme temperatures, complying with EN 45545 flame/smoke standards.
Automotive Electrification: EV on-board chargers (OBC) and high-voltage DC-DC converters—automotive-grade capacitors support 48V–800V EV platforms, withstanding engine bay vibration and heat.
Grid & Utility: Large-scale energy storage systems and power distribution inverters—high-voltage variants (3000V DC) stabilize grid voltage and reduce harmonic distortion.
Source Genuine TDK Power Capacitors via Authorized Distributors
To guarantee product authenticity, high-voltage performance, and reliable supply chains, sourcing genuine TDK Power Capacitors from official authorized distributors is critical. At ecparts.cc, we’ve rigorously vetted a network of trusted TDK-authorized distributors—each with expertise in power electronics, proven inventory of DC link/renewable energy capacitors, and formal authorization to supply TDK’s industrial-grade components.
Whether you’re procuring B25695E DC link capacitors for solar inverters, ModCap™ HF series for wind turbines, or railway-grade capacitors for trains, our platform simplifies your procurement journey:
Browse our TDK Authorized Distributors Directory to find regional suppliers tailored to your location (e.g., Europe, USA, Asia).
Access direct contact details, distributor websites, and real-time inventory of TDK power capacitors (e.g., MKP DC series, ModCap™ variants) for instant inquiries and sample requests.
Verify authorization status to avoid counterfeit components—fake power capacitors risk overheating, voltage breakdown, and catastrophic system failure.
For TDK-authorized distributors looking to expand their reach to global buyers, submit your website to be listed on ecparts.cc and connect with high-intent procurement leads (e.g., renewable energy project developers, industrial drive manufacturers).
Stay tuned to our news section for the latest updates on TDK’s power capacitor innovations—including new high-voltage series and renewable energy application cases!
