LQR2W103MSEJBB

The LQR2W103MSEJBB is a screw-terminal aluminum electrolytic capacitor designed for high-speed charge–discharge applications. This 10 mF (10,000 µF), 450 V polarized capacitor is built for power electronics where robust energy storage and rapid transient handling are required.

Engineered for industrial power systems, the LQR series targets applications such as AC servomotor regenerative circuits, general inverters, rectifier circuits including voltage doublers, and equipment operating in fluctuating-voltage environments. It is RoHS compliant and optimized for high-frequency regenerative voltages.

Key Features

• Capacitance & Voltage — 10 mF (10,000 µF) rated at 450 V for bulk energy storage in high-voltage power stages.
• High-speed charge–discharge — Designed for fast charge and discharge cycles; endurance validated for 20 million cycles at room temperature (ΔV = rated voltage × 0.3, 3 Hz).
• High ripple-current capability — Rated ripple current of 31.3 A at 120 Hz and 43.82 A at 10 kHz, supporting both low- and high-frequency ripple in inverters and regenerative circuits.
• Thermal and operational range — Operates from −25 °C to +85 °C with a guaranteed endurance of 5000 hours at 85 °C under rated DC bias plus rated ripple current.
• Robust mounting — Screw terminal, radial can package simplifies high-current connections and mechanical installation in power racks and modules.
• Reliability metrics — Leakage current specification after 5 minutes does not exceed 3√V µA or 5 mA (whichever is smaller); endurance and shelf-life characteristics defined to preserve performance after long service or storage.
• Packaging & sizing — Radial can with screw terminals; size listed as L: 19 × D: 9 cm and marked with white print on a dark-brown sleeve for clear identification.
• RoHS compliant — Meets RoHS Directive (2011/65/EU, (EU)2015/863) requirements for restricted substances.

Typical Applications

• Industrial Motor Drives — Energy buffering and regenerative-voltage handling for AC servomotors and servo amplifiers, enabling reliable braking and energy recovery.
• Inverters and Power Conversion — Bulk DC-link and smoothing capacitor for general inverters where high ripple current and fast discharge are required.
• Rectifier / Voltage Doubler Circuits — Suited for rectifier stages and voltage-doubling topologies that demand large capacitance at high DC voltage.
• Equipment in Fluctuating-Voltage Environments — Stabilizes DC rails and absorbs transients in equipment exposed to varying mains or regenerative events.

Unique Advantages

• High-voltage energy storage: 450 V rating with 10 mF capacitance provides substantial stored energy for DC-link and regenerative functions.
• Designed for repeated fast cycling: Endurance validated for 20 million charge–discharge cycles, reducing the need for frequent replacements in cyclic applications.
• Wide ripple-current bandwidth: Specified ripple current at both 120 Hz and 10 kHz supports low- and high-frequency power electronics designs.
• Durability under heat: 5000 hours endurance at 85 °C with maintained capacitance, tan δ and leakage performance for long-term reliability in industrial environments.
• Screw-terminal convenience: Secure, low-impedance connections simplify integration into power cabinets and allow reliable high-current terminations.
• Regulatory compliance: RoHS compliance supports environmentally conscious design and regulatory alignment.

Why Choose LQR2W103MSEJBB?

The LQR2W103MSEJBB combines a high 450 V rating with large capacitance and proven charge–discharge endurance to meet the needs of demanding power-electronics systems. Its screw-terminal construction and high ripple-current capability make it suitable for industrial drives, inverters, and rectifier applications where fast energy transfer and long-term reliability matter.

This part is suited to designers and OEMs specifying components for high-frequency regenerative circuits and equipment exposed to voltage fluctuations, offering verifiable endurance, thermal performance, and environmental compliance for long service life.

Request a quote or submit a specification inquiry to receive pricing, availability, and application support for the LQR2W103MSEJBB.