LQR2W103MSEJBN

The Nichicon LQR2W103MSEJBN is a screw-terminal aluminum electrolytic capacitor offering 10,000 µF capacitance at a rated voltage of 450 V. It combines high capacitance and high-voltage capability in a radial can with screw terminals for secure, high-current connections.

Designed for power electronics environments, the LQR series is suited for high-frequency regenerative voltage and inverter applications where high ripple current handling, long-term endurance and stable operation from −25 °C to +85 °C are required.

Key Features

• High capacitance and voltage: 10,000 µF nominal capacitance at 450 V, with a capacitance tolerance of −20% to +20% (measured at 120 Hz, 20 °C).
• High ripple current capability: Rated ripple current 31.3 A at 120 Hz (low frequency) and 43.82 A at 100 kHz (high frequency), supporting demanding DC bus and pulse applications.
• Durability and endurance: 5,000 hours rated life at 85 °C; proven charge–discharge endurance with 20 million cycles (ΔV = rated voltage × 0.3, 3 Hz) per the series specification.
• Temperature performance: Operating temperature range −25 °C to +85 °C with low-temperature impedance stability (Z(−25 °C)/Z(+20 °C) up to 8).
• Robust leakage specification: Leakage current after 5 minutes is limited to 3√(√V) µA or 5 mA, whichever is smaller (at 20 °C), for predictable power-loss behavior.
• Screw-terminal radial can package: φ90 × 190 L form factor (L: 19 × D: 9 cm) with M5 nominal bolt terminal dimensions for secure mechanical and electrical connections.
• Regulatory compliance: RoHS compliant as noted in the product data.

Typical Applications

• AC servo drives: Energy-regeneration smoothing and DC-link buffering in servo systems exposed to high-frequency regenerative voltages.
• Inverters and motor drives: DC bus stabilization and transient energy storage for general inverter and motor-control converters.
• Voltage-doubler rectifier circuits: Bulk energy storage and smoothing in rectifier and voltage-doubler topologies.
• Power equipment in fluctuating-voltage environments: Systems that experience wide supply variation benefit from the capacitor’s high-voltage rating and endurance.

Unique Advantages

• High energy density at elevated voltage: 10,000 µF at 450 V provides substantial bulk energy storage for DC-link applications without parallel capacitor arrays.
• High ripple-current tolerance: Rated values at both low and high frequencies support designs with significant AC ripple or high-frequency switching components.
• Long rated life at elevated temperature: 5,000 hours at 85 °C supports sustained operation in thermally demanding installations.
• Charge–discharge robustness: Endurance validated for 20 million charge–discharge cycles, helping ensure reliable performance in repeated transient conditions.
• Screw-terminal mounting: Secure, low-resistance connections suited for high-current applications and straightforward installation.
• Clear electrical limits: Defined leakage-current and impedance characteristics enable predictable thermal and loss budgeting in power designs.

Why Choose LQR2W103MSEJBN?

The LQR2W103MSEJBN positions itself as a high-capacitance, high-voltage solution for power-electronics designs that demand reliable DC-link energy storage, strong ripple-current handling and endurance under repeated charge–discharge conditions. Its screw-terminal radial can package and defined electrical characteristics simplify integration into inverter, servo and rectifier systems.

This part is suited for engineers and procurement teams building systems exposed to high-frequency regenerative energy or fluctuating supply voltages who need long-term performance, predictable leakage and robust mechanical connections. RoHS compliance and series-proven endurance add to its suitability for sustained production use.

If you would like a quote or more information on integrating the LQR2W103MSEJBN into your design, please request a quote or contact sales to discuss specifications, availability and ordering details.