LQR2V103MSEJBB

The LQR2V103MSEJBB is a screw-terminal aluminum electrolytic capacitor from Nichicon’s LQR series, specified at 10,000 µF and 350 V. It is designed for high-speed charge–discharge and applications where regenerative or fluctuating voltages occur.

Typical use cases include high-frequency regenerative circuits for AC servomotors, general inverters, and rectifier circuits such as voltage doublers. The part combines high capacitance and rated voltage with screw-terminal mounting for robust electrical connections in industrial power systems.

Key Features

• Capacitance & Rated Voltage — 10,000 µF capacitance rated at 350 V, with a capacitance tolerance of −20% to +20%.
• Screw Terminal Package — Radial can with screw terminals and M5 bolt accommodation for secure, high-current connections.
• High-Speed Charge–Discharge Design — Engineered for high-frequency regenerative voltages and charge–discharge endurance testing (20 million cycles at ΔV = rated × 0.3, 3 Hz).
• Ripple Current Performance — Rated ripple current of 30.2 A at 120 Hz and 42.28 A at 10 kHz, supporting heavy ripple applications.
• Thermal and Lifetime Ratings — Operates from −25°C to +85°C with a rated endurance of 5,000 hours at 85°C under D.C. bias plus rated ripple current.
• Polarized — Polar capacitor construction for DC and rectifier applications such as voltage doublers.
• RoHS Compliant — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).
• Physical Footprint — φ90 × 130 mm can (L: 13 × D: 9 cm) for high-capacitance, high-voltage installations.

Typical Applications

• AC Servomotor Regenerative Circuits — Handles high-frequency regenerative voltages encountered in motor drive energy recovery.
• General Inverters — Provides bulk energy storage and ripple handling for inverter DC-link and smoothing functions.
• Voltage Doubler Rectifiers — Suited for rectifier circuits using the voltage-doubler topology where high DC voltage and capacitance are required.
• Equipment in Voltage-Fluctuating Areas — Designed to tolerate fluctuating supply conditions while maintaining capacitance and leakage stability.

Unique Advantages

• High energy storage at elevated voltage — 10,000 µF at 350 V provides substantial DC-link capacitance for power conversion systems.
• Designed for frequent charge–discharge cycling — Endurance verified by charge–discharge testing (20 million cycles) and 5,000 hours at 85°C under rated conditions.
• Robust ripple-current capability — High ripple current ratings at both 120 Hz and 10 kHz reduce thermal stress in high-frequency and low-frequency regimes.
• Secure mechanical and electrical connections — Screw-terminal, radial can construction with M5 bolt sizing simplifies installation and ensures reliable fastening.
• Wide operating temperature range — −25°C to +85°C operation supports a range of industrial environments.
• Regulatory compliance — RoHS conformity for markets requiring restricted-substance compliance.

Why Choose LQR2V103MSEJBB?

The LQR2V103MSEJBB positions itself as a high-capacitance, high-voltage solution for industrial power electronics where regenerative energy, voltage fluctuation, and frequent charge–discharge cycles are common. Its combination of 10,000 µF at 350 V, robust ripple-current ratings, and screw-terminal mounting makes it suitable for designers specifying reliable DC-link and energy-absorption capacitors.

Engineers building inverter systems, motor drives, or rectifier topologies will find a durable option in the Nichicon LQR series with defined endurance and thermal ratings, and RoHS compliance for regulated applications.

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