LQR2V103MSEJBN

The LQR2V103MSEJBN is an aluminum electrolytic capacitor in a screw-terminal radial can designed for high-voltage bulk energy storage. It delivers 10,000 µF capacitance at a 350 V rating with a −25 °C to +85 °C operating range and is part of Nichicon's LQR series.

This part is targeted at power-electronics applications that require high-capacitance, high-voltage smoothing and energy recovery, including high-frequency regenerative circuits for AC servomotors, general inverters, equipment operating in fluctuating-voltage environments, and rectifier circuits for voltage doubler topologies.

Key Features

• Capacitance & Voltage — 10,000 µF (10 mF) nominal capacitance rated at 350 V, suitable for high-voltage bulk energy storage.
• Temperature Range — Rated for operation from −25 °C to +85 °C, accommodating typical industrial ambient conditions.
• Screw Terminal Mounting — Radial can with screw terminals for secure electrical and mechanical connections in panel or chassis installations.
• High Ripple Current Capability — Specified ripple current of 30.2 A at 120 Hz and 42.28 A at 10 kHz to support high-frequency and low-frequency ripple conditions.
• Endurance & Lifetime — Endurance specification: 5,000 hours at 85 °C with rated DC bias plus rated ripple current; designed to meet capacitance and leakage limits after endurance testing.
• Charge–Discharge Durability — Qualified for charge–discharge endurance (20 million cycles at ΔV = 0.3 × rated voltage, 3 Hz) with limits on capacitance change, tan δ, and leakage current.
• Leakage Current Limit — Leakage current after 5 minutes is limited to not more than 3√V (µA) or 5 mA, whichever is smaller (measured at 20 °C).
• Low-Temperature Impedance — Specified impedance ratio Z(−25 °C)/Z(+20 °C) = 8 to characterize low-temperature performance.
• RoHS Compliant — Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).
• Physical — Radial, can-style package with screw terminals; nominal footprint dimensions listed as L: 13 × D: 9 cm and sleeve marking in white on dark brown.

Typical Applications

• Industrial Drives & Servo Systems — Energy smoothing and regenerative-voltage handling in AC servomotor regenerative circuits.
• Power Inverters — Bulk DC link and ripple management for general inverter designs operating under fluctuating input voltages.
• Regenerative/Braking Circuits — High-frequency regenerative voltage buffering where frequent charge–discharge cycles occur.
• Voltage Doubler Rectifiers — Use in rectifier circuits employing voltage doubler topologies to stabilize high DC voltages.

Unique Advantages

• High Capacitance at High Voltage: 10,000 µF at 350 V provides substantial bulk energy storage for DC-link and smoothing applications.
• Sustained Ripple Performance: Specified ripple current at both 120 Hz and 10 kHz supports designs with mixed-frequency ripple conditions.
• Engineered Endurance: 5,000 hours at 85 °C under rated bias and ripple current plus charge–discharge endurance testing offer predictable aging characteristics for long-term designs.
• Screw-Terminal Robustness: Screw-terminal radial can package simplifies high-current connections and mechanical mounting in power electronics enclosures.
• Low-Temperature Behavior Characterized: Published impedance ratio at −25 °C gives designers data to size systems for colder operating conditions.
• Regulatory Compliance: RoHS compliance supports environmental and regulatory requirements for commercial and industrial equipment.

Why Choose LQR2V103MSEJBN?

LQR2V103MSEJBN is positioned for power-electronics designs that require high-voltage, high-capacitance bulk storage with validated endurance and ripple performance. The combination of screw-terminal packaging, characterized low-temperature impedance, and explicit endurance and charge–discharge qualifications makes it suitable for inverter, servo, and regenerative applications where predictable long-term behavior matters.

This Nichicon LQR-series part is appropriate for engineers specifying robust DC-link and regenerative energy storage components in industrial systems, offering verifiable electrical and environmental specifications to support system reliability and design validation.

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