LQR2W103MSEJ

The LQR2W103MSEJ is a screw‑terminal aluminum electrolytic capacitor from Nichicon’s LQR series, designed for high‑speed charge/discharge duty. With a 10,000 µF capacitance at 450 V rated voltage and an 85°C category temperature, it addresses energy storage and smoothing needs in power electronics.

This part is suited for high‑frequency regenerative voltages and fluctuating supply environments such as AC servomotor drives, general inverters, and rectifier circuits using voltage doubler arrangements. It is RoHS‑compliant and supplied in a radial can with screw terminals for robust mechanical and electrical connections.

Key Features

• Capacitance & Voltage — 10,000 µF (10 mF) rated capacitance at 450 V for bulk energy storage and DC link smoothing.
• Screw Terminal Package — Radial can with screw terminals and M5‑class terminal hardware compatibility for secure, high‑current connections.
• High‑Speed Charge/Discharge — Engineered for repeated charge/discharge cycles; datasheet specifies endurance for 20 million cycles (ΔV = rated voltage × 0.3, 3 Hz) at room temperature.
• Temperature Range & Endurance — Operating range −25°C to +85°C with a rated endurance of 5000 hours at 85°C under D.C. bias plus rated ripple current; capacitance remains within ±20% after endurance test.
• Ripple Current Performance — Specified ripple current: 31.3 A at 120 Hz and 43.82 A at 10 kHz, supporting both low‑ and high‑frequency applications.
• Reliability Metrics — Capacitance tolerance ±20% (at 120 Hz, 20°C); tan δ and leakage current stability defined for endurance conditions per the datasheet.
• Compliance — RoHS directive compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• Servo and Motion Control — Energy buffering and regenerative voltage handling for AC servomotor drives where rapid charge/discharge is required.
• Inverters and Drives — DC link smoothing and transient absorption in general inverters and motor drive systems operating with fluctuating supply voltages.
• Rectifier / Voltage Doubler Circuits — Bulk storage and smoothing in rectifier stages, including voltage doubler configurations.
• Industrial Power Electronics — Applications requiring high ripple current capability and long endurance at elevated temperatures (up to 85°C).

Unique Advantages

• High energy density at elevated voltage — 10,000 µF at 450 V provides substantial bulk storage for DC link and smoothing tasks.
• Designed for repeated cycling — Specified 20 million charge/discharge cycles at room temperature, supporting applications with frequent energy flow reversals.
• Robust ripple handling — Distinct ripple current ratings at 120 Hz and 10 kHz enable designers to size the capacitor to specific frequency loads.
• Long endurance at operating temperature — 5000 hours at 85°C under rated conditions with controlled limits on capacitance, tan δ and leakage current for predictable life performance.
• Secure electrical and mechanical connection — Screw‑terminal radial can package simplifies high‑current wiring and mounting in industrial equipment.
• Regulatory conformity — RoHS compliance supports use in regions requiring restricted‑substance adherence.

Why Choose LQR2W103MSEJ?

LQR2W103MSEJ positions itself as a durable, high‑voltage energy storage element for power electronics where rapid charge/discharge, high ripple currents, and long‑term endurance at elevated temperatures are required. Its screw‑terminal design and measured electrical characteristics make it appropriate for industrial inverter, motor drive, and rectifier subsystems that face fluctuating voltages and frequent regenerative events.

Choose this part when you need verifiable endurance metrics, clear ripple‑current ratings at both line and high frequencies, and RoHS conformity for compliant production. The LQR series’ documented test limits for capacitance, tan δ and leakage after endurance and cycling provide predictable behavior for system design and maintenance planning.

Request a quote or submit a specification inquiry to receive pricing and availability information for LQR2W103MSEJ tailored to your project requirements.