LQR2V682MSEJ

The LQR2V682MSEJ is a screw-terminal aluminum electrolytic capacitor from Nichicon's LQR series, rated at 6.8 mF (6800 µF) and 350 V. It is a polarized, radial can-style capacitor engineered for high-speed charge–discharge and applications subject to voltage fluctuations.

Designed for power electronics, the LQR2V682MSEJ targets inverter and motor-drive environments where high-frequency regenerative voltages and robust ripple handling are required. It is RoHS compliant (2011/65/EU, (EU)2015/863).

Key Features

• High Capacitance, High Voltage — 6.8 mF (6800 µF) nominal capacitance at a rated voltage of 350 V, suitable for bulk energy storage in power circuits.
• Screw Terminal Mounting — Radial can package with screw terminals for secure, low-impedance connections in heavy-current power assemblies.
• High Ripple Current Capability — Rated ripple current of 22.5 A at 120 Hz and 31.5 A at 10 kHz, supporting high-frequency and low-frequency ripple environments.
• Wide Operating Temperature Range — Specified for operation from −25 °C to +85 °C to accommodate many industrial and power-electronics ambient conditions.
• Endurance and Charge–Discharge Durability — Endurance specified as 5000 hours at 85 °C under DC bias plus rated ripple; charge–discharge endurance validated to 20 million cycles (ΔV = 0.3 × rated voltage, 3 Hz) at room temperature.
• Polarity and Tolerance — Polarized component with capacitance tolerance of −20% to +20% at 120 Hz, 20 °C.
• Leakage Current Specification — After 5 minutes at rated voltage, leakage current is limited by the datasheet formula (not more than 3√(√V) μA or 5 mA, whichever is smaller, at 20 °C).
• Form Factor — Package dimensions L: 10 cm × D: 9 cm and radial can with screw terminals for robust mechanical and electrical integration.

Typical Applications

• AC Servo and Motor Drives — Handles high-frequency regenerative voltages encountered in AC servomotor drive systems and motor control inverters.
• General Inverters — Bulk energy storage and ripple smoothing in inverter DC-link circuits, especially where voltage can fluctuate.
• Voltage Doubler Rectifier Circuits — Suited for rectifier circuits that use voltage-doubler arrangements requiring large capacitance and high voltage rating.
• Industrial Power Supplies — Provides energy buffering and ripple management in industrial power electronics subject to frequent charge–discharge cycles.

Unique Advantages

• High energy density at 350 V: 6.8 mF capacitance at a 350 V rating supports substantial DC-link energy storage in compact radial-can form.
• Robust ripple handling: Separate ripple ratings at 120 Hz and 10 kHz allow designers to quantify performance for both low- and high-frequency noise environments.
• Proven endurance under stress: 5000 hours at 85 °C under rated conditions and validated charge–discharge endurance provide design confidence for long-term operation.
• Screw-terminal connectivity: Facilitates secure, low-impedance installation for high-current power paths and straightforward serviceability.
• RoHS compliant: Meets RoHS (2011/65/EU, (EU)2015/863) requirements for regulatory compliance in many markets.

Why Choose LQR2V682MSEJ?

The LQR2V682MSEJ combines high capacitance and a 350 V rating with screw-terminal robustness and defined ripple performance to serve demanding power-electronics roles. Its endurance and charge–discharge qualifications make it suitable for designs that require repeated energy cycling and long-term stability at elevated temperatures.

This capacitor is ideal for engineers specifying DC-link, regenerative braking, or voltage-doubler rectifier circuits in industrial inverter and motor-control systems where verified ripple capability, mechanical reliability, and regulatory compliance are required.

Request a quote or submit an inquiry to receive pricing and availability information for LQR2V682MSEJ and to discuss suitability for your specific application.