LQR2G123MSEJBN

The LQR2G123MSEJBN is a screw-terminal aluminum electrolytic capacitor from Nichicon's LQR series, rated 12,000 µF (12 mF) at 400 V. Engineered for high-speed charge–discharge and high-frequency regenerative voltages, it is targeted at inverter and motor drive systems where robust energy buffering and high ripple capability are required.

Key characteristics include screw-terminal construction for secure power connections, an operating temperature range of −25 °C to +85 °C, and a rated lifetime of 5,000 hours at 85 °C—making it suitable for equipment exposed to fluctuating voltages and repetitive charge–discharge cycles.

Key Features

• High Capacitance & Voltage: 12,000 µF capacitance at a 400 V rated voltage provides substantial energy storage for DC link and smoothing applications.
• Screw Terminal Package: Radial can with screw terminals offers reliable, low-resistance power connections suitable for high-current applications.
• High Ripple Current Capability: Rated ripple current of 37.6 A at 120 Hz and 52.64 A at 10 kHz supports both low- and high-frequency smoothing demands.
• Wide Operating Temperature: Specified for −25 °C to +85 °C operation, with endurance testing at 85 °C for 5,000 hours.
• High-Speed Charge–Discharge Endurance: Designed for repetitive charge–discharge behavior; series endurance tests include 20 million cycles (ΔV = rated × 0.3, 3 Hz) with preserved electrical characteristics.
• Leakage Current Specification: After 5 minutes at rated voltage, leakage current is limited to no more than 3√(√V) µA or 5 mA, whichever is smaller (measured at 20 °C).
• RoHS Compliant: Meets RoHS directive (2011/65/EU, (EU)2015/863).
• Physical Dimensions & Marking: Size listed as L: 17 × D: 9 cm; sleeve marked with white lettering on dark-brown sleeve for clear polarity and identification.

Typical Applications

• AC Servomotor Drives: Energy buffering for regenerative braking and fast charge–discharge cycles in servo systems.
• Inverters and Motor Controllers: DC link and smoothing capacitor for general inverters handling fluctuating supply voltages.
• Voltage Doubler and Rectifier Circuits: Suitable for use in rectifier stages and voltage-doubler topologies requiring high-voltage capacitance.
• Equipment in Voltage-Fluctuating Environments: Intended for systems where supply transients and variable voltages demand robust energy storage and durability.

Unique Advantages

• Substantial Energy Storage: 12,000 µF at 400 V supports longer hold-up and improved DC-link stability in power conversion systems.
• High Ripple Handling: Specified ripple currents at both 120 Hz and 10 kHz enable use across a range of switching frequencies without compromising performance.
• Secure Power Connections: Screw-terminal construction simplifies high-current wiring and mechanical retention for industrial applications.
• Proven Endurance: 5,000-hour endurance at 85 °C and validated charge–discharge cycle testing (20 million cycles at specified conditions) indicate durability under repetitive stress.
• Regulatory Compliance: RoHS compliance supports deployment in markets requiring restricted-substance conformity.
• Clear Identification: White marking on a dark-brown sleeve ensures polarity and part identification are easy to verify during assembly and maintenance.

Why Choose LQR2G123MSEJBN?

The LQR2G123MSEJBN combines large capacitance and high voltage rating with a screw-terminal industrial package designed for demanding power-electronics applications. Its specified ripple current ratings and endurance testing make it a practical choice for inverter, motor-drive, and rectifier circuits where regenerative energy and frequent charge–discharge events occur.

This capacitor is suited for engineers and buyers designing robust power systems that require durable energy storage, reliable terminal connections, and clear part identification—backed by Nichicon's LQR series specifications and RoHS compliance.

If you would like pricing or availability, request a quote or contact sales to submit an inquiry for the LQR2G123MSEJBN.