LQR2V182MSEFBN

The LQR2V182MSEFBN is an aluminum electrolytic capacitor in a screw-terminal radial can designed for high-speed charge–discharge applications. It is a polarized, 1.8 mF capacitor rated for 350 V and built to operate across a -25 °C to 85 °C temperature range.

Engineered for power-electronics environments, this Nichicon LQR-series part is suited to high-frequency regenerative voltage on AC servomotors, general inverters, rectifier circuits such as voltage doublers, and equipment subject to fluctuating supply voltages. The component is RoHS compliant.

Key Features

• Capacitance & Voltage — 1.8 mF capacitance with a 350 V rated voltage and ±20% tolerance for bulk energy storage in power stages.
• Screw Terminal Mounting — Radial can with screw terminals for secure, low-resistance high-current connections in power assemblies.
• High-speed Charge–Discharge — Designed for 85 °C high-speed charge–discharge operation and endurance in pulsating or regenerative circuits.
• Ripple Current Capability — Capable of 7.2 A at 120 Hz and 10.08 A at 10 kHz, supporting both low- and high-frequency ripple environments.
• Thermal and Endurance Ratings — Rated for operation from -25 °C to 85 °C with a specified lifetime of 5000 hours at 85 °C; series endurance includes charge–discharge testing for 20 million cycles (ΔV = rated × 0.3, 3 Hz).
• Physical & Polarization — Polarized device in a radial can; package dimensions L: 8 × D: 5.1 cm and maximum seated height of 3.15 inch for mechanical planning.
• Regulatory — Compliant to the RoHS Directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial motor drives — Energy buffering and regenerative voltage handling for AC servomotor systems and servo inverters.
• Inverters and power converters — Bulk smoothing and ripple management in general inverter and power-conversion stages.
• Rectifier/voltage-doubler circuits — Suitable for rectifier sections where voltage-doubler configurations require robust DC storage.
• Equipment operating under fluctuating supply — Providing stability and energy reserve where input voltage varies or experiences transients.

Unique Advantages

• High ripple handling across frequencies — Specified ripple currents at 120 Hz and 10 kHz enable use in both mains-frequency and high-frequency regenerative circuits.
• Designed for rapid charge–discharge cycling — Series-level endurance validated to 20 million charge–discharge cycles supports long-term operation in pulsed power applications.
• Elevated thermal endurance — 5000 hours rated life at 85 °C provides predictable aging characteristics for industrial power designs.
• Secure screw-terminal connections — Mechanical robustness and reliable electrical contact for high-current installations and field serviceability.
• Low-temperature impedance stability — Series specification limits impedance increase at -25 °C (Z(-25 °C)/Z(+20 °C) ≤ 8), aiding performance in varied ambient conditions.

Why Choose LQR2V182MSEFBN?

The LQR2V182MSEFBN delivers a combination of high-voltage energy capacity, robust ripple-handling, and screw-terminal mounting tailored for demanding power-electronics applications. Its endurance ratings and charge–discharge behavior make it a practical choice where regenerative currents and voltage fluctuations are routine.

Manufactured by Nichicon and compliant with RoHS, this part is appropriate for designers of industrial motor drives, inverters, and power-conversion equipment who require a reliable, serviceable capacitor with defined lifetime and ripple specifications.

Request a quote or contact our sales team to discuss pricing, availability, and technical details for integrating the LQR2V182MSEFBN into your design.