LQR2V182MSEFBB

The LQR2V182MSEFBB from Nichicon is a screw‑terminal aluminum electrolytic capacitor rated 1.8 mF (1800 µF) at 350 V with an operating temperature range of −25°C to +85°C. Built for high‑speed charge‑discharge and high‑frequency regenerative environments, it addresses energy buffering and smoothing needs in power conversion equipment.

Typical use cases include regenerative voltage handling for AC servomotors, general inverters, rectifier circuits such as voltage doublers, and equipment operating in areas with fluctuating supply voltages. The part combines high voltage capability, screw‑terminal mounting, and long endurance characteristics for reliable power applications.

Key Features

• Capacitance & Voltage: 1.8 mF (1800 µF) nominal capacitance at a rated voltage of 350 V for bulk energy storage in high‑voltage power circuits.
• Screw‑Terminal Mounting: Radial can with screw terminals provides secure, low‑resistance connections for high current and field serviceability.
• Operating Temperature Range: −25°C to +85°C to support operation across a wide range of industrial environments.
• Endurance: Designed to meet endurance requirements after 5000 hours at 85°C with D.C. bias plus rated ripple current; capacitance change within ±20%, tan δ within specified limits, and leakage current maintained.
• Charge‑Discharge Durability: Validated for charge‑discharge behavior up to 20 million cycles (ΔV = rated voltage × 0.3, 3 Hz) at room temperature with maintained electrical characteristics and no remarkable appearance abnormalities.
• Ripple Current Capability: Rated ripple current handling of 7.2 A at 120 Hz and 10.08 A at 10 kHz to support both low‑frequency and high‑frequency power conditioning.
• Leakage Current Specification: After 5 minutes' application of rated voltage, leakage current is specified as not more than "3√(√V) μA or 5 mA, whichever is smaller" (at 20°C) per the datasheet.
• Package Dimensions: Radial can, screw terminals, physical size L: 8.0 cm × D: 5.1 cm suitable for chassis‑mounted power assemblies.
• Environmental Compliance: RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• AC Servomotor Regeneration: Energy capture and smoothing in regenerative braking and active energy return circuits where high‑frequency charge/discharge is required.
• General Inverters: Bulk DC link and voltage stabilization in inverter front ends handling fluctuating input voltages.
• Rectifier / Voltage Doubler Circuits: DC smoothing and charge storage for rectifier stages including voltage doubler topologies.
• Industrial Power Equipment: Robust energy buffering for machinery and equipment located in areas with unstable grid conditions.

Unique Advantages

• High‑Voltage Energy Storage: 1.8 mF at 350 V delivers substantial bulk capacitance for DC link and regenerative energy applications.
• Secure, Field‑Friendly Terminals: Screw‑terminal radial can simplifies installation and maintenance while ensuring reliable electrical connections under high current.
• Designed for High‑Frequency Use: Specified ripple current at both 120 Hz and 10 kHz supports performance in both low‑ and high‑frequency power conditioning scenarios.
• Proven Endurance: Endurance qualification of 5000 hours at 85°C under DC bias plus rated ripple current provides measurable lifetime expectations for system planning.
• Cycle Durability: Rated for 20 million charge‑discharge cycles at defined ΔV and frequency, helping ensure long operational service in repeatedly switching environments.
• RoHS Compliant: Meets current RoHS directive requirements for restricted substances.

Why Choose LQR2V182MSEFBB?

The LQR2V182MSEFBB is positioned for power engineers who need a robust, high‑voltage electrolytic capacitor with screw‑terminal mounting, high ripple capability, and validated endurance for regenerative and inverter applications. Its combination of 1.8 mF capacitance at 350 V, charge‑discharge durability, and long endurance at 85°C makes it well suited to industrial power systems that demand reliable energy buffering and frequent cycling.

Choose this Nichicon LQR part when your design requires measurable lifetime characteristics, secure terminal connections for high current, and compliance with RoHS directives for regulated environments.

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