LQR2W222MSEF

The LQR2W222MSEF is a screw‑terminal aluminum electrolytic capacitor from Nichicon's LQR series designed for high‑speed charge–discharge applications. It provides 2.2 mF (2200 µF) capacitance at a 450 V rating and is optimized for use in power electronics where voltage fluctuates rapidly.

Typical use cases include high‑frequency regenerative voltage handling for AC servomotors, general inverters, and rectifier circuits such as voltage doublers. The part delivers robust endurance at elevated temperature and is RoHS‑compliant.

Key Features

• Capacitance & Voltage — 2.2 mF (2200 µF) nominal capacitance with a 450 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• Screw‑Terminal Package — Radial can with screw terminals for secure mechanical and electrical connections; designed for screw‑terminal mounting in power assemblies.
• High‑Speed Charge/Discharge — Engineered for high‑frequency regenerative voltage and charge–discharge cycling; specified charge–discharge endurance of 20 million cycles at ΔV = rated × 0.3 (3 Hz) at room temperature.
• Temperature & Lifetime — Rated for -25°C to +85°C operation with a 5000 hour endurance at 85°C under DC bias plus rated ripple current.
• Ripple Current Performance — Specified ripple current of 8.7 A at 120 Hz and 12.18 A at 10 kHz to support inverter and motor drive filtering requirements.
• Electrical Reliability — Leakage current specified as not more than 3√V (µA) or 5 mA (whichever is smaller) after 5 minutes at 20°C; tan δ and impedance stability limits provided for endurance and low‑temperature performance.
• Physical Dimensions — Body dimensions L: 13 cm × D: 5.1 cm (φ51), with terminal bolt nominal diameter M5 for mounting.
• Regulatory — Compliant with the RoHS Directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC Servomotor Drives — Handles high‑frequency regenerative voltages and rapid charge–discharge cycles encountered in servo systems.
• General Inverters — Provides bulk energy storage and ripple filtering for inverter DC buses in industrial power electronics.
• Voltage Doubler / Rectifier Circuits — Suitable for rectifier and voltage doubler topologies where stable capacitance under fluctuating voltage is required.
• Equipment in Variable‑Voltage Environments — Designed for systems exposed to frequent voltage fluctuations, offering endurance and defined leakage and impedance behavior.

Unique Advantages

• High Energy Density at Elevated Voltage: 2.2 mF at 450 V provides substantial DC bus capacitance for inverter and regenerative circuits, reducing the need for multiple smaller capacitors.
• Screw‑Terminal Robustness: Screw terminals and M5 nominal bolt compatibility enable secure connections and reliable mounting in heavy‑current applications.
• Designed for Repetitive Cycling: Endurance specifications include 20 million charge–discharge cycles (ΔV = 0.3 × rated) and 5000 hours at 85°C under DC bias plus ripple current, supporting long service life in demanding duty cycles.
• Frequency‑oriented Ripple Handling: Specified ripple current at both 120 Hz and 10 kHz supports bulk filtering across low and high ripple frequency components common in power converters.
• Clear Reliability Metrics: Defined limits for leakage current, tan δ, impedance ratio at low temperature, and endurance make performance predictable for engineering verification.
• RoHS Compliance: Conforms to RoHS directives, simplifying environmental compliance for product builds.

Why Choose LQR2W222MSEF?

The LQR2W222MSEF is positioned as a durable, high‑voltage electrolytic capacitor for power electronics applications that require robust charge–discharge performance and predictable endurance. Its combination of 2.2 mF capacitance at 450 V, screw‑terminal mounting, and specified ripple and endurance figures make it well suited for inverter systems, servo drives, and equipment operating in fluctuating voltage environments.

Designers and procurement teams looking for a RoHS‑compliant, serviceable capacitor with detailed electrical and mechanical specifications will find the LQR2W222MSEF appropriate for medium‑ to high‑power industrial applications where long life and reliable performance under cycling and elevated temperature are required.

Request a quote or contact sales to discuss pricing, lead times, and sample availability for the LQR2W222MSEF.