LQR2W392MSEGBN

The LQR2W392MSEGBN is a Nichicon LQR series aluminum electrolytic capacitor offering 3900 µF capacitance at 450 V in a screw-terminal radial can package. It is designed for high-speed charge–discharge and DC link energy storage in power electronics.

Typical use cases include high-frequency regenerative circuits for AC servomotors and general inverters, rectifier circuits such as voltage doublers, and equipment operating in areas with fluctuating supply voltage. Key value propositions include high voltage/capacitance combination, specified ripple-current capability, long endurance at elevated temperature, and RoHS compliance.

Key Features

• Capacitance and Voltage — 3.9 mF (3900 µF) nominal capacitance rated at 450 V for DC link and bulk energy storage.
• Low Dissipation Factor — tanδ = 0.15 (measured at 20°C, 120 Hz), supporting reduced internal loss in AC ripple conditions.
• High Ripple Current Capability — Rated ripple current: 13.7 A at 120 Hz and 19.18 A at 100 kHz, suitable for demanding ripple and high-frequency applications.
• Endurance and Charge–Discharge Durability — 5000 hours rated life at 85°C under DC bias plus rated ripple current; endurance for 20 million charge–discharge cycles (ΔV = rated voltage × 0.3, 3 Hz) at room temperature per datasheet.
• Operating Temperature Range — Specified for −25°C to +85°C to cover a wide range of industrial environments.
• Screw Terminal Mounting — Radial can with screw terminals for robust, low-impedance power connections and simplified assembly in power systems.
• Polarized Aluminum Electrolytic — Polarized component suitable for DC link and rectifier configurations; leakage current specification provided in datasheet.
• Regulatory & Packaging — RoHS compliant and supplied in cardboard packaging for mass production handling.

Typical Applications

• Industrial Drives & Inverters — Energy storage and DC link filtering for AC servomotors and general inverters, including high-frequency regenerative voltage conditions.
• Rectifier Circuits / Voltage Doublers — Bulk capacitance for voltage-doubler rectifier stages and other high-voltage rectification topologies.
• Equipment in Fluctuating Voltage Environments — Stabilizes DC bus and absorbs supply fluctuations in equipment used where mains voltage varies.
• General-Purpose Power Electronics — Bulk filtering, energy buffering, and high-speed charge/discharge duty in power-supply and converter designs.

Unique Advantages

• High voltage and large capacitance: 3900 µF at 450 V provides substantial DC link energy storage in a single component.
• Designed for high-speed charge–discharge: LQR series specification includes high-speed charge–discharge behavior and endurance for repeated cycles, suitable for regenerative and pulse applications.
• Specified long life at elevated temperature: 5000 hours at 85°C with defined limits for capacitance change, tanδ, and leakage current ensures predictable ageing behavior.
• Measured low-loss performance: tanδ = 0.15 at 20°C, 120 Hz reduces thermal stress and energy dissipation in ripple environments.
• High ripple-current handling: Rated ripple currents at both low and high frequencies enable use in designs with significant AC components on the DC link.
• RoHS-compliant and production-ready packaging: Conforms to RoHS and is packaged in cardboard for volume assembly and handling.

Why Choose LQR2W392MSEGBN?

The LQR2W392MSEGBN combines high capacitance and high voltage rating with explicit endurance and ripple-current specifications, making it a strong choice for power-electronics designs that require robust DC link buffering and high-frequency charge–discharge performance. Its specified life at 85°C and charge–discharge endurance provide predictable long-term behavior for industrial inverter and servo applications.

This Nichicon LQR series screw-terminal capacitor is suited to engineers specifying components for regenerative circuits, voltage-doubler rectifiers, and equipment exposed to fluctuating supply conditions where large bulk capacitance and reliable thermal/ripple performance are required.

To request a quote or submit a procurement inquiry for LQR2W392MSEGBN, please contact our sales team with your quantity and delivery requirements.