LQR2W272MSEHBN

The LQR2W272MSEHBN is a screw-terminal aluminum electrolytic capacitor from Nichicon offering 2700 µF capacitance at a 450 V rating. It is built for power-electronics environments that demand high ripple handling and reliable DC bus energy storage.

Designed for high ripple applications, this radial can with screw terminals targets inverter and motor-drive related equipment, voltage-doubler rectifiers, and other systems exposed to fluctuating voltages. Key value comes from its high ripple-current capability, extended endurance at elevated temperature, and robust screw-terminal packaging for production use.

Key Features

• High Capacitance and Voltage: 2700 µF at 450 V provides significant DC bus energy storage for power electronics and smoothing applications.
• High Ripple Current Capability: Rated for 10 A at 120 Hz (low-frequency) and 14 A at 100 kHz (high-frequency), enabling handling of substantial ripple in both low- and high-frequency applications.
• Endurance and Temperature Range: 5000 hours at 85°C endurance with an operating temperature range of -25°C to 85°C for sustained performance in elevated ambient conditions.
• Tight Tolerance: Capacitance tolerance of -20% to +20% (±20%) at 120 Hz, 20°C for predictable circuit behavior.
• Screw-Terminal Radial Can Package: φ76.2 × 80L radial can with M5 nominal bolt diameter screw terminals for secure mechanical and electrical connections in panel or chassis-mounted power assemblies.
• 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), supporting predictable standby and fault behavior.
• RoHS Compliant and Production Packaging: RoHS-compliant construction and supplied in cardboard packing suitable for mass-production handling.

Typical Applications

• Inverters and Motor Drives: Energy buffering and smoothing in AC servomotor and general inverter circuits where high ripple currents and voltage fluctuations are present.
• Voltage-Doubler Rectifiers: Use in rectifier circuits including voltage-doubler topologies for stable DC filtering at high voltage.
• Fluctuating-Voltage Equipment: Systems exposed to variable input or regenerative voltages that require capacitive stabilization and ripple absorption.
• General Power Electronics: Bulk energy storage and DC bus smoothing in industrial power supplies and converters that need high-capacitance, high-voltage components.

Unique Advantages

• High energy density at high voltage: 2700 µF at 450 V provides substantial DC storage in a single radial can, reducing the number of parts required for a given energy requirement.
• Broad ripple handling: Separate low- and high-frequency ripple ratings (10 A at 120 Hz and 14 A at 100 kHz) make the part applicable across varied switching and line-frequency conditions.
• Durability at elevated temperature: 5000-hour endurance at 85°C supports long-term stability in hot power-electronics environments.
• Serviceable screw-terminals: M5 screw terminals enable secure, repeatable connections suitable for high-current bus wiring and field servicing.
• Predictable leakage behavior: Clear leakage-current limits after voltage application aid in design margining for standby and fault conditions.
• Production-friendly packaging: Cardboard packing tailored for mass-production availability simplifies handling and inventory for manufacturing workflows.

Why Choose LQR2W272MSEHBN?

The LQR2W272MSEHBN combines high capacitance and a 450 V rating with targeted ripple-current capability and a screw-terminal radial can package, making it a practical choice for power-electronics designs that require robust DC bus energy storage and ripple mitigation. Its 5000-hour endurance at 85°C and RoHS compliance make it suitable for industrial systems operating in elevated temperatures while meeting environmental requirements.

This Nichicon part is well suited to engineers specifying components for inverters, motor drives, rectifier circuits, and other equipment exposed to fluctuating or regenerative voltages where long-term stability and secure terminal connections matter.

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