LQR2W272MSEFBN

The LQR2W272MSEFBN is a screw-terminal aluminum electrolytic capacitor rated at 2.7 mF (2700 µF) and 450 V. It is designed for high-speed charge–discharge and high-frequency regenerative circuits, offering robust energy storage for inverters, servo drives and other equipment operating in fluctuating-voltage environments.

Key value lies in its high voltage rating, high ripple-current capability and proven endurance: engineered to deliver reliable performance up to 85°C with a 5000-hour rated lifetime, packaged in a radial can with screw terminals for secure mounting and high-current connection.

Key Features

• Electrical Capacity & Rating — 2.7 mF (2700 µF) nominal capacitance at 450 V rated voltage with ±20% tolerance.
• High Ripple Current Handling — Rated ripple current of 10.2 A at 120 Hz and 14.28 A at 10 kHz to support high-frequency and regenerative power circuits.
• Loss and Leakage Characteristics — Tangent of loss angle (tan δ) 0.15 and leakage current specified at 3300 µA, enabling predictable dissipation and standby loss behavior.
• Low ESR — Equivalent series resistance of 150 mΩ at 120 Hz to minimize conduction losses under AC ripple conditions.
• Endurance & Reliability — Endurance rating of 5000 hours at 85°C; meets specified limits for capacitance change, tan δ and leakage after endurance testing.
• Mechanical & Mounting — Radial can with screw terminals (φ51 × 150 mm overall size, L: 15 × D: 5.1 cm); terminal hardware for φ51 size uses an M5 bolt per the LQR series drawing.
• Temperature Range — Rated operating temperature range from −25°C to +85°C.
• Compliance & Packaging — RoHS compliant; supplied in cardboard packing and available in mass production status.

Typical Applications

• AC Servo Drives and Motor Controllers — Supports high-frequency regenerative voltages and rapid charge–discharge cycles in servo and motion-control systems.
• General Inverters — Provides bulk energy storage and ripple filtering in inverter DC-link circuits exposed to fluctuating voltages.
• Rectifier and Voltage-Doubler Circuits — Suitable for use in rectifier stages and voltage-doubler topologies where high-voltage, high-capacitance components are required.
• Industrial Power Electronics — Used where robust screw-terminal mounting and high ripple current capability improve system reliability under heavy load switching.

Unique Advantages

• High-Voltage Energy Storage: 450 V rating combined with 2700 µF capacitance delivers substantial DC-link energy for power-conversion applications.
• Designed for High Ripple Environments: 10.2 A (120 Hz) and 14.28 A (10 kHz) ripple-current ratings enable the capacitor to handle both low- and high-frequency AC stress.
• Predictable Dissipation: Specified tan δ (0.15) and ESR (150 mΩ at 120 Hz) provide clear parameters for thermal and loss budgeting in designs.
• Long Endurance at Elevated Temperature: 5000 hours life at 85°C supports long-term operation in demanding industrial environments.
• Secure Screw-Terminal Mounting: Radial can with screw terminals (φ51 size with M5 bolt) facilitates reliable, low-impedance connections for high-current systems.
• RoHS Compliant and Production-Ready: Environmentally compliant and available in mass production quantities for deployment in volume designs.

Why Choose LQR2W272MSEFBN?

The LQR2W272MSEFBN delivers a focused combination of high voltage, high capacitance and robust ripple-current capability, making it suitable for DC-link, regenerative and rectifier applications in industrial power electronics. Its defined ESR, tan δ and leakage specifications allow engineers to model dissipation and thermal behavior precisely.

This capacitor is ideal for designers seeking a production-ready, screw-terminal aluminum electrolytic with long endurance at elevated temperatures, secure mechanical mounting and clear electrical performance parameters for reliable system integration.

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