LQR2W272MSEFBB

The LQR2W272MSEFBB is a Nichicon screw-terminal aluminum electrolytic capacitor rated at 2700 µF and 450 V DC. It is a radial can with screw terminals (φ51 × 150 mm) designed for high-frequency charge–discharge and DC-bus applications.

Engineered for industrial power electronics, this part targets inverter and motor-drive applications where high ripple-current capability, long endurance and robust terminal connections are required. Key value comes from its high voltage rating, measured low- and high-frequency ripple-current performance, and a 5000-hour endurance at 85°C.

Key Features

• Capacitance & Voltage — 2700 µF nominal capacitance at a rated voltage of 450 V DC, tolerance ±20% (−20% to +20%).
• High ripple-current handling — Rated ripple current of 10.2 A at 120 Hz and 14.28 A at 100 kHz, supporting both low- and high-frequency smoothing in power circuits.
• Endurance and durability — 5000 hours endurance at 85°C under DC bias plus rated ripple current; charge–discharge endurance specified for 20 million cycles (ΔV = rated voltage × 0.3, 3 Hz).
• Temperature range — Operating temperature from −25°C to +85°C to suit industrial ambient conditions.
• Robust screw-terminal package — Radial can with M5 screw terminals and φ51 × 150 mm dimensions (L: 150 mm × D: 51 mm) for secure, low-impedance connections in high-current applications.
• Leakage current specification — After 5 minutes at rated voltage, leakage current ≤ 3√V (µA) or 5 mA, whichever is smaller (measured at 20°C).
• RoHS compliant — Conforms to RoHS requirements as noted in the product documentation.

Typical Applications

• Inverter and motor drives — DC-bus energy storage and smoothing for AC servomotor and general inverter systems where high-voltage, high-ripple performance is needed.
• Regenerative power systems — Handling high-frequency regenerative voltages in systems such as braking and energy-recovery circuits.
• Rectifier and voltage-doubler circuits — Bulk storage and ripple suppression in rectifier circuits, including voltage-doubler topologies.
• Industrial equipment in fluctuating-voltage environments — Robust operation where supply voltage can vary, benefiting from the capacitor’s endurance and leakage specifications.

Unique Advantages

• High-voltage energy buffering: 450 V rating with 2700 µF capacitance provides substantial DC-bus smoothing in compact cylindrical packaging.
• Dual-frequency ripple capability: Separate ripple-current specs at 120 Hz and 100 kHz ensure predictable performance for both line-frequency and switching-frequency loads.
• Long, specified life: 5000 hours at 85°C under rated conditions gives a measurable endurance baseline for design lifetime planning.
• Proven charge–discharge durability: Qualified for 20 million charge–discharge cycles (ΔV = 0.3 × Vrated, 3 Hz), supporting repeated regeneration and cycling applications.
• Secure screw-terminal mounting: M5 screw terminals and a radial can (φ51 × 150 mm) provide low-impedance, mechanically robust connections suited to high-current installations.

Why Choose LQR2W272MSEFBB?

The LQR2W272MSEFBB positions itself as a high-voltage, high-ripple-capacity electrolytic solution from Nichicon for industrial power electronics. Its combination of 2700 µF at 450 V, measured ripple-current ratings at both low and high frequencies, and a defined 5000-hour endurance at 85°C make it suitable for DC-bus smoothing, regenerative circuits and inverter systems where predictable electrical and lifetime characteristics matter.

Choose this part when your design requires a robust screw-terminal capacitor with clear leakage, endurance and charge–discharge specifications. It is appropriate for engineering teams specifying components for long-running, high-energy power systems that benefit from Nichicon’s documented performance parameters.

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