LNU2G272MSEG

The LNU2G272MSEG is a screw‑terminal aluminum electrolytic capacitor designed for high‑voltage industrial power applications. It provides 2.7 mF capacitance with a 400 V DC rating in a compact radial can with screw terminals.

Engineered for inverter and regenerative circuits, this capacitor supports high‑frequency charge/discharge loading and continuous operation at elevated temperatures, making it suitable for industrial power supplies, AC servomotor regeneration, and general inverter use.

Key Features

• Capacitance & Voltage: 2.7 mF capacitance rated at 400 V DC for bulk energy storage and filtering in power circuits.
• High‑Temperature Endurance: Rated for operation from −40°C to +105°C with a specified load life of 5000 hours at 105°C under rated ripple current.
• High‑Frequency Ripple Handling: Ripple current capability of 11.9 A at 120 Hz and 16.66 A at 10 kHz, suitable for high‑frequency regenerative and inverter environments.
• Screw‑Terminal Package: Radial can with screw terminals for secure power connections and mechanical robustness; series drawings indicate M5 nominal bolt size for terminal attachment.
• Polarized with Standard Tolerance: Polar capacitor with capacitance tolerance of −20% to +20% (measured at 120 Hz, 20°C).
• Low‑Temperature Impedance Behavior: Specified impedance stability with Z(−40°C)/Z(+20°C) ≤ 8 for 400–525 V rated devices, aiding performance in cold start and low‑temperature operation.
• Insulation & Voltage Proof: Insulation resistance greater than 100 MΩ at DC 500 V between terminal and bracket; withstands AC 2500 V for 1 minute between terminal and bracket without abnormality (series specification).
• RoHS Compliant: Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverter Power Supplies: Bulk energy storage and smoothing in inverter front ends and DC bus circuits for industrial drives.
• AC Servomotor Regeneration: Handling high‑frequency regenerative voltage and charge/discharge cycles in servo systems.
• General Inverter Systems: Filtering and ripple suppression in general inverter topologies subject to high ripple currents and frequent charge/discharge events.
• High‑Speed Charge/Discharge Loads: Applications requiring capacitors that tolerate rapid charge/discharge cycles and maintain performance after extensive cycling.

Unique Advantages

• High‑Voltage Capability: 400 V DC rating provides the voltage headroom needed for many industrial power circuits without overspecifying larger components.
• Designed for Elevated Temperatures: 105°C operating rating and 5000‑hour load life at that temperature ensure sustained performance under continuous high‑temperature ripple loading.
• Strong High‑Frequency Performance: Measured ripple current specs at both 120 Hz and 10 kHz support use in both line‑frequency and high‑frequency regenerative environments.
• Secure Screw‑Terminal Connection: Screw terminals and compatible M5 hardware (series drawing) simplify integration into high‑current power assemblies and improve mechanical reliability.
• Compact Radial Can Form Factor: Smaller size relative to previous LNT series variants while maintaining high voltage capability, helping reduce board and chassis space in power assemblies.
• Verified Insulation and Voltage Proof: Series insulation resistance and voltage‑proof specifications provide measurable electrical safety margins between terminal and bracket.

Why Choose LNU2G272MSEG?

LNU2G272MSEG positions itself as a practical high‑voltage energy storage component for industrial power electronics where sustained high‑temperature operation and robust ripple handling are required. Its combination of 2.7 mF capacitance, 400 V rating, screw‑terminal package, and endurance at 105°C addresses the needs of inverter, servo regeneration, and other demanding power applications.

This capacitor is suited to designers seeking a proven electrochemical solution with clear, verifiable specifications for ripple current, temperature endurance, insulation resistance, and mechanical termination—supporting reliable integration into industrial power systems and long‑term deployments.

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