LNU2G272MTEG

The LNU2G272MTEG is a screw-terminal aluminum electrolytic capacitor in Nichicon’s LNU series, rated at 2.7 mF and 400 V DC. It is a stud-bolt mount, radial can design engineered for industrial power environments requiring high-voltage energy storage and robust charge–discharge performance.

Designed for inverter and regenerative circuits, this capacitor supports high-frequency loading and long-term operation at elevated temperatures, delivering reliable capacitance and ripple handling for industrial power supplies, AC servomotor regenerative circuits, and general inverter applications.

Key Features

• Capacitance & Voltage: 2.7 mF capacitance with a 400 V DC rating; capacitance tolerance is ±20% (120 Hz, 20°C).
• 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 and DC bias.
• High ripple capability: Rated ripple current of 11.9 A at 120 Hz and 16.66 A at 10 kHz, supporting demanding AC and high-frequency applications.
• Robust leakage and isolation: Leakage current after 5 minutes is limited to 3√CV (μA) or 5 mA (whichever is smaller) at 20°C; insulation resistance exceeds 100 MΩ at DC 500 V between terminal and bracket.
• Voltage proof: Withstands AC 2500 V for 1 minute between terminal and bracket without abnormality, per the series specifications.
• Mechanical & mounting: Stud bolt (M5) mount with screw terminals in a radial can package; nominal package dimensions: L: 8 cm × D: 6.35 cm.
• Polarized design: Polar capacitor suitable for DC energy-storage applications in power electronics.
• RoHS compliant: Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial power supplies: Energy storage and smoothing for inverter front-ends and industrial DC bus systems where high-voltage capacitors are required.
• AC servomotor regenerative circuits: Handles high-frequency regenerative voltages and charge–discharge cycles common in motor drive applications.
• General inverter systems: Support for power conversion and filtering in inverters that demand high ripple tolerance and elevated operating temperature endurance.
• High-speed charge–discharge circuitry: Suited for circuits that see rapid voltage transitions and frequent charge/discharge cycles.

Unique Advantages

• High-voltage capability: 400 V nominal rating (series rated up to DC 525 V) enables use in higher-voltage power-electronics designs without series stacking.
• Designed for elevated-temperature operation: 5000-hour load life at 105°C under rated ripple ensures predictable performance in hot industrial environments.
• Strong ripple and frequency performance: Specified ripple currents at both 120 Hz and 10 kHz support low-impedance behavior across common power-electronics frequency ranges.
• Secure, serviceable connections: Stud bolt mount with screw terminals provides reliable mechanical retention and simplified installation in power cabinets and assemblies.
• Electrical safety margins: Insulation resistance and voltage-proof specifications reduce risk of terminal-to-bracket failures during high-voltage stress testing.

Why Choose LNU2G272MTEG?

LNU2G272MTEG is positioned for engineers designing industrial power systems that require a high-voltage, high-ripple aluminum electrolytic capacitor with proven endurance at elevated temperatures. Its combination of 400 V rating, robust ripple handling at both low and high frequencies, and a 5000-hour life at 105°C make it well suited to inverter, regenerative, and heavy-duty DC bus applications.

This capacitor delivers practical long-term value through predictable electrical characteristics, secure stud-bolt mounting, and RoHS compliance, making it a straightforward choice for teams focused on reliable power-electronics designs and maintainable installations.

Request a quote or submit a pricing inquiry to receive application-specific pricing and availability for LNU2G272MTEG. Our team will respond with lead-time and procurement options to support your design and production schedule.