LQR2G272MSEGBB

The LQR2G272MSEGBB is a screw-terminal large-can aluminum electrolytic capacitor designed for high-voltage, high-ripple power applications. It delivers 2.7 mF (2700 µF) at a 400 V rating in a φ63.5 × 90L package with M5 screw terminals.

Engineered for 85°C high-speed charge–discharge environments, this Nichicon LQR series part targets industrial power electronics where regenerative energy handling, voltage fluctuation tolerance and reliable bulk energy storage are required—examples include inverter systems, AC servomotor drives and voltage-doubler rectifier circuits.

Key Features

• Capacitance & Voltage: 2.7 mF (2700 µF) nominal capacitance with a rated voltage of 400 V, providing substantial bulk energy storage for high-voltage power stages.
• High ripple-current capability: Rated low-frequency ripple current of 11.5 A at 120 Hz and high-frequency ripple current of 16.1 A at 10 kHz to handle demanding charge/discharge cycles.
• Low ESR: Equivalent series resistance of 150 mΩ at 120 Hz to reduce heating and improve efficiency under ripple conditions.
• Electrical loss characteristic: tan δ = 0.15 measured at 20°C, 120 Hz, supporting predictable dissipation behavior in design calculations.
• Endurance and reliability: Rated for 5000 hours at 85°C under specified DC bias plus rated ripple current, with defined limits for capacitance change, tan δ and leakage current after endurance testing.
• Operating temperature range: −25°C to +85°C to cover a wide range of industrial ambient conditions.
• Mechanical & mounting: Large-can radial construction with screw terminals (M5 nominal bolt for φ63.5 size) for secure electrical and mechanical connection in power assemblies.
• Compliance & packaging: RoHS-compliant and supplied in cardboard packing; part is in mass production.

Typical Applications

• Inverter power stages: Bulk energy storage and smoothing in general-purpose inverters, benefiting from high ripple-current capability and 400 V rating.
• AC servomotor regenerative circuits: Handling regenerative voltage and high-frequency charge–discharge cycles in motor drive systems.
• Voltage-doubler rectifiers: Use as the rectifier/smoothing capacitor in voltage-doubler circuits where high-voltage and large capacitance are required.
• Industrial equipment in fluctuating voltage environments: Applications that require stable bulk capacitance despite voltage swings and frequent ripple stress.

Unique Advantages

• High ripple tolerance: 11.5 A (120 Hz) and 16.1 A (10 kHz) ratings enable operation in high-stress power-conversion and regenerative scenarios.
• Robust thermal endurance: 5000-hour lifetime at 85°C ensures predictable long-term behavior under elevated operating temperatures.
• Low dissipation: 150 mΩ ESR and tan δ = 0.15 (20°C, 120 Hz) reduce power loss and self-heating during ripple loading.
• Screw-terminal reliability: M5 screw-terminal mounting provides a secure, low-inductance connection for high-current paths in power assemblies.
• High-voltage capability: 400 V rating supports bulk storage and smoothing in medium- to high-voltage power designs without series stacking.
• Production-ready supply: RoHS-compliant and in mass production, facilitating predictable procurement and BOM planning.

Why Choose LQR2G272MSEGBB?

The LQR2G272MSEGBB combines large capacitance (2.7 mF) and a 400 V rating with design features tailored for high-frequency, high-ripple power environments. Its low ESR, specified ripple-current capabilities and 5000-hour endurance at 85°C make it suitable for industrial power electronics where sustained performance under thermal and electrical stress is required.

Built on the Nichicon LQR screw-terminal platform and supplied in mass-production quantities, this capacitor is intended for engineers designing inverter drives, regenerative motor systems and other applications that need dependable bulk energy storage with secure mechanical connections.

Request a quote or submit an RFQ to receive pricing and availability information for the LQR2G272MSEGBB.