LQR2G153MSEJ

The LQR2G153MSEJ is a screw-terminal aluminum electrolytic capacitor in Nichicon’s LQR series, rated at 15,000 µF and 400 V with polarized construction. It is designed for high-speed charge–discharge and high-frequency regenerative voltage environments, making it suitable for industrial power electronics such as inverters and AC servomotor systems.

With an operating temperature range of -25 °C to +85 °C and RoHS compliance, this capacitor offers high-voltage energy storage, strong ripple-handling capability, and long-term endurance for equipment exposed to fluctuating voltages and demanding charge–discharge cycles.

Key Features

• High Capacitance, High Voltage — 15,000 µF nominal capacitance at a 400 V rated voltage for bulk energy storage in DC link and regenerative circuits.
• Screw Terminal Mounting — Radial can with screw terminals for secure, low-impedance connections in power assemblies and easy serviceability.
• Wide Operating Temperature — Specified for -25 °C to +85 °C operation to cover industrial environment ranges.
• High Ripple Current Capability — Rated ripple current of 43 A at 120 Hz and 60.2 A at 100 kHz, supporting heavy AC ripple and high-frequency regenerative currents.
• Endurance and Charge–Discharge Durability — Endurance specified as 5,000 hours at 85 °C under DC bias plus rated ripple current; charge–discharge endurance validated to 20 million cycles (ΔV = rated × 0.3, 3 Hz) at room temperature.
• Polarized Electrolytic Construction — Designed for polarized DC applications such as rectifier circuits and voltage-doubler topologies.
• Leakage and Stability — Leakage current specification after 5 minutes is not more than 3√(V) µA or 5 mA (whichever is smaller); impedance stability at low temperature with Z(-25 °C)/Z(+20 °C) ≤ 8.
• RoHS Compliant — Meets RoHS directive (2011/65/EU, (EU)2015/863) for restricted substances compliance.

Typical Applications

• AC Servomotor Drives — Energy storage and regenerative bus filtering for high-frequency regenerative voltage in servomotor systems.
• General Inverters — DC link smoothing and ripple absorption in inverter power stages subject to fluctuating supply or regenerative loads.
• Voltage Doubler Rectifiers — Suitable for rectifier circuits using voltage-doubler topologies where high-capacitance, high-voltage storage is required.
• Industrial Power Equipment — Bulk energy buffering in equipment exposed to voltage fluctuations and frequent charge–discharge cycles.

Unique Advantages

• Substantial Energy Capacity: 15,000 µF at 400 V provides large stored energy for DC bus stabilization and regenerative capture.
• High-Frequency Performance: Ripple current ratings at both 120 Hz and 100 kHz support low-impedance performance across a wide frequency range.
• Designed for Durability: 5,000-hour endurance at 85 °C under rated conditions and validated 20 million charge–discharge cycles improve long-term reliability in demanding systems.
• Robust Mechanical Connection: Screw-terminal mounting enables secure, low-resistance connections for high-current assemblies.
• Predictable Low-Temperature Behavior: Specified impedance ratio (Z(-25 °C)/Z(+20 °C) ≤ 8) helps maintain performance in colder environments.
• Regulatory Compliance: RoHS conformity supports deployment in markets requiring restricted-substance compliance.

Why Choose LQR2G153MSEJ?

The LQR2G153MSEJ is positioned for industrial power-electronics designs that require substantial DC energy storage, strong ripple handling, and proven endurance under high-frequency charge–discharge conditions. Its screw-terminal package and polarized aluminum-electrolytic construction make it practical for retrofit and new-build inverter, servo, and rectifier systems operating up to 400 V.

Engineers specifying this capacitor gain a combination of large capacitance, measurable ripple capability at both low and high frequencies, and lifecycle characterization (endurance and charge–discharge durability) that supports reliable operation in voltage-fluctuating environments.

Request a quote or submit an inquiry to obtain pricing, availability, and technical support for LQR2G153MSEJ for your power-electronics design needs.