LQR2V123MSEH

The LQR2V123MSEH is a screw-terminal aluminum electrolytic capacitor rated at 12,000 µF and 350 V, designed for industrial power applications. It is built for high-speed charge–discharge scenarios and environments with fluctuating voltages, providing bulk energy storage and ripple filtering where robust, high-capacitance solutions are required.

Typical use cases include regenerative circuits for AC servomotors, general inverters, voltage-doubler rectifiers and other equipment operating in unstable-voltage areas. The part combines high capacitance and a screw-terminal package for secure, high-current connections.

Key Features

• High Capacitance and Voltage: 12,000 µF nominal capacitance at a 350 V rated voltage for large energy storage and bulk filtering.
• Screw Terminal Package: Radial can with screw terminals for secure mechanical and electrical connections in power assemblies.
• Operating Temperature Range: Specified for −25 °C to +85 °C to support a wide range of industrial operating conditions.
• Endurance at Elevated Temperature: Rated for 5,000 hours at 85 °C under DC bias plus rated ripple current, with capacitance change within ±20% after the test.
• High Ripple Current Capability: Rated ripple current of 35.7 A at 120 Hz and 49.98 A at 10 kHz to handle substantial AC ripple in power conversion applications.
• Charge–Discharge Durability: Designed to meet endurance after 20 million charge–discharge cycles (ΔV = rated voltage × 0.3, 3 Hz) with limits on capacitance change, tan δ, and leakage current.
• Low-Temperature Stability: Impedance ratio Z(−25 °C)/Z(+20 °C) ≤ 8, ensuring predictable performance at low ambient temperatures.
• Leakage Current Specification: After 5 minutes at rated voltage, leakage current is limited to 3√(V) µA or 5 mA, whichever is smaller (measured at 20 °C).
• RoHS Compliant: Meets RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC Servomotor Regenerative Circuits: Energy buffering and smoothing for regenerative voltages in motor drives.
• General Inverters and Motor Drives: Bulk storage and high ripple handling for inverter DC links and power electronics.
• Voltage-Doubler Rectifier Circuits: Provides the required capacitance and voltage rating for rectifier and doubler topologies.
• Equipment in Fluctuating-Voltage Environments: Robust performance where input voltage varies, protecting downstream electronics and smoothing supply rails.
• Industrial Power Smoothing: Bulk filtering and transient absorption in large-scale industrial power systems.

Unique Advantages

• Large Energy Reserve: 12,000 µF at 350 V delivers substantial bulk capacitance for demanding power applications.
• High Ripple Current Support: Specified ripple ratings at 120 Hz and 10 kHz enable effective handling of both low- and high-frequency ripple currents.
• Engineered for Charge–Discharge Cycling: Meets rigorous charge–discharge endurance requirements (20 million cycles with ΔV = 0.3×V), supporting regenerative and pulsed loads.
• Thermal Endurance: 5,000-hour life at 85 °C under DC bias and ripple demonstrates reliability under continuous elevated-temperature operation.
• Secure Screw-Terminal Interface: Screw terminals simplify high-current connections and maintenance in power racks and assemblies.
• Regulatory Compliance: RoHS conformity supports deployment in regions requiring hazardous-substance compliance.

Why Choose LQR2V123MSEH?

The LQR2V123MSEH delivers high-capacitance, high-voltage energy storage in a robust screw-terminal package tailored for industrial power systems. Its combination of 12,000 µF at 350 V, specified ripple-current capability, and proven endurance at 85 °C makes it suitable for inverter DC links, regenerative motor drives, and other applications that demand sustained performance under thermal and electrical stress.

This part is appropriate for engineers and procurement teams designing or upgrading power-conversion and motor-control systems who require predictable lifetime behavior and secure connections. Backed by Nichicon series specifications for endurance, leakage, and low-temperature stability, the LQR2V123MSEH is positioned to provide long-term value in heavy-duty power applications.

Request a quote or submit a sales inquiry to evaluate the LQR2V123MSEH for your next power system design.