LQR2V182MSEF

The LQR2V182MSEF is a screw-terminal aluminum electrolytic capacitor designed for power applications requiring high charge–discharge speed and robust DC bus performance. It provides 1.8 mF capacitance at a 350 V rating in a radial can with screw terminals, optimized for high-frequency regenerative and inverter environments.

Engineered for equipment operating in fluctuating voltage conditions and rectifier circuits such as voltage doublers, this capacitor combines high ripple handling with a service life characterized at elevated temperature to support demanding industrial applications. The part is RoHS compliant.

Key Features

• Capacitance & Voltage — 1.8 mF (1800 µF) nominal capacitance with a 350 V rated voltage and ±20% tolerance, suitable for bulk energy storage and DC bus smoothing.
• High ripple capability — Rated ripple current of 7.2 A at 120 Hz and 10.08 A at 10 kHz to support both low- and high-frequency ripple environments typical of inverters and regenerative drives.
• Charge–discharge endurance — Meets series endurance for 20 million charge–discharge cycles (ΔV = rated × 0.3, 3 Hz) with capacitance change within ±20% and leakage within initial limits, supporting frequent regenerative events.
• Thermal and operational range — Operating temperature range −25 °C to +85 °C with an endurance rating of 5000 hours at 85 °C under DC bias plus rated ripple current.
• Robust mounting — Screw terminal radial can package for secure, low-resistance power connections in high-current assemblies.
• Low-temperature stability — Specified impedance characteristic at low temperature (Z(−25 °C)/Z(+20 °C) = 8) for predictable behavior in cooler environments.
• Compliance — RoHS directive compliant (2011/65/EU, (EU)2015/863).
• Form factor — Compact radial can dimensions L: 8 × D: 5.1 cm for layout planning in power electronics racks and cabinets.

Typical Applications

• AC servomotor drives (regenerative circuits) — Handles high-frequency regenerative voltage and frequent charge–discharge cycles encountered in motion-control systems.
• General inverters — Used on DC link and smoothing stages to manage ripple and transient energy during switching events.
• Voltage-doubler rectifier circuits — Suitable for rectifier stages where capacitive energy storage is required for voltage doubling topologies.
• Equipment operating in fluctuating-voltage areas — Provides stable bulk capacitance and endurance where supply conditions vary.

Unique Advantages

• High ripple handling capability: Dual-specified ripple current at 120 Hz and 10 kHz enables use across a range of switching frequencies without compromising performance.
• Designed for frequent charge–discharge: Endurance validated for 20 million charge–discharge cycles supports regenerative and pulsed-power applications.
• Elevated temperature endurance: 5000-hour rating at 85 °C under DC bias and ripple current provides predictable lifetime in thermally demanding installations.
• Screw-terminal robustness: Secure, low-impedance connections simplify assembly and improve reliability for high-current power paths.
• Wide operating temperature: −25 °C to +85 °C range allows deployment across diverse ambient conditions.
• RoHS compliance: Meets applicable restricted-substance requirements for modern equipment designs.

Why Choose LQR2V182MSEF?

The LQR2V182MSEF positions itself as a purpose-built power capacitor for industrial inverter and regenerative applications where high ripple, repeated charge–discharge cycling, and operating stability under fluctuating voltages are required. Its screw-terminal can package and validated endurance characteristics make it well suited to designers focused on reliable DC-link energy storage and transient handling.

Choose this part when your design requires a balance of bulk capacitance, elevated ripple performance, and long-term thermal endurance, backed by a RoHS-compliant product family and documented series-level specifications.

Request a quote or contact sales to discuss pricing, availability, and integration support for the LQR2V182MSEF in your power electronics designs.