LQR2V272MSEF

The LQR2V272MSEF is a screw‑terminal aluminum electrolytic capacitor from Nichicon’s LQR series, offering 2700 µF (2.7 mF) capacitance at a 350 V rating. It is a radial can with screw terminals designed for high‑frequency charge/discharge and heavy‑duty power applications.

Targeted at industrial power electronics, the capacitor is suited for high‑frequency regenerative voltage in AC servomotors and general inverters, rectifier circuits such as voltage doublers, and equipment operating in areas with fluctuating voltages. Key value comes from its high voltage rating, high ripple handling, and endurance under elevated temperature conditions.

Key Features

• Capacitance & Voltage — 2700 µF (2.7 mF) nominal capacitance with a 350 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• Screw‑Terminal Package — Radial can with screw terminals for secure, high‑current connections in power assemblies.
• High‑Frequency Charge/Discharge Capability — Designed for 85°C high‑speed charge/discharge operation, making it suitable for regenerative and inverter use.
• Ripple Current Performance — Rated ripple current of 10.8 A at 120 Hz and 15.12 A at 10 kHz to support heavy ripple and switching environments.
• Operating Temperature & Endurance — Specified operating range of −25°C to +85°C with endurance of 5000 hours at 85°C under rated conditions.
• Charge‑Discharge Endurance — Meets endurance after 20 million charge/discharge cycles (ΔV = rated voltage × 0.3, 3 Hz), with capacitance, tan δ and leakage current within specified limits.
• Leakage Current Specification — After 5 minutes at rated voltage, leakage is not more than 3√(V) µA or 5 mA (whichever is smaller) at 20°C.
• Physical Dimensions — Size nominally L: 11 × D: 5.1 cm; maximum seated height specified as 4.331 inch, optimized for compact power modules.
• RoHS Compliance — Compliant with RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Motor Drives — High‑frequency regenerative voltage for AC servomotors where robust energy absorption and release are required.
• Inverters and Power Converters — Bulk energy storage and ripple filtering in general inverters and power conversion systems operating with fluctuating line conditions.
• Rectifier and Voltage Doubler Circuits — Use in rectifier stages and voltage doubler configurations that demand high voltage and stable capacitance.
• Equipment in Voltage‑Fluctuating Areas — Systems exposed to unstable supply conditions that require capacitors with endurance and high ripple capability.

Unique Advantages

• High Voltage Capacity: 350 V rating enables use in medium‑voltage power rails and rectifier stages.
• Strong Ripple Handling: Specified ripple currents at both low and high frequencies (10.8 A at 120 Hz, 15.12 A at 10 kHz) reduce thermal stress in switching applications.
• Durable at Elevated Temperature: 5000 hours endurance at 85°C ensures stability for long service life in warm operating environments.
• Charge/Discharge Robustness: Verified for 20 million charge/discharge cycles (ΔV = 0.3×Vr, 3 Hz), supporting frequent regenerative events.
• Secure Mechanical Termination: Screw terminals provide reliable, low‑resistance connections for high current buswork and field serviceability.
• Regulatory Compliance: RoHS compliance supports deployments where restricted substances requirements apply.

Why Choose LQR2V272MSEF?

The LQR2V272MSEF combines a high nominal capacitance and 350 V rating with screw‑terminal convenience and proven endurance, making it well suited for industrial power electronics that require reliable energy buffering and frequent charge/discharge cycles. Its defined ripple current performance at both 120 Hz and 10 kHz ties directly to applications in inverters, regenerative drives, and rectifier circuits.

This capacitor is appropriate for engineers specifying robust bulk capacitance in systems exposed to voltage fluctuations and elevated temperatures. Backed by Nichicon’s LQR series specifications, it offers verifiable electrical and mechanical characteristics for long‑term integration into power modules and industrial equipment.

If you would like a quote or need more information about technical availability and ordering, please request a quote or contact sales with your project requirements and quantity needs.