LQR2W272MSEHBB

The LQR2W272MSEHBB is a screw‑terminal aluminum electrolytic capacitor from Nichicon's LQR series, rated 2700 µF at 450 V. It is a radial can with screw terminals (φ76.2 × 80 mm length) designed for high‑frequency charge–discharge and general purpose power applications.

Engineered for applications with fluctuating voltages and regenerative high‑frequency environments, this capacitor offers high ripple handling and extended endurance at elevated temperature conditions.

Key Features

• Electrical Capacity: 2700 µF nominal capacitance with ±20% tolerance (measured at 120 Hz, 20°C), polarized for DC applications.
• High Voltage Rating: Rated for 450 V operation to support high‑voltage power circuits and rectifier arrangements.
• High Ripple Current Capability: Rated ripple current of 10 A at 120 Hz and 14 A at 10 kHz, suited to high‑frequency regenerative and inverter circuits.
• Temperature Range: Operates from −25°C to +85°C, with stability and impedance performance verified down to −25°C (Z(−25°C)/Z(+20°C) ≤ 8).
• Endurance and Charge–Discharge Robustness: 5000 hours endurance at 85°C under DC bias plus rated ripple; additionally qualified for 20 million charge–discharge cycles (ΔV = 0.3 × Vrated at 3 Hz) with capacitance and leakage within specification.
• Leakage Current Specification: After 5 minutes of rated voltage application at 20°C, leakage current is limited to 3√V µA or 5 mA, whichever is smaller, per datasheet test method.
• Mechanical / Mounting: Radial can with screw terminals sized for M5 bolts; nominal case diameter φ76.2 mm and length approximately 80 mm for secure bolted mounting.
• RoHS Compliance: Compliant with RoHS (2011/65/EU, (EU)2015/863).

Typical Applications

• AC servo and inverter systems: Energy buffering and smoothing in regenerative circuits and motor drive electronics subject to high‑frequency charge–discharge.
• Power converters and rectifiers: Bulk filtering and voltage stabilization in rectifier circuits including voltage doubler configurations.
• Equipment in fluctuating voltage environments: Applications demanding stable capacitance and controlled leakage under variable line conditions.
• General purpose power electronics: Use in industrial power supplies and control systems where high voltage and ripple capability are required.

Unique Advantages

• High voltage and high capacitance combination: 2700 µF at 450 V provides substantial energy storage in a single radial can for compact power designs.
• Designed for high‑frequency stress: Ripple current ratings at both 120 Hz and 10 kHz support regenerative and switching applications with significant AC content.
• Proven endurance under elevated temperature: 5000 hours at 85°C under rated stress yields predictable long‑term performance for thermal‑challenged installations.
• Robust charge–discharge tolerance: Qualified for 20 million cycles at defined ΔV and frequency, addressing demanding cycling applications.
• Secure screw‑terminal mounting: M5 bolt compatibility and a φ76.2 mm can offer reliable mechanical fastening for industrial assemblies.
• Standards‑oriented leakage control: Leakage current limited by a clear datasheet formula (3√V µA or 5 mA limit), enabling predictable leakage budgeting in designs.

Why Choose LQR2W272MSEHBB?

The LQR2W272MSEHBB positions itself as a high‑voltage, high‑ripple aluminum electrolytic solution for industrial power electronics where robust energy storage, cycling endurance, and controlled leakage are required. Its screw‑terminal radial package and M5 mounting compatibility simplify mechanical integration into inverter, servo, and rectifier assemblies.

This capacitor suits engineers and procurement teams seeking a Nichicon LQR series part with specified endurance at 85°C, documented charge–discharge performance, and clear electrical limits for ripple and leakage—helping deliver reliable power conditioning in systems exposed to high frequency and fluctuating voltages.

Request a quote or submit an inquiry for LQR2W272MSEHBB to obtain pricing, availability, and technical support for integration into your next power electronics design.