LQS2W271MELC30

The LQS2W271MELC30 is a snap‑in terminal aluminum electrolytic capacitor rated 450 V with a nominal capacitance of 270 µF and ±20% tolerance. Designed for high‑speed charge–discharge performance and continuous operation up to 105°C, it addresses high‑voltage power applications that demand robust voltage handling and thermal endurance.

Typical use cases include high‑frequency regenerative voltage circuits for AC servomotors and general inverters, rectifier circuits such as voltage doublers, and equipment operating in environments with fluctuating supply voltage. The part is RoHS compliant.

Key Features

• High Voltage Rating — 450 V nominal rated voltage suitable for high‑voltage DC bus and power conversion applications.
• Capacitance & Tolerance — 270 µF with ±20% tolerance, providing bulk energy storage and smoothing for power electronics.
• High‑Temperature Operation — Rated for continuous operation from –25 to +105°C, supporting elevated ambient temperatures in power systems.
• High‑Speed Charge–Discharge — Designed for high speed charge–discharge behavior; series characterization targets performance under rapid cycling.
• Ripple Current Performance — Specified ripple current of 1.23 A at 120 Hz and 1.759 A at 50 kHz to support AC ripple handling across low and high frequencies.
• Endurance & Reliability — Meets endurance requirements after DC bias plus rated ripple current for 3000 hours at 105°C; charge–discharge endurance test defines behavior after 50 million cycles (δV = rated voltage + 0.35, 6 Hz) at room temperature.
• Polarized, Snap‑in Mounting — Polarized radial can with snap‑in terminals for secure PCB mounting in power assemblies.
• RoHS Compliant — Conforms to RoHS directive (2011/65/EU, (EU)2015/863).
• Compact Can Package — Radial, snap‑in can with footprint optimized for power modules (dimensions: L: 3 × D: 3.5 cm).

Typical Applications

• AC Servomotor Drives — Supports high‑frequency regenerative voltages and rapid charge–discharge cycles in motor drive power stages.
• General Inverters — Bulk energy storage and ripple suppression on DC bus circuits for inverters used in industrial and commercial systems.
• Voltage Doubler / Rectifier Circuits — Suited for rectifier topologies such as voltage doublers where high‑voltage DC smoothing is required.
• Equipment in Fluctuating Voltage Environments — Designed for systems exposed to supply variation, providing stable capacitance and controlled leakage under stress.

Unique Advantages

• High DC Bus Compatibility: 450 V rating enables use directly on high‑voltage DC rails common in inverter and drive designs.
• Thermal Durability: Continuous operation to 105°C with a 3000‑hour endurance rating under rated conditions helps maintain performance in hot power enclosures.
• Charge–Discharge Endurance: Validated for extended charge–discharge cycling (50 million cycles at defined test conditions), supporting applications with frequent energy reversals.
• Multi‑Frequency Ripple Handling: Specified ripple currents at both 120 Hz and 50 kHz provide quantified performance for low‑ and high‑frequency ripple environments.
• Secure Snap‑in Mounting: Snap‑in terminal and radial can package simplify assembly and provide mechanical stability in power modules.
• Regulatory Compliance: RoHS compliance ensures compatibility with restricted‑substance requirements in commercial and industrial products.

Why Choose LQS2W271MELC30?

The LQS2W271MELC30 is positioned for power conversion and motor drive designs that require a high‑voltage, high‑temperature electrolytic capacitor with proven charge–discharge endurance. Its combination of 450 V rating, 270 µF capacitance, defined ripple current ratings at multiple frequencies, and validated long‑term endurance make it suitable for regenerative and fluctuating voltage environments.

This part is a practical choice for engineers designing inverters, servo drives, and rectifier circuits who need quantifiable electrical and thermal performance, a compact radial snap‑in package, and RoHS conformity for broader supply‑chain acceptance.

Request a quote or submit an inquiry to get pricing and availability for LQS2W271MELC30 and discuss how it fits your power electronics design requirements.