LQS2V181MELA25

The LQS2V181MELA25 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LQS series, designed for high‑frequency charge/discharge environments. It is a polarized, radial can component rated at 350 V and 180 µF, engineered for power applications that require robust ripple handling and elevated temperature endurance.

Targeted use cases include inverter and motor drive electronics where regenerative voltages and fluctuating supply conditions occur, as well as rectifier stages such as voltage doublers. The part combines a compact 25 mm × 25 mm footprint with a 105 °C endurance rating for reliable operation in demanding power systems.

Key Features

• High Voltage Rating — Rated for 350 V DC to support intermediate‑voltage power rails and rectifier circuits.
• Capacitance & Tolerance — 180 µF with ±20% tolerance at 120 Hz, 20 °C, providing energy storage for smoothing and transient support.
• Snap‑In Radial Can — Snap‑in terminal package (radial can) enables secure board mounting for high ripple and charge/discharge cycles.
• High Ripple Performance — Rated ripple current of 900 mA at 120 Hz and 1.287 A at 50 kHz for effective AC ripple dissipation in power assemblies.
• Thermal & Endurance Characteristics — Operating range −25 °C to +105 °C with 3000 hours endurance at 105 °C under rated bias and ripple conditions.
• Loss and Leakage — Tangent of loss angle (tan δ) ≤ 0.15 at 20 °C, 120 Hz; leakage current specified at 0.75 mA for this part number.
• RoHS Compliant — Conforms to RoHS requirements for regulated substance control.
• Designed for High‑Speed Charge/Discharge — Part of the LQS series optimized for high speed charge/discharge performance at elevated temperature.

Typical Applications

• Industrial Inverters and Drives — Handles regenerative voltage and high‑frequency ripple in AC servomotor and general inverter power stages.
• Power Rectifiers and Voltage Doublers — Used in rectifier circuits and voltage doubler arrangements where high DC voltage and surge capability are required.
• Power Supply Filtering — Provides bulk energy storage and ripple smoothing on 350 V DC rails in industrial power supplies.
• Equipment in Fluctuating Voltage Environments — Suited to systems exposed to supply variation, leveraging the series’ design for voltage fluctuation resilience.

Unique Advantages

• Compact, High‑Voltage Energy Storage: 180 µF at 350 V in a 25 mm × 25 mm can saves PCB area while delivering DC bulk capacitance.
• High Ripple Capability: Rated ripple currents at both low and high frequencies support modern switching and regenerative power topologies.
• Elevated Temperature Endurance: 3000‑hour rating at 105 °C ensures stability and service life in hot power electronics enclosures.
• Proven Charge/Discharge Performance: LQS series design is optimized for high‑speed charge/discharge cycles common in inverter and motor control systems.
• Reliable Dielectric Performance: Low tan δ (≤ 0.15 at 120 Hz, 20 °C) and controlled leakage current provide predictable behavior for design margin calculations.
• RoHS Compliance: Meets regulatory material standards for use in regulated markets and assemblies.

Why Choose LQS2V181MELA25?

The LQS2V181MELA25 is positioned for engineers needing a compact, high‑voltage electrolytic capacitor with proven ripple and charge/discharge endurance for industrial power electronics. Its snap‑in radial can package simplifies board retention for high‑energy applications while the 105 °C, 3000‑hour endurance provides predictable long‑term behavior in elevated temperature environments.

This part is appropriate for designers of inverters, motor drives, and power supplies who require reliable bulk capacitance and robust ripple handling in a small footprint, with RoHS compliance and defined electrical characteristics for straightforward integration and qualification.

If you would like pricing, lead‑time, or a formal quote for LQS2V181MELA25, please request a quote or submit an inquiry specifying required quantities and delivery needs.