LQS2V181MELZ30

The LQS2V181MELZ30 from Nichicon is a snap‑in, radial can aluminum electrolytic capacitor in the LQS series, rated 180 µF at 350 V. It is designed for high‑speed charge–discharge environments and for use where voltage fluctuations and high‑frequency regenerative signals occur.

Typical market segments include industrial drives and power electronics: the part is suited for AC servomotor regenerative circuits, general inverters, and rectifier configurations such as voltage doublers. The capacitor delivers high operating temperature capability and measurable ripple performance for demanding power applications.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance at a rated voltage of 350 V, with a tolerance of ±20% (‑20%~20%).
• High‑Temperature Operation — Rated for continuous operation from ‑25 °C to 105 °C, with an endurance specification of 3000 hours at 105 °C under rated conditions.
• High‑Speed Charge–Discharge Design — Engineered for rapid charge and discharge cycles; the LQS series specifies endurance under repeated charge–discharge testing to maintain capacitance and leakage characteristics.
• High‑Frequency Performance — Specified ripple current of 900 mA at 120 Hz and 1.287 A at 50 kHz, making it suitable for regenerative and high‑frequency inverter environments.
• Snap‑In Radial Can Package — Snap‑in terminal mounting for secure board attachment and straightforward assembly in power modules; package dimensions approximately L: 3 × D: 2.2 cm.
• Polarized, RoHS‑Compliant — Polarized aluminum electrolytic construction and compliance with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC Servomotor Regenerative Circuits — Handles high‑frequency regenerative voltages and fast charge/discharge cycles common in servo drive energy recovery.
• General Inverters — Use in inverter DC bus and filtering stages where voltage fluctuation tolerance and ripple handling are required.
• Voltage Doubler Rectifier Circuits — Suited for rectifier configurations such as voltage doublers that demand robust DC capacitance at elevated voltages.
• Equipment in Voltage‑Fluctuating Environments — Designed for systems that experience rapidly changing supply conditions and need stable capacitance and leakage performance.

Unique Advantages

• High Temperature Endurance: 3000 hours rated endurance at 105 °C supports long‑term operation in hot power electronics enclosures.
• Designed for Rapid Cycling: Specified for high‑speed charge–discharge behavior, with series test conditions validating capacitance and leakage stability after extensive cycling.
• Measurable High‑Frequency Ripple Capability: Documented ripple ratings at 120 Hz and 50 kHz allow engineers to size the part for both mains‑frequency and high‑frequency ripple environments.
• Robust Mounting for Power Modules: Snap‑in radial can construction provides reliable mechanical retention and repeatable PCB installation for power assemblies.
• RoHS Compliance: Meets RoHS (2011/65/EU, (EU)2015/863) requirements for restricted substances.

Why Choose LQS2V181MELZ30?

The LQS2V181MELZ30 is positioned for engineers building industrial power systems that require a reliable, high‑voltage electrolytic capacitor capable of withstanding elevated temperatures and fast charge/discharge duty. Its combination of 350 V rating, 180 µF capacitance, and documented ripple capability makes it a practical choice for inverter DC buses, regenerative circuits, and rectifier topologies.

For designers focused on durability and predictable performance under thermal and electrical stress, this Nichicon LQS series part offers practical endurance specifications and a snap‑in package for robust assembly. The RoHS compliance further supports modern regulatory requirements for industrial equipment purchases.

If you would like a quote or further technical assistance, please contact sales to request pricing, availability, or application support for LQS2V181MELZ30.