LQS2V271MELZ40

The LQS2V271MELZ40 is a snap‑in terminal aluminum electrolytic capacitor designed for high‑speed charge–discharge applications. It is part of Nichicon’s LQS series and is optimized for power electronics where regenerative currents, voltage fluctuation and high ripple demands are present.

With a 350 V rated voltage, 270 µF capacitance and a −25 °C to +105 °C operating range, this radial can capacitor targets inverter and motor drive systems, voltage‑doubler rectifiers and other general‑purpose power applications that require robust performance and long endurance. It is RoHS compliant.

Key Features

• Capacitance & Voltage — Rated at 270 µF and 350 V with a tolerance of −20% to +20% for predictable energy storage in high‑voltage power circuits.
• High‑speed charge–discharge design — Snap‑in terminal type from the LQS series, specified for high speed charge–discharge operation suitable for regenerative and inverter systems.
• Temperature & lifetime — Operating temperature range of −25 °C to +105 °C with an endurance specification of 3000 hours at 105 °C under rated conditions.
• Ripple current specification — Rated ripple currents of 1.1 A at 120 Hz and 1.573 A at 50 kHz to support both low‑ and high‑frequency power processing.
• Electrical stability — Leakage current specified as I ≤ 3√(C·V) µA after 5 minutes at 20 °C; tan δ max 0.15 at 350 V (measured at 120 Hz, 20 °C) for controlled loss characteristics.
• Durability under cycling — Series test shows endurance for extensive charge–discharge behavior (50 million cycles under specified test conditions) and defined limits for capacitance change, tan δ and leakage current.
• Package & mounting — Radial can, snap‑in package with physical dimensions of L: 4 × D: 2.2 cm and a seated height max of 1.575 inch for secure PCB mounting in power assemblies.
• Environmental compliance — Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Inverters & motor drives — Used for high‑frequency regenerative voltage handling in AC servomotor drives and general inverters where frequent charge–discharge events occur.
• Voltage‑doubler rectifiers — Suited for rectifier circuits configured as voltage doublers, providing required bulk capacitance at high voltage.
• Industrial power supplies — Applied in equipment operating in voltage‑fluctuating environments to stabilize DC link and absorb transient energy.
• General‑purpose power electronics — Appropriate where robust high‑voltage capacitance and long thermal endurance are required.

Unique Advantages

• High‑temperature endurance: 105 °C rating and 3000‑hour endurance at that temperature improve reliability in hot enclosures and industrial environments.
• Designed for high cycling: Validated charge–discharge endurance (series data) supports applications with repeated regenerative events, reducing risk of premature degradation.
• Dual‑frequency ripple support: Specified ripple current at both 120 Hz and 50 kHz enables use across a range of switching and line frequencies.
• Compact power footprint: Radial snap‑in can with a 4 × 2.2 cm footprint simplifies board layout for DC link and bulk storage on power PCBs.
• Predictable electrical behavior: Specified leakage and tan δ limits with a defined test method (I ≤ 3√CV after 5 minutes; tan δ at 120 Hz, 20 °C) help with thermal and loss budgeting.
• RoHS compliant: Meets current RoHS requirements to support environmental compliance in finished equipment.

Why Choose LQS2V271MELZ40?

The LQS2V271MELZ40 is positioned for engineers designing robust power electronics where high‑voltage capacitance, thermal endurance and frequent charge–discharge capability are required. Its snap‑in radial package, specified ripple ratings and validated endurance characteristics make it suitable for inverter, motor drive and rectifier applications operating in variable voltage environments.

Choose this part when you need a RoHS‑compliant, high‑voltage aluminum electrolytic capacitor with defined electrical limits and long‑term thermal endurance to support reliable operation in demanding power systems.

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