LQS2V271MELA35

The LQS2V271MELA35 is an aluminum electrolytic capacitor in a snap‑in terminal radial can, engineered for high‑speed charge–discharge applications. It delivers 270 µF at 350 V with a wide operating temperature range and qualifications suited to demanding power electronics environments.

Designed for use in high‑frequency regenerative circuits, general inverters and equipment operating in voltage‑fluctuating areas, this RoHS‑compliant part balances high ripple handling, cycle endurance and elevated temperature life for reliable system performance.

Key Features

• Snap‑in terminal / Radial can Snap‑in mounting type in a radial can package for secure mechanical retention on power electronics boards.
• Capacitance & rated voltage 270 µF nominal capacitance at 350 V with ±20% tolerance (measured at 120 Hz, 20°C).
• High operating temperature Rated for –25°C to +105°C with a specified lifetime of 3000 hours at 105°C under rated conditions.
• High‑speed charge–discharge endurance Endurance verified after 50 million charge–discharge cycles (rated voltage +0.35 V, 6 Hz); capacitance change remains within ±20% and tan δ within specified limits.
• Ripple current capability Rated ripple current: 1.1 A at 120 Hz and 1.573 A at 50 kHz, supporting substantial AC ripple in power conversion circuits.
• Leakage current specification Leakage current I ≤ 3√(C·V) µA after 5 minutes at 20°C (C: µF, V: V), providing predictable leakage behavior for design margins.
• Low‑temperature impedance stability Impedance ratio Z(–25°C)/Z(+20°C) up to 8 for the 350–450 V range, aiding performance across the rated temperature span.
• Regulatory compliance Conforms to 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 drives.
• General inverter systems — Provides bulk energy storage and ripple management for inverter input/output stages.
• Equipment in voltage‑fluctuating areas — Designed to tolerate fluctuating line conditions while maintaining capacitance and leakage limits.
• Rectifier / voltage doubler circuits — Suitable for rectifier circuits including voltage doubler topologies where stable high‑voltage capacitance is required.
• General power electronics — Use as a polarized smoothing/bulk capacitor where high temperature life and ripple capability are required.

Unique Advantages

• Engineered for fast charge–discharge: The LQS series is specified for high‑speed charge–discharge endurance, useful in regenerative and cycling power applications.
• High thermal reliability: 105°C rated operation and 3000 hours life at 105°C support sustained performance in hot environments.
• Measurable ripple performance: Defined ripple current ratings at both low and high frequencies enable predictable thermal and electrical design margins.
• Quantified endurance limits: Endurance and cycling tests tied to clear pass criteria (capacitance, tan δ, leakage) reduce risk during system validation.
• Predictable leakage behavior: Leakage current defined by I ≤ 3√(C·V) after stabilization provides a calculable parameter for power loss budgets.
• RoHS compliance: Meets current RoHS requirements for environmentally constrained designs.

Why Choose LQS2V271MELA35?

The LQS2V271MELA35 positions itself as a purpose‑built electrolytic solution for demanding power electronics designs that require high‑voltage bulk capacitance, robust ripple handling, and verified charge–discharge endurance. With a 350 V rating, 105°C operation, and specific ripple and cycle endurance data, it is well suited to inverter, servo drive and rectifier designs operating in fluctuating voltage environments.

Engineers and procurement teams benefit from clear, test‑based specifications—capacitance and tolerance, leakage formula, ripple current ratings, and long‑term life data—allowing confident system sizing and lifecycle planning for industrial and regenerative power systems.

Request a quote or submit a project inquiry to our sales team to evaluate LQS2V271MELA35 for your next power electronics design.