LQS2G471MELC35

The LQS2G471MELC35 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LQS series, rated at 470 µF and 400 V with a φ35 × 35 mm can. It is designed for high‑frequency regenerative voltage environments and general inverter applications where robust ripple handling and high‑temperature endurance are required.

Key value propositions include high ripple capability at both low and high frequencies, a wide operating temperature range to −25 °C to +105 °C, and proven long‑term endurance under rated conditions.

Key Features

• Capacitance & Voltage — 470 µF rated capacitance at 400 V nominal with ±20% tolerance, suitable for high‑voltage DC bus filtering and energy buffering.
• High‑temperature endurance — Rated for operation to +105 °C with a specified life of 3000 hours at 105 °C under rated conditions.
• Ripple current capability — Rated ripple current of 1.68 A at 120 Hz and 2.402 A at 50 kHz, supporting both low‑frequency and high‑frequency ripple environments.
• Charge‑discharge endurance — Evaluated for 50 million charge/discharge cycles (6 Hz, rated voltage + 0.35 V) with capacitance change within ±20% of initial value.
• Low‑temperature stability — Impedance stability characterized to −25 °C with Z(–25 °C)/Z(+20 °C) ≤ 8 for rated voltages 350–450 V.
• Electrical characteristics — Leakage current specified as I ≤ 3√(C·V) µA after 5 minutes at 20 °C; dissipation factor (tan δ) ≤ 0.15 for 400 V units at 120 Hz, 20 °C.
• Package & mounting — Radial can with snap‑in terminals for secure board mounting in high‑current, high‑vibration environments; nominal size φ35 × 35 mm.
• Polarized design & RoHS compliance — Polarized aluminum electrolytic capacitor manufactured in compliance with RoHS (2011/65/EU, (EU)2015/863).

Typical Applications

• Motor drives and inverters — Energy buffering and DC bus smoothing in AC servomotor and general inverter systems, including regenerative circuits.
• Regenerative power circuits — Handling high‑frequency regenerative voltages where robust charge/discharge endurance is required.
• Rectifier and voltage‑doubler circuits — Suitable for rectifier circuits including voltage doubler topologies that require high‑voltage capacitance.
• Industrial equipment in fluctuating voltage areas — Provides stable energy storage and ripple suppression where supply voltage varies.

Unique Advantages

• High ripple handling across frequencies — Specified ripple ratings at 120 Hz and 50 kHz let you design for both mains‑frequency and high‑frequency switching environments with confidence.
• Proven endurance under repetitive cycling — Validated for 50 million charge/discharge cycles, delivering predictable capacitance retention and leakage behavior after extensive cycling.
• Designed for elevated temperatures — 3000 hours at 105 °C life rating supports deployments in thermally demanding industrial applications.
• Clear electrical limits for design margin — Leakage current formula and dissipation factor limits provide quantifiable parameters for thermal and power‑loss budgeting.
• Secure snap‑in mounting — Radial snap‑in terminals provide mechanical stability for high‑vibration or high‑current board environments.
• Regulatory compliance — RoHS compliance supports use in designs targeting restricted‑substance requirements.

Why Choose LQS2G471MELC35?

The LQS2G471MELC35 targets power electronics designers who need a high‑voltage, high‑endurance electrolytic solution for regenerative, inverter, and rectifier applications. Its combination of 400 V rating, 470 µF capacitance, dual‑frequency ripple capability, and validated charge/discharge endurance makes it well suited to demanding industrial environments where temperature and cycling reliability matter.

Manufactured by Nichicon and compliant with RoHS, this snap‑in capacitor delivers predictable electrical limits and mechanical mounting suited to long‑running, high‑stress power systems, helping engineers specify a component with clear performance parameters for design validation.

Request a quote or submit a pricing inquiry for the LQS2G471MELC35 to receive availability and ordering information specific to your project requirements.