LGW2G561MELC45

The LGW2G561MELC45 is an aluminum electrolytic, snap‑in terminal capacitor from Nichicon’s LGW series designed for high ripple current environments. This radial can, polarized capacitor is rated 560 µF at 400 V and built for continuous operation up to 105°C.

It targets general‑purpose power electronics where robust ripple handling and long endurance at elevated temperature are required, delivering stable capacitance and controlled loss characteristics for power filtering, bulk energy storage and DC bus applications.

Key Features

• High ripple current capability — Designed for elevated ripple load; specified ripple currents include 3.18 A at 120 Hz and 4.547 A at 50 kHz for this part.
• 105°C endurance — Meets series endurance requirements when subjected to rated DC bias plus rated ripple current for 3000 hours at 105°C; capacitance change remains within ±20% after the test.
• Rated performance — 560 µF capacitance with ±20% tolerance and 400 V rated voltage suitable for high‑voltage DC bus applications.
• Snap‑in radial can package — Snap‑in terminal mounting for secure PCB retention in power assemblies; package listed as radial, can – snap‑in.
• Wide operating temperature — Specified for operation from –25°C to +105°C for the 400 V class, enabling use in elevated ambient conditions.
• Leakage current guideline — Series leakage current specification: I ≤ 3√(C·V) µA (after 5 minutes at 20°C), providing a measurable baseline for design verification.
• RoHS compliant — Conforms to RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Power supply bulk filtering — Smooths DC bus voltage and stores energy in high‑voltage power supplies and converters where high ripple currents occur.
• Motor drives and inverters — Provides bulk capacitance and ripple handling for DC link circuits in drive electronics.
• Industrial power electronics — Suited for general‑purpose industrial applications requiring long endurance at elevated temperature and high ripple tolerance.

Unique Advantages

• Validated high‑temperature endurance: Endurance tested for 3000 hours at 105°C under rated ripple, ensuring predictable ageing behavior in hot environments.
• Frequency‑responsive ripple performance: Specified ripple currents at both low (120 Hz) and high (50 kHz) frequencies to help predict thermal and electrical behavior across switching applications.
• Robust mounting: Snap‑in terminal design offers reliable PCB retention for power module assemblies and simplifies mechanical integration.
• Clear electrical rating: 400 V and 560 µF with ±20% tolerance—enables straightforward selection for DC bus and high‑voltage filtering tasks.
• Regulatory compliance: RoHS conformity supports designs targeting restricted‑substance requirements.

Why Choose LGW2G561MELC45?

The LGW2G561MELC45 combines high capacitance (560 µF) and a 400 V rating in a snap‑in radial can optimized for high ripple current and extended operation at 105°C. Its endurance characterization (3000 hours at 105°C under rated ripple) and explicit ripple current specifications provide the data engineers need to assess lifetime and thermal margins in power electronics designs.

This part is well suited for designers of power supplies, inverters and industrial converters who require a durable, RoHS‑compliant electrolytic solution with reliable PCB mounting and verifiable performance under elevated temperature and ripple conditions.

Request a quote or submit an inquiry to receive pricing, availability and application support for the LGW2G561MELC45. Our team can provide order and lead‑time information to help with your design planning.