LGM2W821MELC45

The LGM2W821MELC45 from Nichicon is an aluminum electrolytic, snap‑in terminal capacitor in the LGM series, offering 820 µF at 450 V in an ultra‑smaller snap‑in can. It is designed for general‑purpose power assemblies where high voltage, compact sizing and elevated operating temperature are required.

Built for equipment downsizing, this part delivers a high‑voltage capacitance solution with a 105°C rating, 2000 h endurance at 105°C under DC bias plus rated ripple, and RoHS compliance for modern production environments.

Key Features

• Capacitance & Voltage — 820 µF nominal capacitance rated at 450 V for high‑voltage energy storage and smoothing in power applications.
• Compact Snap‑In Package — Radial, can snap‑in terminal construction in an ultra‑smaller case (one rank smaller than LGL) to support equipment downsizing; physical size 35 × 45 mm (D × L).
• High Temperature Endurance — Rated operating temperature range −25°C to +105°C with an endurance specification of 2000 hours at 105°C when DC bias plus rated ripple current is applied.
• Ripple Current Capability — Rated ripple 1.6 A at 120 Hz (105°C); higher frequency ripple performance is supported (2.288 A at 50 kHz per part specification) with a frequency coefficient that rises to 1.43 at 50 kHz or more.
• Electrical Reliability Limits — Capacitance tolerance ±20% (at 120 Hz, 20°C), tan δ ≤ 0.20 (120 Hz, 20°C), and leakage current specified as I ≤ 3√CV (µA) after 5 minutes at 20°C.
• Polarized, PCB‑Ready Mounting — Polarized snap‑in terminal suitable for radial PCB mounting in power assemblies; terminals and PC‑board hole dimensions provided in the series documentation.
• Regulatory & Identification — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863) and marked with white print on a black sleeve for part identification.

Typical Applications

• General‑purpose power assemblies — Bulk energy storage and smoothing in equipment that requires a 450 V, 820 µF snap‑in capacitor rated to 105°C.
• Equipment downsizing projects — Applications where a smaller case than the LGL series enables reduced board footprint while maintaining high voltage capability.
• High‑temperature environments — Power modules and assemblies operating up to 105°C where 2000 h endurance under rated conditions is required.

Unique Advantages

• High‑voltage storage in a compact package: 450 V and 820 µF deliver substantial energy density while the LGM series one‑rank smaller case supports reduced enclosure and board space.
• Designed for elevated operating temperature: Rated to +105°C with a 2000‑hour endurance specification under DC bias plus rated ripple, supporting longer service life in hot environments.
• Measurable ripple handling: Rated ripple current of 1.6 A at 120 Hz (105°C) and specified higher‑frequency ripple values (2.288 A at 50 kHz) help designers size components against thermal stress and ripple heating.
• Clear electrical limits and test conditions: Leakage current defined by I ≤ 3√CV (µA) after 5 minutes at 20°C, tan δ ≤ 0.20, and ±20% capacitance tolerance provide verifiable parameters for design validation.
• RoHS compliant and traceable marking: Conforms to EU RoHS requirements and is printed in white on a black sleeve for easy identification during assembly and inspection.

Why Choose LGM2W821MELC45?

The LGM2W821MELC45 positions itself as a reliable, high‑voltage aluminum electrolytic solution for engineers needing 820 µF at 450 V in a reduced footprint. Its snap‑in radial can, 105°C rating, and 2000‑hour endurance under rated conditions make it suitable for demanding general‑purpose power assemblies where both space and thermal robustness matter.

This part is ideal for designers focused on equipment downsizing and long‑term operation under elevated temperatures, offering clear, tested electrical limits and RoHS compliance to support manufacturability and regulatory requirements.

Request a quote or contact sales to discuss availability, lead times, and how the LGM2W821MELC45 can fit into your power design requirements.