LGL2G821MELB50

The LGL2G821MELB50 from Nichicon is an aluminum electrolytic capacitor in the LGL series, designed as a snap-in terminal type with an ultra-smaller-sized profile for general-purpose applications. It delivers 820 µF capacitance at a 400 V rating and is specified for continuous operation up to 105°C.

Engineered for power-oriented designs that require bulk capacitance at high voltage and elevated temperature, this capacitor offers defined endurance and ripple-handling characteristics suitable for a wide range of general-purpose power electronics roles.

Key Features

• Capacitance & Voltage — 820 µF capacitance rated for 400 V operation, providing substantial energy storage for high-voltage circuits.
• High-Temperature Operation — Rated for operation from –25°C to +105°C, enabling use in elevated-temperature environments.
• Endurance — Qualified for 2000 hours at 105°C with D.C. bias plus rated ripple current applied (peak voltage must not exceed rated voltage), with capacitance change within ±20% after endurance testing.
• Ripple Performance — Rated ripple current: 1.92 A at 120 Hz and 2.746 A at 50 kHz, supporting AC ripple handling across low and high frequencies.
• Leakage Current Specification — Leakage current limited by I ≤ 3√CV (µA) after 5 minutes’ application of rated voltage at 20°C, providing a measurable leakage ceiling for design verification.
• Electrical Losses and Low-Temperature Stability — tan δ (max.) 0.15 at 400 V (measured at 120 Hz, 20°C); impedance ratio Z(–25°C)/Z(+20°C) ≤ 8, indicating predictable ESR/impedance behavior across temperature.
• Package & Mounting — Radial can with snap-in terminals for robust chassis or PCB mounting in power assemblies; compact size: approximately 5 cm (length) × 3 cm (diameter).
• Polarized Design — Polarized aluminum electrolytic construction for DC applications requiring polarity-aware bulk capacitance.

Typical Applications

• General Purpose — Power filtering and smoothing — Use where 820 µF at 400 V and defined ripple handling are required to stabilize DC rails and filter supply noise.
• General Purpose — DC link or energy buffering — Suitable for applications needing bulk capacitance at high voltage and elevated operating temperature up to 105°C.
• General Purpose — High-temperature environments — Designed for continued operation and specified endurance under thermal stress conditions up to 105°C.

Unique Advantages

• High-voltage bulk capacitance: 820 µF at 400 V gives designers substantial stored energy in a compact, snap-in package.
• Elevated temperature rating: 105°C maximum operating temperature with a 2000-hour endurance specification supports reliable performance in hot operating environments.
• Measured ripple capabilities: Specified ripple currents at both 120 Hz and 50 kHz let designers plan for low- and high-frequency ripple stress with quantifiable limits.
• Predictable leakage and loss behavior: Leakage current defined by I ≤ 3√CV and tan δ limits provide verifiable electrical boundaries for system-level power budgeting and thermal planning.
• Snap-in radial package: Robust mechanical mounting suitable for power assemblies where secure terminal retention and compact footprint are required.

Why Choose LGL2G821MELB50?

The LGL2G821MELB50 balances high-voltage capability (400 V) with substantial capacitance (820 µF) and a 105°C temperature rating, making it a pragmatic choice for designers seeking reliable bulk capacitance in general-purpose power applications. Its snap-in radial package and specified ripple/ leakage characteristics simplify integration into power supply and energy-buffering designs.

This part is ideal for engineers and procurement teams targeting proven endurance (2000 hours at 105°C under rated conditions) and verifiable electrical limits (leakage, tan δ, impedance stability). Choosing the LGL2G821MELB50 supports predictable long-term behavior in elevated-temperature power assemblies and general-purpose equipment.

For pricing, availability, or to request a formal quote, please submit a request to our sales team or request a quotation through the appropriate channels. Our technical staff can provide additional application details, lead times, and order support.