LGY2A821MELA25

The LGY2A821MELA25 is an aluminum electrolytic, snap-in terminal capacitor from Nichicon’s LGY long-life series. Engineered for demanding industrial environments, it combines a 100 V rating with 820 µF capacitance in a compact 25 mm × 25 mm radial can.

Designed for applications that require sustained ripple handling and long endurance, this part offers high ripple current capability, low loss (tanδ 0.20 at 20°C/120 Hz), RoHS compliance and a 5000-hour life rating at 105°C—making it suitable for industrial power supplies and ballast applications.

Key Features

• Capacitance & Voltage — 820 µF rated capacitance at 100 V for bulk energy storage and smoothing in high-voltage DC circuits.
• High Ripple Capability — Handles 1.3 A at 120 Hz and 1.495 A at 50 kHz, enabling robust performance in power supply filtering and switching environments.
• Long-Life, High-Temperature Rating — Specified for operation from −40°C to +105°C with an endurance of 5000 hours at 105°C under rated ripple and DC bias.
• Low Loss (tanδ) — tanδ = 0.20 (measured at 20°C, 120 Hz) to reduce heating and loss in AC/ripple conditions.
• Low Leakage Current — Typical leakage current specified at 850 µA for stable DC performance after application of rated voltage.
• Snap-In Radial Can — Snap-in terminal mounting for secure mechanical retention and straightforward board-level installation; package dimension 25 mm × 25 mm.
• Compliance & Availability — RoHS compliant, tray packing, and available in mass production quantities.

Typical Applications

• Industrial Power Supplies — Bulk filtering and smoothing for high-voltage rails, where high ripple current capability and long endurance at 105°C are required.
• Ballasts — Energy storage and ripple handling in lamp ballast circuits, leveraging the LGY series’ long-life assurance.
• Power Conversion — DC link and output filter duties in converters and inverters that demand a 100 V rating and high-frequency ripple tolerance.

Unique Advantages

• High-voltage support: 100 V rating enables use in higher DC bus and intermediate circuits without up-rating multiple components.
• Proven long-life design: 5000-hour endurance at 105°C provides predictable lifetime performance for industrial applications.
• Robust ripple performance: Specified ripple currents at both low and high frequencies reduce the need for parallel capacitors to share ripple stress.
• Compact snap-in package: 25 mm × 25 mm radial can with snap-in terminals offers a space-efficient solution with strong mechanical retention.
• Production-ready logistics: Tray packing and mass production status simplify procurement and assembly planning for volume designs.
• Regulatory compliance: RoHS compliant to support regulatory requirements for lead-free assemblies.

Why Choose LGY2A821MELA25?

The LGY2A821MELA25 balances high-capacitance energy storage, a 100 V rating and proven long-life performance in a compact snap-in package—making it well suited to industrial power supplies, ballast designs and other high-demand power electronics. Its specified ripple current capabilities and low loss characteristics support reliable operation under sustained AC ripple and elevated temperature conditions.

Manufactured as part of Nichicon’s LGY long-life assurance series and available in tray packaging for mass production, this capacitor offers a dependable, readily sourced option for engineers needing stable DC filtering, bulk smoothing and long-term field reliability.

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