LGU2G221MELA

The LGU2G221MELA is an aluminum electrolytic capacitor from Nichicon's LGU series featuring a snap‑in radial can termination. It provides 220 µF capacitance at a 400 V rating with ±20% tolerance, designed for general‑purpose power applications requiring high voltage, long endurance and robust ripple handling.

Key value propositions include high-voltage capability, long endurance at elevated temperature, and a compact snap‑in package (φ25×40 mm) suitable for equipment-level bulk filtering and energy storage. The part is RoHS compliant and is in mass production with tray packing.

Key Features

• Capacitance & tolerance — 220 µF with ±20% tolerance at 120 Hz, 20°C providing stable bulk capacitance for filtering and smoothing.
• High voltage rating — 400 V rated voltage for high‑voltage DC applications and energy storage within power subsystems.
• Ripple current capability — Rated ripple current of 1.1 A at 120 Hz (low frequency) and 1.573 A at 50 kHz (high frequency) to support sustained AC ripple conditions.
• Low leakage — Specified leakage current of 880 µA after voltage application at 20°C for controlled standby loss and predictable bias behavior.
• Endurance at elevated temperature — Designed to withstand 3000 hours of rated ripple current at 105°C, meeting long‑life requirements under sustained thermal stress.
• Operating temperature range — −25°C to +105°C suitable for a wide range of industrial and commercial environments.
• Snap‑in radial can package — φ25×40 mm (L: 4 × D: 2.5 cm) snap‑in mounting for secure board retention and straightforward mechanical assembly.
• Environmental compliance & supply — RoHS compliant; available in tray packing and currently in mass production.

Typical Applications

• Power supplies — Bulk filtering and smoothing in high‑voltage AC/DC and DC/DC power supplies where 400 V rating and high ripple current capability are required.
• Industrial equipment — DC link and energy storage in industrial power conversion and control systems that need long endurance at elevated temperatures.
• General‑purpose high‑voltage electronics — Systems requiring polarized high‑voltage capacitors with snap‑in mounting for reliable board‑level installation and maintenance.

Unique Advantages

• High-voltage support: 400 V rating enables use in high‑voltage DC rails and energy storage applications without additional series stacking.
• Proven ripple performance: Defined ripple current ratings at both low (1.1 A at 120 Hz) and high frequency (1.573 A at 50 kHz) provide predictable thermal and electrical behavior under AC stress.
• Extended high‑temperature life: 3000 hours endurance at 105°C under rated ripple current offers long service life in thermally demanding installations.
• Compact, secure mounting: Snap‑in radial can (φ25×40 mm) simplifies mechanical retention for cabinet‑level and chassis assemblies.
• Controlled leakage: 880 µA leakage current specification supports predictable biasing and power management in idle conditions.
• Regulatory compliance and production readiness: RoHS compliant and in mass production with tray packing for consistent supply and assembly integration.

Why Choose LGU2G221MELA?

LGU2G221MELA combines a high 400 V rating and substantial capacitance (220 µF) with defined ripple handling and long endurance at 105°C, making it well suited to engineering designs that demand reliable bulk energy storage and filtering under thermal and ripple stress. The snap‑in radial package and tray packing support efficient assembly and secure board mounting.

This part is appropriate for engineers and procurement teams building industrial power supplies, high‑voltage electronic equipment, and other general‑purpose systems that require verified performance, environmental compliance, and production availability.

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