LGW2W221MELA45

The LGW2W221MELA45 is a 220 µF, 450 V snap‑in aluminum electrolytic capacitor from Nichicon’s LGW series. It is a snap‑in terminal radial can designed for general‑purpose power applications that require high voltage handling, elevated ripple current capability, and extended endurance at high temperature.

Key value propositions include high ripple current performance (both low and high frequency), long endurance at 105°C (3000 hours), low leakage current, and a compact φ25×45 mm package intended for secure mounting in power assemblies.

Key Features

• Rated Capacitance: 220 µF with ±20% tolerance at 120 Hz, 20°C, providing stable bulk capacitance for power systems.
• High Voltage Rating: 450 V rated voltage suited to high‑voltage power circuits within the LGW series range.
• Snap‑in Terminal, Radial Can: Snap‑in terminal type and radial can package for robust mechanical mounting in assemblies.
• High Ripple Current Capability: 1.55 A at 120 Hz and 2.216 A at 50 kHz frequency coefficients applied, supporting demanding AC ripple conditions.
• Low Leakage Current: 940 µA initial leakage current specification after voltage application at 20°C for reliable low‑loss operation.
• Loss Tangent (tan δ): 0.20 max at 20°C, 120 Hz, ensuring controlled dielectric loss at rated voltage.
• Wide Operating Temperature: −25°C to +105°C for 400–450 V parts, enabling use in elevated ambient conditions.
• Long Endurance: Rated for 3000 hours at 105°C with D.C. bias plus rated ripple current, meeting the LGW series endurance requirements.
• RoHS Compliant: Manufactured in compliance with RoHS directive requirements.
• Compact Footprint: Size φ25×45 mm (L: 4.5 × D: 2.5 cm) for space‑conscious power designs.

Typical Applications

• High‑voltage power supplies: Bulk smoothing and decoupling in 400–450 V rails where a 450 V rating and high ripple current capability are required.
• Industrial power equipment: Energy storage and ripple absorption in converters and rectifier outputs subject to elevated ambient temperatures.
• Power conversion modules: DC link and filter capacitor for systems that need long endurance at 105°C and secure snap‑in mounting.

Unique Advantages

• High ripple handling: Specified ripple currents at both low and high frequencies reduce temperature rise and help maintain performance under AC stress.
• Extended high‑temperature life: 3000 hours endurance at 105°C with rated ripple current supports longer service intervals in demanding environments.
• 450 V rating for high‑voltage designs: Enables deployment in circuits that require higher DC voltage margins without oversizing the capacitor.
• Snap‑in radial can construction: Provides mechanically secure mounting for power assemblies and simplifies placement in chassis or PCB fixtures.
• Measured low leakage and controlled dissipation: 940 µA leakage and tan δ limit of 0.20 at 120 Hz help minimize losses and maintain efficiency.
• RoHS compliance: Meets environmental regulatory requirements for restricted substances.

Why Choose LGW2W221MELA45?

The LGW2W221MELA45 positions itself as a practical choice for engineers designing high‑voltage, high‑ripple power systems that require reliable long‑term operation at elevated temperatures. Its combination of a 450 V rating, substantial ripple current capability, low leakage, and a 3000‑hour 105°C endurance profile makes it appropriate for general‑purpose industrial and power conversion applications.

Designers needing a compact φ25×45 mm snap‑in capacitor with verifiable specifications for capacitance, ripple, leakage, and temperature endurance will find this Nichicon LGW series part suitable for robust, long‑lived power designs.

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