LGR2W221MELC40

The LGR2W221MELC40 from Nichicon is a snap-in terminal aluminum electrolytic capacitor with a rated capacitance of 220 µF and a rated voltage of 450 V. It is part of the LGR long-life series designed for general-purpose power applications that require high-voltage filtering and energy storage.

This capacitor is specified for extended operation at elevated temperatures, offering 10,000 hours endurance at 105°C under rated ripple current, and is RoHS compliant.

Key Features

• Capacitance and Voltage: 220 µF nominal capacitance with a 450 V rated voltage for high-voltage DC filtering and energy storage.
• Long-Life, High-Temperature Endurance: Rated for 10,000 hours of ripple current application at 105°C as part of the LGR long-life series, supporting sustained operation in hot environments.
• Snap-In Mounting: Radial can with snap-in terminals for secure board retention and ease of assembly in power-electronics configurations.
• Operating Temperature Range: Specified for operation from −25°C to +105°C to accommodate elevated-temperature system requirements.
• Ripple Current Capability: Rated ripple currents of 1 A at 120 Hz and 1.43 A at 50 kHz, with frequency coefficients provided in the series datasheet to calculate ripple performance across frequencies.
• Leakage Current Specification: Leakage current defined by the datasheet as I ≤ 3√(C·V) (μA) after 5 minutes at 20°C, enabling predictable standby loss characteristics.
• Tolerance and Polarization: Capacitance tolerance of −20% to +20% and polarized construction typical of aluminum electrolytic technology.
• Physical Size: Radial can snap-in package with dimensions approximately L: 4 × D: 3.5 cm and a maximum seated height of 1.575 inches.
• Regulatory Compliance: Compliant with RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Power Supplies and Converters: Provides bulk filtering and energy storage for high-voltage DC rails, improving ripple suppression and stability.
• Industrial Power Systems: Suited for general-purpose industrial equipment that requires long-life capacitors rated for extended high-temperature operation.
• High-Voltage Smoothing: Used where 450 V rating and substantial capacitance are needed for smoothing DC outputs and absorbing transient energy.

Unique Advantages

• Proven Long-Life Endurance: 10,000-hour ripple-current endurance at 105°C reduces the frequency of service or replacement in high-temperature installations.
• High-Voltage Capability: 450 V rating enables use on higher DC bus voltages without series stacking, simplifying design.
• Predictable Ripple Performance: Manufacturer-specified ripple current values at 120 Hz and 50 kHz, plus frequency coefficients in the datasheet, allow accurate thermal and lifetime calculations.
• Secure Snap-In Mounting: Snap-in terminals provide robust mechanical retention for assemblies exposed to vibration or handling during manufacturing.
• Measured Leakage Specification: Leakage current defined by a clear formula (I ≤ 3√CV), supporting power-loss budgeting and standby current estimates.
• RoHS Compliant: Meets RoHS directives for environmental regulatory requirements.

Why Choose LGR2W221MELC40?

The LGR2W221MELC40 is positioned for designers who need a high-voltage, long-life aluminum electrolytic capacitor with snap-in mounting and clearly defined ripple and leakage specifications. Its 450 V rating, 220 µF capacitance, and 10,000-hour endurance at 105°C make it suitable for general-purpose power-electronics designs that must balance energy storage, thermal endurance, and predictable electrical behavior.

Backed by Nichicon's LGR series specifications and RoHS compliance, this capacitor provides a component-level solution for robust, maintainable designs where long-term performance and regulatory adherence are required.

If you would like pricing, availability, or a formal quote for LGR2W221MELC40, please request a quote or contact sales to submit your requirements and receive assistance.