LGN2E391MELA30

The LGN2E391MELA30 is a 390 µF, 250 V aluminum electrolytic capacitor in a snap-in (radial can) package designed for general-purpose power applications. It features a smaller-sized snap-in (snailer) case and is engineered for sustained operation up to 105°C with extended ripple endurance.

This part targets designs that require bulk energy storage, ripple smoothing and robust thermal endurance in a compact snap-in form factor, while meeting RoHS environmental requirements.

Key Features

• Capacitance and Voltage — 390 µF rated capacitance at 250 V for bulk energy storage and DC link applications.
• High Temperature Endurance — Rated for operation from −40°C to 105°C and specified endurance of 3000 hours at 105°C when subjected to D.C. bias plus rated ripple current.
• Ripple Current Performance — Designed to withstand rated ripple: 1.3 A at 120 Hz (low frequency) and 1.95 A at 100 kHz (high frequency), supporting both mains-frequency filtering and higher-frequency switching environments.
• Compact Snap-in Package — Radial, can snap-in mounting with a smaller-sized snailer case (one rank smaller than LGU), enabling higher board density and secure mechanical retention.
• Polarized, General-Purpose Use — Polarized electrolytic construction with ±20% capacitance tolerance for standard power-electronic designs.
• RoHS Compliant — Conforms to RoHS directive (2011/65/EU,(EU)2015/863).

Typical Applications

• Power supply filtering — Bulk smoothing and ripple reduction in high-voltage DC power supplies up to 250 V, leveraging the 390 µF capacitance and rated ripple capability.
• DC link / energy storage — Energy buffering in converters and inverters where a compact snap-in can and 3000-hour 105°C endurance improve reliability under sustained load.
• Industrial control equipment — Support for power conditioning and transient suppression in industrial systems that operate at elevated temperatures up to 105°C.

Unique Advantages

• Extended high-temperature endurance: 3000 hours at 105°C under rated ripple and DC bias, providing predictable aging and long-term service life in hot environments.
• Dual-frequency ripple capability: Specified ripple current at 120 Hz and 100 kHz enables use with both line-frequency filtering and high-frequency switch-mode supplies.
• Space-efficient snap-in form: Smaller-sized snailer case (one rank smaller than LGU) reduces board footprint while maintaining snap-in mechanical stability.
• Clear specification set: Polarized 390 µF / 250 V rating with ±20% tolerance simplifies selection for designers balancing capacitance, voltage and size.
• Regulatory compliance: RoHS conformity supports environmentally regulated designs and procurement requirements.

Why Choose LGN2E391MELA30?

LGN2E391MELA30 combines a high-voltage 390 µF electrolytic element with a compact snap-in can and validated endurance at 105°C, making it a practical choice for engineers who need reliable bulk capacitance in thermally demanding power applications. Its specified ripple performance at both mains and switching frequencies and reduced case size help optimize board layout without sacrificing longevity.

This part is suited to designers of industrial power supplies, DC-link stages of converters, and other general-purpose power systems that require a RoHS-compliant, high-temperature-capable electrolytic solution with secure snap-in mounting.

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