LGN2G391MELC30

The LGN2G391MELC30 is a snap‑in terminal aluminum electrolytic capacitor designed for general‑purpose power electronics where a 400 V, 390 µF solution is required. It combines a compact, snap‑in radial can package with high temperature endurance and specified ripple current performance for demanding thermal environments.

Targeted for general‑purpose applications, this part provides a balance of capacitance, voltage rating and long‑life performance while meeting RoHS requirements.

Key Features

• Capacitance and Voltage — 390 µF nominal capacitance at a 400 V rated voltage, with capacitance tolerance of ±20% (measured at 120 Hz, 20°C).
• High Temperature Endurance — Rated for operation up to 105°C and specified to withstand 3000 hours of rated ripple current at 105°C.
• Ripple Current Performance — Rated ripple current of 1.55 A at 120 Hz and 2.216 A at 100 kHz, supporting AC ripple handling across common power frequencies.
• Compact Snap‑In Package — Radial, can snap‑in mounting (snap‑in terminal type) in a smaller case size relative to the LGU series, with a size dimension of L: 3 × D: 3.5 cm and a seated height of 1.181 inch.
• Operating Range — Specified operating temperature range of −25°C to +105°C for the 400 V class.
• Reliability Characteristics — Meets endurance and shelf‑life performance limits defined for the LGN series: capacitance change within ±20%, tan δ within limits, and leakage current at or below initial specified values after endurance testing.
• Environmental Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• Power Supplies — Smoothing and bulk filtering in high‑voltage power supply rails where 400 V tolerance and elevated temperature endurance are required.
• Industrial Power Electronics — Energy storage and ripple suppression in industrial converters and inverters operating up to 105°C.
• General Purpose Electronic Equipment — Use in general‑purpose circuits requiring a polarized high‑voltage electrolytic capacitor with snap‑in mounting for secure PCB retention.

Unique Advantages

• Long High‑Temperature Life: Rated for 3000 hours at 105°C under rated ripple conditions, providing predictable service life in hot environments.
• Compact Footprint: One rank smaller case size than the LGU series and compact L × D dimensions (3 × 3.5 cm) help reduce board area in space‑constrained designs.
• Measurable Ripple Capability: Specified ripple current values at both low and high frequencies (1.55 A at 120 Hz; 2.216 A at 100 kHz) allow designers to match the part to expected operating conditions.
• High Voltage Handling: 400 V rating lets the part be used on higher DC rails without additional series components.
• RoHS Compliance: Conforms to RoHS directive requirements for regulatory compatibility in global markets.

Why Choose LGN2G391MELC30?

LGN2G391MELC30 is positioned for engineers needing a durable, high‑voltage electrolytic capacitor in a compact snap‑in package. Its combination of 400 V rating, 390 µF capacitance, specified ripple current performance and 3000‑hour endurance at 105°C makes it suitable for general‑purpose power electronics and industrial applications operating in elevated temperatures.

The part offers a straightforward integration path for designs that require reliable bulk capacitance with predictable thermal and ripple behavior, while also meeting RoHS environmental requirements.

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