LGX2G181MELB25

The LGX2G181MELB25 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGX series, designed for board‑level power applications. It delivers 180 µF at 400 V in a compact, smaller‑sized snap‑in can package suitable for high‑stress power circuits.

Engineered for long life and high‑temperature operation, this capacitor withstands 5000 hours of rated ripple current at 105°C and is RoHS compliant. It is well suited for rectifier circuits in general inverters and switching power supplies, and other general‑purpose power applications.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance with a 400 V rated voltage for high‑voltage power stages and rectifier circuits.
• Snap‑in Mounting, Radial Can Package — Snap‑in terminal design and radial can package provide secure board retention and simplified mechanical mounting.
• High‑Temperature Long Life — Long life assurance with the ability to withstand rated ripple current for 5000 hours at 105°C, maintaining performance under extended thermal stress.
• Operating Range — Specified to operate from −25°C to +105°C to cover a wide range of industrial and power electronics environments.
• Ripple Current Performance — Rated ripple current of 1.02 A at 120 Hz and 1.459 A at 50 kHz for filtering and smoothing under AC ripple conditions.
• Tolerance & Polarization — Capacitance tolerance of −20% to +20% and polarized construction; suitable where polarized electrolytic capacitors are required.
• RoHS Compliance — Conforms to RoHS directives (2011/65/EU, (EU)2015/863), meeting lead‑free environmental requirements.
• Compact Dimensions — Smaller‑sized footprint with dimensions L: 2.5 × D: 3 cm and seated height information for space‑constrained designs.

Typical Applications

• Rectifier Circuits (Inverters) — Provides bulk capacitance and ripple handling for rectifier and DC link stages in general inverter designs.
• Switching Power Supplies — Used for smoothing and energy storage on output and intermediate rails in switching power converters.
• General Purpose Power Electronics — Suitable for a variety of board‑level power filtering tasks where polarized electrolytic capacitors are required.

Unique Advantages

• Extended High‑Temperature Endurance: Rated for 5000 hours at 105°C under rated ripple current, supporting long service life in thermally demanding power systems.
• High Voltage Handling: 400 V rating enables use in higher‑voltage rectifier and DC link applications without needing multiple capacitors in series.
• Practical Ripple Performance: Specified ripple currents at both low (120 Hz) and higher (50 kHz) frequencies allow predictable thermal and electrical design margins.
• Compact Snap‑in Format: Snap‑in, radial can package offers secure mechanical mounting and a reduced board footprint for dense power assemblies.
• Industry‑Ready Compliance: RoHS compliance supports environmental requirements for commercial and industrial product lines.

Why Choose LGX2G181MELB25?

LGX2G181MELB25 combines a compact snap‑in can package with robust electrical performance—180 µF at 400 V—and high‑temperature longevity. Its 5000‑hour endurance at 105°C and defined ripple current ratings make it a practical choice for power designers who need reliable bulk capacitance and predictable aging behavior in inverter and switching supply circuits.

This part is ideal for engineers and procurement teams building or supporting industrial and general‑purpose power electronics where long life, mechanical stability, and RoHS compliance are required. The LGX series pedigree provides clear specifications for end‑of‑life and shelf‑life behavior, helping reduce design iterations and supporting predictable system reliability.

Request a quote or submit an RFQ to receive pricing, availability, and lead‑time details for the LGX2G181MELB25.