LGN2W181MELB30

The LGN2W181MELB30 is a Nichicon LGN series aluminum electrolytic capacitor in a snap‑in radial can package intended for general‑purpose electronic equipment. It delivers 180 µF capacitance at a 450 V rating with polarized construction and is designed for sustained operation to 105°C.

This part targets power electronics and general‑purpose applications that require high‑voltage bulk capacitance, robust ripple handling, and long endurance under elevated temperature conditions.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance rated at 450 V with a tolerance of ±20% at 120 Hz, 20°C.
• High‑Temperature Endurance — Rated for operation to 105°C and specified to withstand 3000 hours of DC bias plus rated ripple current at 105°C (endurance condition per LGN series).
• Ripple Current Performance — Rated ripple current capability of 870 mA at 120 Hz and 1.244 A at 100 kHz, supporting effective AC filtering and smoothing under load.
• Package & Mounting — Snap‑in terminal, radial can construction for secure PCB mounting; compact dimensions approximately L: 3 cm × D: 3 cm with a seated height maximum of 1.181 inch.
• Polarized Electrolytic — Designed as a polarized capacitor for DC applications requiring bulk capacitance.
• RoHS Compliant — Conforms to the RoHS directives (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑purpose power supplies — Bulk energy storage and smoothing for high‑voltage rails in general electronic equipment.
• Power conversion modules — Filtering and ripple suppression in inverters, converters, and related power conversion assemblies.
• Industrial control equipment — High‑voltage bulk capacitance for controllers and industrial power subsystems operating at elevated temperatures.
• Energy filtering — AC ripple suppression and DC bus stabilization in systems requiring sustained ripple handling at 105°C.

Unique Advantages

• Long high‑temperature endurance: Specified to endure 3000 hours at 105°C with rated ripple current, providing predictable lifetime behavior under elevated thermal stress.
• High voltage capability: 450 V rating enables use on higher DC rails without series stacking for many designs.
• Compact, snap‑in package: One rank smaller case than LGU and a snap‑in radial can reduce assembled footprint while enabling secure PCB mounting.
• Strong ripple handling: Defined ripple current values at both 120 Hz and 100 kHz support performance across common power frequencies and switching conditions.
• RoHS compliance: Meets applicable RoHS directive requirements for restricted substances.

Why Choose LGN2W181MELB30?

The LGN2W181MELB30 positions itself as a durable, high‑voltage bulk capacitor for general‑purpose power electronics where long endurance at elevated temperature and reliable ripple handling are required. Its snap‑in radial can and one‑rank smaller case size (relative to LGU) balance board‑level mounting robustness with a compact footprint.

This part is well suited to engineers specifying high‑voltage DC bulk capacitance in power supplies, converters, and industrial equipment that operate up to 105°C and require quantified ripple current capability and a predictable endurance specification.

Request a quote or submit an inquiry to receive pricing and availability information for the LGN2W181MELB30 and to discuss your application requirements.