LGL2W181MELA30

The LGL2W181MELA30 from Nichicon is an aluminum electrolytic capacitor in the LGL series featuring a snap‑in, radial can package optimized for compact, high‑voltage designs. It provides a polarized 180 µF capacitance at a 450 V rating with an operating temperature range of –25°C to +105°C.

Designed for general‑purpose power applications, this component delivers high‑voltage bulk capacitance with specified ripple current performance and defined endurance at elevated temperature, offering a clear specification set for engineers designing power circuits and PCB assemblies that require a robust snap‑in solution.

Key Features

• Capacitance & Voltage — 180 µF capacitance rated at 450 V for high‑voltage bulk energy storage in polarized circuits.
• High‑Temperature Performance — Rated for operation from –25°C to +105°C with endurance specified as 2000 hours at 105°C under D.C. bias plus rated ripple current.
• Snap‑In Radial Can Package — Snap‑in terminal (radial, can) mounting type for secure PCB retention and straightforward assembly in vertical configurations.
• Ripple Current Capability — Measured ripple current of 770 mA at 120 Hz and 1.101 A at 50 kHz, with frequency coefficients provided for scaling ripple performance across frequencies.
• Polarized Electrolytic Construction — Polarized device suitable for DC bulk and filtering duties; leakage current specification follows I ≤ 3√CV (μA) after voltage application.
• Electrical Stability — Capacitance tolerance ±20% at 120 Hz, 20°C; tan δ limits and low‑temperature impedance ratio are defined for predictable performance (tan δ max. 0.20 at 450 V; Z(–25°C)/Z(+20°C) ≤ 8).

Typical Applications

• General‑purpose power circuits — Provides high‑voltage bulk capacitance and ripple handling for power supply filter stages and DC bus smoothing in general electronic equipment.
• High‑temperature environments — Rated to +105°C with 2000 hours endurance at that temperature, suitable where elevated operating temperatures are expected.
• PCB snap‑in assemblies — Snap‑in radial can package enables reliable mechanical retention and ease of installation in through‑hole PCB layouts.

Unique Advantages

• High‑voltage capability: 450 V rating allows designers to specify a single component for higher‑voltage bulk storage without series stacking.
• Defined ripple performance: Published ripple current values at 120 Hz and 50 kHz (770 mA and 1.101 A respectively) and frequency coefficients allow predictable thermal and lifetime planning.
• Thermal endurance: 2000 hours at 105°C endurance rating provides a verifiable baseline for reliability planning in warm operating environments.
• Compact snap‑in form: Ultra‑smaller‑sized snap‑in can delivers high capacitance in a compact radial package for space‑constrained boards.
• Measured electrical limits: Clear leakage, tan δ, and low‑temperature impedance specifications support conservative design margins and compliance verification.

Why Choose LGL2W181MELA30?

The LGL2W181MELA30 combines 180 µF of capacitance at a 450 V rating with a snap‑in radial can package and a +105°C operating capability, delivering a well‑specified option for engineers needing high‑voltage bulk capacitance in a compact, through‑hole form factor. Its published ripple current, endurance, and electrical stability parameters make it suitable for general‑purpose power designs where verifiable performance and long‑term behavior under elevated temperatures are important.

Backed by Nichicon’s LGL series specifications, this part is aimed at designers and procurement teams seeking a clearly documented, high‑voltage electrolytic solution for PCB assemblies and power circuitry requiring polarized bulk capacitance and reliable thermal endurance.

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