LGM2W181MELA25

The LGM2W181MELA25 is a snap‑in terminal aluminum electrolytic capacitor in Nichicon’s LGM series, designed for compact, high‑voltage power applications. It delivers 180 µF at 450 V in an ultra‑smaller-sized snap‑in can that is one rank smaller than the LGL series, making it suitable for equipment downsizing and space‑constrained power modules.

Built for general‑purpose power use, this polarized capacitor supports operation from −25°C to +105°C, with endurance rated at 2000 hours at 105°C under DC bias plus rated ripple current.

Key Features

• Package & Mounting — Snap‑in radial can package optimized for secure board mounting and compact layouts; physical size φ25 × 25 mm to support equipment downsizing.
• Capacitance & Voltage — 180 µF rated capacitance at 450 V, with capacitance tolerance of ±20% (measured at 120 Hz, 20°C).
• Temperature & Reliability — Rated operating range −25°C to +105°C with an endurance specification of 2000 hours at 105°C when subjected to DC bias plus rated ripple current.
• Ripple Handling — Rated ripple current 470 mA (mArms) at 120 Hz, with higher‑frequency capability indicated by measured ripple current values (e.g., 672.1 mA at 50 kHz).
• Leakage and Loss Characteristics — Leakage current defined by I ≤ 3√CV (µA) after 5 minutes at 20°C; tangent of loss angle (tan δ) ≤ 0.20 at 120 Hz, 20°C.
• RoHS Compliance — Compliant to the RoHS directive (2011/65/EU, (EU)2015/863), supporting regulatory requirements for many commercial and industrial products.

Typical Applications

• Compact power supplies — Bulk smoothing and energy storage in space‑constrained AC/DC and DC/DC supplies where a 450 V rating and reduced case size are required.
• Industrial equipment — General‑purpose filtering in industrial power modules that must operate up to 105°C and withstand rated ripple current over long endurance cycles.
• Equipment downsizing projects — Replacement or redesign scenarios that demand a smaller case than the LGL series while retaining high voltage capability.

Unique Advantages

• Smaller footprint for downsized designs — One rank smaller case than LGL and a compact φ25 × 25 mm package help reduce PCB area without lowering voltage rating.
• High voltage capability — 450 V rating enables use in high‑voltage power rails and bulk energy storage applications.
• High‑temperature endurance — Designed to meet endurance criteria after 2000 hours at 105°C under rated conditions, supporting reliability in elevated ambient environments.
• Predictable ripple performance — Specified ripple current at 120 Hz (470 mArms) and documented higher‑frequency ripple values provide designable thermal and lifetime behavior.
• Controlled leakage and loss — Leakage current limited by I ≤ 3√CV and tan δ specified to 0.20 max at 120 Hz, aiding predictable circuit behavior.
• Regulatory readiness — RoHS compliance reduces material‑related compliance work for commercial and industrial product lines.

Why Choose LGM2W181MELA25?

The LGM2W181MELA25 combines a high 450 V rating and 180 µF capacitance with an ultra‑smaller snap‑in package to address space‑constrained power designs without sacrificing endurance or ripple capability. Its specified performance across −25°C to +105°C and 2000‑hour endurance at 105°C make it appropriate for general‑purpose power filtering in compact equipment where thermal and ripple stresses are a design consideration.

This part is suitable for engineers and procurement teams looking to reduce PCB footprint while maintaining robust voltage and lifetime characteristics, backed by the documented specifications of Nichicon’s LGM series and RoHS compliance for regulatory alignment.

Request a quote or submit a pricing inquiry today to evaluate LGM2W181MELA25 for your compact high‑voltage power designs.