LGJ2G181MELC20

The LGJ2G181MELC20 from Nichicon is a snap‑in terminal aluminum electrolytic capacitor in the LGJ series, designed for general‑purpose power applications. It combines a 400 V rated voltage with 180 µF capacitance in a low‑profile, radial snap‑in can suited for systems that require high ripple tolerance and elevated operating temperature.

Key value propositions include a 105°C rated temperature, a 3000‑hour endurance at 105°C, and defined ripple and leakage characteristics that support robust power filtering and energy storage tasks in industrial and commercial designs.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance at a 400 V rated voltage, with ±20% tolerance (measured at 120 Hz, 20°C).
• High Temperature Endurance — Rated for operation up to 105°C with a specified life of 3000 hours at 105°C, supporting elevated‑temperature deployment.
• Snap‑In Radial Package — Radial, can‑style snap‑in mounting for secure chassis or PCB power module assembly; tray packing for volume production handling.
• Ripple Handling — Low‑frequency ripple current of 1.160 A at 120 Hz and high‑frequency ripple current of 1.659 A at 50 kHz, enabling effective filtering under AC and switching load conditions.
• Loss & Leakage — Maximum tanδ of 0.15 (measured at 20°C, 120 Hz) and a specified leakage current of 800 µA, providing predictable dissipation and standby characteristics.
• Operating Range & Polarity — Polarized capacitor with an operating temperature range from −25°C to 105°C, suitable for general‑purpose power applications within that envelope.
• Compact Low‑Profile Size — Dimension φ35 × 20 mm (D × L) to minimize vertical space while retaining high voltage and capacitance in a snap‑in form factor.

Typical Applications

• General‑Purpose Power Systems — Used for smoothing and energy storage in power conversion and filtering stages where 400 V ratings and elevated temperature endurance are required.
• Industrial Electronics — Applied in industrial power modules and control equipment that demand reliable ripple handling and long life at 105°C.
• Commercial Power Supplies — Suitable for rectifier/filter sections and bulk storage in commercial AC/DC and DC/DC supply designs.

Unique Advantages

• High Voltage Capability: 400 V rating provides headroom for high‑voltage rails and power supply designs that require robust voltage tolerance.
• Elevated Temperature Life: 3000 hours at 105°C ensures long‑term stability in high‑temperature environments, reducing maintenance and replacement frequency.
• Strong Ripple Performance: Defined ripple currents at both low and high frequencies (1.160 A at 120 Hz, 1.659 A at 50 kHz) support demanding AC and switching load profiles.
• Low‑Profile, Snap‑In Form Factor: φ35 × 20 mm body with snap‑in terminals enables compact, secure mounting in assemblies where vertical space and mechanical retention matter.
• Predictable Loss and Leakage: tanδ ≤ 0.15 at 20°C/120 Hz and specified leakage current (800 µA) provide measurable dissipation and standby current figures for design margins and thermal planning.
• Production‑Ready Packaging: Tray packing and mass production status support volume procurement and streamlined assembly processes.

Why Choose LGJ2G181MELC20?

The LGJ2G181MELC20 balances high voltage, significant capacitance, and elevated‑temperature endurance in a compact snap‑in package, making it a practical choice for engineers specifying bulk and filter capacitors for power supply and industrial applications. Its characterized ripple performance, defined loss tangent, and leakage figures enable predictable thermal and electrical design margins.

This part is well suited for designs that require reliable 400 V energy storage and filtering in a low‑profile form factor, offering straightforward integration into rack or chassis assemblies and volume production workflows.

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