LLG2W121MELZ25

The LLG2W121MELZ25 is a Nichicon LLG series aluminum electrolytic capacitor in a snap-in terminal radial can. It delivers 120 µF capacitance at a 450 V rated voltage in a compact, one-rank-smaller case than the LLS series, making it suited for equipment downsizing and space-constrained power designs.

Designed for general-purpose applications, this polarized capacitor provides a combination of high-voltage capability, defined ripple handling, and defined lifetime performance for reliable integration into production designs.

Key Features

• Capacitance & Voltage — 120 µF rated capacitance with a 450 V rated voltage, specified ±20% tolerance at 120 Hz, 20°C.
• Compact Snap-in Package — Radial, can-style snap-in terminal construction for secure board mounting; physical size L: 2.5 cm × D: 2.2 cm and one rank smaller case than LLS for equipment downsizing.
• Operating Temperature & Endurance — Rated for –25°C to +85°C (for 400–450 V range) with an endurance specification of 2000 hours at 85°C under DC bias plus rated ripple current.
• Ripple Current Capability — Specified ripple current of 930 mA at 120 Hz and 1.33 A at 100 kHz, supporting AC ripple handling across common power frequencies.
• Leakage and Loss Characteristics — Leakage current specified as I ≤ 3√CV (μA) after 5 minutes at 20°C; tangent of loss angle (tan δ) max. 0.20 at 450 V (measured at 120 Hz, 20°C).
• Polarized Electrolytic Type — Polarized capacitor suitable for general-purpose DC applications where an electrolytic solution and high capacitance per volume are required.
• Environmental Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General-purpose power circuits — Use where a polarized 120 µF, 450 V capacitor is required for board-mounted power assemblies in compact equipment.
• Space-constrained equipment — The smaller-case LLG form factor is intended for designs that demand reduced footprint without changing capacitor family characteristics.
• Board-mounted power modules — Snap-in radial can construction provides a secure mechanical mount for chassis- or PCB-integrated power components.

Unique Advantages

• Space-saving footprint: One rank smaller case size than LLS and compact dimensions (2.5 cm × 2.2 cm) help reduce overall equipment size.
• High-voltage capability: 450 V rated voltage enables use in higher-voltage general-purpose applications while retaining electrolytic capacitance density.
• Defined ripple performance: Specified ripple currents at both low (120 Hz) and high (100 kHz) frequencies support predictable thermal and electrical behavior under AC stress.
• Engineered endurance: 2000 hours at 85°C under rated bias and ripple current provides a quantified lifetime metric for design planning.
• Measured loss and leakage limits: tan δ and leakage current specifications provide measurable electrical quality for validation and acceptance tests.
• RoHS compliant: Meets current RoHS directive requirements for environmental regulatory conformity.

Why Choose LLG2W121MELZ25?

The LLG2W121MELZ25 positions itself as a compact, high-voltage snap-in electrolytic option within the Nichicon LLG family—combining a 120 µF capacitance with a 450 V rating in a reduced footprint. Its specified ripple current ratings, leakage limits, and 2000-hour endurance at 85°C make it suitable for designers targeting reliable, general-purpose power components where board space is at a premium.

Manufactured by Nichicon and built to LLG series specifications, this part is appropriate for production designs that require clear, verifiable electrical and lifetime characteristics along with RoHS compliance.

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