LLG2G331MELZ45

The LLG2G331MELZ45 is a snap-in terminal aluminum electrolytic capacitor in Nichicon’s LLG series, offering 330 µF capacitance at a 400 V rated voltage. It is designed as a smaller-sized, snap-in radial can for general-purpose applications where compact high-voltage capacitance is required.

Key value comes from its combination of high voltage rating, measurable ripple handling at both low and high frequencies, 2000 hours endurance at 85°C, and RoHS compliance — making it suitable for designs that require durable high-voltage bulk capacitance in a compact snap-in package.

Key Features

• Capacitance & Voltage: 330 µF rated capacitance at 400 V, with tolerance ±20% (at 120 Hz, 20°C).
• Ripple Current Handling: Rated ripple current 1.7 A at 120 Hz and 2.431 A at 100 kHz, enabling effective filtering and smoothing across a range of frequencies.
• Loss Characteristics: tanδ (dissipation factor) ≤ 0.15 measured at 20°C and 120 Hz, supporting predictable ESR-related behavior.
• Endurance & Temperature: 2000 hours life at 85°C under rated DC bias plus rated ripple current; operating temperature range −25°C to 85°C for the 400 V version.
• Leakage Current & Polarization: Specified leakage current of 1080 µA and polarized construction for DC circuit use.
• Package & Mounting: Snap-in radial can package, compact size φ22 × 45 mm (L: 4.5 × D: 2.2 cm), supplied in tray packing for mass production assembly.
• Regulatory Compliance: RoHS compliant per the LLG series documentation.

Typical Applications

• General-purpose power electronics: Provides bulk capacitance and smoothing in systems that require a 400 V rated capacitor with substantial ripple current capability.
• Compact high-voltage equipment: The smaller-sized LLG case is suited to equipment down-sizing where high-voltage capacitance must fit into limited space.
• Boards requiring snap-in mounting: Snap-in terminal format simplifies secure mechanical mounting for power assemblies and serviceable modules.
• High-voltage DC circuits: Suitable for circuits operating up to 400 V that need polarized, high-capacitance components with defined endurance and leakage characteristics.

Unique Advantages

• 400 V rating: Supports high-voltage designs requiring 330 µF capacitance at 400 V.
• Measured ripple capability across frequencies: 1.7 A at 120 Hz and 2.431 A at 100 kHz provides quantifiable ripple performance for both low- and high-frequency applications.
• Compact snap-in package: φ22 × 45 mm can and snap-in mounting combine space efficiency with robust mechanical retention for production assemblies.
• Long endurance at elevated temperature: 2000 hours at 85°C under rated conditions provides a defined life metric for thermal stress planning.
• Predictable loss and leakage: tanδ ≤ 0.15 (20°C, 120 Hz) and specified leakage current allow designers to model ESR-related heating and standby current precisely.
• RoHS compliant: Conforms to RoHS directives as indicated for the LLG series.

Why Choose LLG2G331MELZ45?

The LLG2G331MELZ45 positions itself as a compact, high-voltage aluminum electrolytic solution for designs that require substantial bulk capacitance in a smaller case. With a 400 V rating, defined ripple current values at both low and high frequencies, and a 2000-hour endurance at 85°C, it offers quantifiable performance metrics that help engineers plan thermal, ripple, and lifetime behavior.

This part is ideal for engineers and procurement teams specifying general-purpose high-voltage capacitors for production assemblies that benefit from snap-in mounting and tray packing. Its combination of measurable electrical characteristics and RoHS compliance supports robust design decisions for long-term deployment.

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