LLS2W331MELB

The LLS2W331MELB from Nichicon is a snap-in terminal type aluminum electrolytic capacitor in the LLS series, rated for 450 V and 330 µF with ±20% tolerance. Designed for general-purpose power applications, it combines a high voltage rating with snap-in radial can packaging for robust PCB mounting.

Key value propositions include a wide operating temperature window specified for 350–450 V operation (–25°C to 85°C), a specified endurance of 3000 hours at 85°C under rated ripple current, and RoHS compliance.

Key Features

• High Voltage Rating — Rated voltage of 450 V suitable for high-voltage DC applications that require substantial capacitance.
• Capacitance and Tolerance — 330 µF nominal capacitance with ±20% tolerance (measured at 120 Hz, 20°C), providing defined energy storage for power smoothing and filtering.
• Snap-in Radial Can Package — Snap-in terminal type with radial, can-style package for secure board mounting and straightforward assembly.
• Endurance at Elevated Temperature — Specified to withstand 3000 hours at 85°C with rated ripple current applied, with limits defined for capacitance change, tan δ and leakage current after the endurance test.
• Ripple Current Capability — Rated ripple current values of 2.12 A at 120 Hz and 3.032 A at 50 kHz, supporting AC ripple handling in power circuits.
• Operating Temperature Range — Specified operating range of –25°C to +85°C for the 350–450 V rated products in the series.
• Polarized Device — Polarized aluminum electrolytic construction for DC energy storage and filtering applications.
• Regulatory Compliance — RoHS compliant in accordance with the referenced directives.
• Compact Footprint — Body dimensions approximately L: 4 cm × D: 3 cm with a seated height specification for board planning.

Typical Applications

• High‑Voltage Power Supplies — Bulk energy storage and smoothing where a 450 V rated capacitor is required to stabilize DC bus voltages.
• DC Link and Power Conversion — Filtering and ripple absorption in converters and inverters that operate at high DC voltages and require robust ripple current handling.
• General‑Purpose Power Filtering — General-purpose smoothing and decoupling in systems that need a high-voltage, high-capacitance polarized capacitor.

Unique Advantages

• High-voltage capability: 450 V rating enables use in applications that require elevated DC voltages without series stacking of smaller capacitors.
• Long-term thermal endurance: 3000 hours at 85°C under rated ripple current provides predictable performance over extended elevated-temperature operation.
• Measured ripple specifications: Explicit ripple current values at 120 Hz and 50 kHz allow designers to size capacitors against known ripple loads.
• Secure snap-in mounting: Snap-in radial can simplifies PCB retention and mechanical stability in power assemblies.
• Clear electrical characterization: Defined capacitance tolerance, leakage current limit, and tan δ criteria support straightforward design verification and lifecycle planning.
• RoHS compliance: Meets environmental directive requirements for restricted substances.

Why Choose LLS2W331MELB?

The LLS2W331MELB is positioned for designers who need a high-voltage, high-capacitance aluminum electrolytic capacitor with clear endurance and ripple specifications. Its snap-in radial can package and defined thermal endurance make it suitable for robust power circuitry where predictable long-term behavior at elevated temperature matters.

Ideal for engineers specifying capacitors for high-voltage DC bus smoothing, ripple filtering, and general-purpose power applications, this Nichicon LLS series part provides documented performance parameters and RoHS compliance to support reliable product designs.

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