LLG2W821MELC50

The LLG2W821MELC50 is an aluminum electrolytic capacitor in a snap-in terminal, radial can package from Nichicon’s LLG series. It provides 820 µF of capacitance at a 450 V rating and is designed as a smaller-sized, 85°C snap-in solution suited for equipment downsizing.

Configured for general-purpose applications, the part combines high-voltage bulk capacitance with snap-in PCB mounting and RoHS compliance to support compact electronic designs requiring reliable DC energy storage and smoothing under moderate operating temperatures.

Key Features

• Capacitance & Voltage: 820 µF capacitance rated at 450 V for high-voltage bulk storage in compact form.
• Snap-in Radial Can Package: Snap-in terminal type and radial, can-style package provide secure PCB mounting and mechanical stability for board-level power sections.
• Smaller-Sized Design: One rank smaller case size than the LLS series, enabling equipment downsizing without sacrificing capacitance.
• Temperature Rating & Endurance: Rated for –25°C to +85°C (for 400–450 V range) with endurance of 2000 hours at 85°C under rated DC bias plus rated ripple current.
• Ripple Current Performance: Specified ripple current of 3 A at 120 Hz and 4.29 A at 100 kHz to support ripple handling in high-voltage circuits.
• Leakage and Loss Characteristics: Leakage current defined as I ≤ 3√CV (µA) after 5 minutes at 20°C; loss tangent (tan δ) max 0.20 at 450 V (measured at 120 Hz, 20°C).
• RoHS Compliant: Compliant with the RoHS directive (2011/65/EU, (EU)2015/863), suitable for electronics requiring restricted substance compliance.
• Polarized Device: Polarized aluminum electrolytic construction for DC applications.
• Compact Dimensions: Physical size approximately L: 5 × D: 3.5 cm, supporting space-constrained layouts.

Typical Applications

• General-Purpose Electronic Equipment: Provides high-voltage bulk capacitance for general-purpose circuits where downsizing and RoHS compliance are required.
• High-Voltage DC Bus / Power Modules: 450 V rating and 820 µF capacitance make it suitable for DC bus decoupling and energy storage in high-voltage power sections.
• PCB-Mounted Power Assemblies: Snap-in radial can format enables secure board mounting for power supply and converter modules that require robust mechanical attachment.

Unique Advantages

• Space-Saving Form Factor: One-rank-smaller case size than the LLS series helps reduce enclosure footprint while retaining substantial capacitance.
• High-Voltage Capability: 450 V rating supports designs that require elevated DC voltage handling without adding external series components.
• Designed for Continuous Operation at 85°C: Endurance specified at 2000 hours at 85°C under rated conditions provides predictable aging characteristics for product planning.
• Defined Ripple Handling: Clear ripple current ratings at both 120 Hz and 100 kHz help designers match capacitor selection to expected operating frequencies.
• Regulatory Compliance: RoHS compliance simplifies environmental conformity for global equipment deployment.
• Measurable Electrical Limits: Specified leakage current formula and maximum tan δ at 450 V provide deterministic behavior for system power budgeting and stability analysis.

Why Choose LLG2W821MELC50?

The LLG2W821MELC50 positions itself as a compact, high-voltage aluminum electrolytic solution for engineers needing 820 µF at 450 V in a snap-in package. Its smaller-sized LLG form factor and 85°C endurance rating make it a practical choice for designs focused on space reduction while maintaining predictable electrical performance.

This part is suited for designers of general-purpose electronic equipment and high-voltage power assemblies who require RoHS compliance, clear ripple-current specifications, and known leakage and loss characteristics for reliable system-level integration.

Request a quote or contact sales to discuss availability, lead times, and volume pricing for the LLG2W821MELC50.