LLG2G821MELC40

The LLG2G821MELC40 is an aluminum electrolytic capacitor in a snap‑in terminal, radial can package designed for general‑purpose power applications. It provides 820 µF capacitance at a 400 V rated voltage with polarized construction and RoHS compliance.

Engineered as a smaller-sized option (one rank smaller than LLS), this part is suited for equipment downsizing where high-voltage smoothing and energy storage are required while maintaining industry-standard endurance and ripple performance.

Key Features

• Capacitance and Voltage: 820 µF nominal capacitance with a 400 V rated voltage and ±20% tolerance for bulk energy storage and smoothing in high-voltage circuits.
• Snap‑in, Radial Can Package: Snap‑in terminal mounting in a radial can package for secure board installation and high mechanical stability.
• Smaller-Sized Design: One rank smaller case size than the LLS series, enabling equipment footprint reduction and denser power assemblies.
• Temperature and Endurance: Rated for operation from −25 °C to +85 °C with an endurance specification of 2000 hours at 85 °C under rated DC bias plus ripple current.
• Ripple Current Performance: Rated ripple current of 2.96 A at 120 Hz and 4.233 A at 100 kHz, supporting both low- and high-frequency ripple environments.
• Leakage and Loss Characteristics: Leakage current defined by I ≤ 3√(C·V) µA after 5 minutes at 20 °C; tangent of loss angle (tan δ) max. 0.15 for rated voltages up to 400 V (measured at 120 Hz, 20 °C).
• Physical Size: Body dimensions approximately L: 4 × D: 3.5 cm, packaged as a snap‑in radial can for compact integration.
• RoHS Compliance: Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Power Supply Filtering: Bulk smoothing and decoupling in high-voltage power supplies where 400 V rating and high capacitance are required.
• Industrial and Commercial Equipment: Energy storage and ripple suppression in general-purpose industrial electronics and commercial power modules.
• Equipment Downsizing: Replacement or redesign applications that require a smaller case size than the LLS series while retaining similar electrical characteristics.

Unique Advantages

• High-Voltage, High-Capacitance Combination: 820 µF at 400 V provides substantial energy storage for high-voltage smoothing without combining multiple smaller capacitors.
• Compact Footprint for Downsized Designs: One-rank-smaller case than LLS enables reduced PCB area and denser power assemblies.
• Robust Ripple Handling: Rated ripple currents at both 120 Hz and 100 kHz support a range of switching and line-frequency applications.
• Defined Reliability Metrics: 2000-hour endurance at 85 °C and specified limits for capacitance change, tan δ, and leakage current provide clear performance expectations over life testing.
• Regulatory Compliance: RoHS compliance supports deployment in regions and projects requiring restricted substance conformity.

Why Choose LLG2G821MELC40?

The LLG2G821MELC40 offers a balanced combination of high capacitance and high voltage in a smaller-sized snap‑in radial can package, making it well suited for designers targeting equipment downsizing without sacrificing energy storage or ripple-handling capability. Its defined endurance and electrical characteristics provide predictable performance in general-purpose power and industrial designs.

This part is ideal for engineers and procurement teams specifying high-voltage bulk capacitors where RoHS compliance, compact footprint, and clear lifetime/ripple specifications are required.

Request a quote or submit an inquiry to discuss availability, lead times, and how LLG2G821MELC40 can fit your next design.