LGW2D821MELZ45

The LGW2D821MELZ45 from Nichicon is an aluminum electrolytic, snap-in terminal capacitor in the LGW series designed for general-purpose power applications. It delivers 820 µF at 200 V in a radial, can-type snap-in package with a compact footprint (L: 4.5 × D: 2.2 cm).

This device targets designs that require sustained ripple current performance and elevated temperature endurance: it is specified for operation from -40 °C to 105 °C and is rated to withstand 3000 hours of rated ripple current at 105 °C. The part is RoHS compliant.

Key Features

• Electrical characteristics — 820 µF rated capacitance at 200 V with ±20% tolerance, suitable for bulk energy storage and smoothing where a high-capacitance, high-voltage snap-in capacitor is required.
• High ripple current capability — Rated ripple current values include 2.65 A at 120 Hz and 3.975 A at 50 kHz, supporting sustained AC current stress across common power-conversion frequency ranges.
• Thermal and endurance specification — Operating temperature range of -40 °C to 105 °C and qualified to withstand 3000 hours application of rated ripple current at 105 °C with defined endurance criteria (capacitance change within ±20%, tan δ and leakage within series limits).
• Package and mounting — Radial, can-style body with snap-in terminals for robust board anchoring and secure mechanical connection in power assemblies; nominal body size L: 4.5 × D: 2.2 cm.
• Leakage and dissipation — Series specifications include leakage current defined by I ≤ 3√CV (µA) after 5 minutes at 20 °C and a maximum tan δ of 0.15 for 200 V rating (measurement at 120 Hz, 20 °C).
• Regulatory compliance — Compliant to the RoHS directive (2011/65/EU,(EU)2015/863).

Typical Applications

• General-purpose power smoothing — Bulk smoothing and decoupling in power circuits that require 200 V-rated capacitance with high ripple endurance.
• Power supplies and converters — Energy storage and ripple-handling in switch-mode power supplies and AC/DC converter front ends where long-term ripple endurance at elevated temperature is required.
• Industrial equipment — Use in industrial power assemblies and control equipment that demand a 200 V, high-capacitance snap-in capacitor with verified 3000-hour endurance at 105 °C.

Unique Advantages

• Long ripple endurance: Specified to withstand 3000 hours of rated ripple current at 105 °C, supporting designs with sustained thermal and electrical stress.
• High-frequency ripple performance: Explicit ripple-current ratings at both 120 Hz (2.65 A) and 50 kHz (3.975 A) allow designers to validate performance across switching and ripple frequency ranges.
• Wide operating temperature range: Rated from -40 °C to 105 °C, enabling use across a broad set of environmental conditions.
• Robust mechanical mounting: Radial, snap-in can package provides secure PCB retention for power assemblies.
• Conservative loss and leakage limits: Series-level limits include a maximum tan δ and a defined leakage current formula (I ≤ 3√CV), making electrical behavior predictable for design margining.
• RoHS compliance: Meets current RoHS requirements for material and substance restrictions.

Why Choose LGW2D821MELZ45?

The LGW2D821MELZ45 combines a high-capacitance 820 µF value with a 200 V rating, elevated temperature capability to 105 °C, and verified 3000-hour ripple endurance—making it a practical choice for engineers designing general-purpose power systems that require reliable bulk capacitance and sustained ripple handling. Its snap-in radial can package simplifies mechanical integration into power assemblies.

This part is well suited to designers and procurement teams seeking a proven electrolytic solution from Nichicon's LGW series with clear, verifiable electrical and endurance specifications and RoHS compliance for long-term, robust operation in demanding environments.

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