LGW2W221MELB35

The LGW2W221MELB35 is a snap‑in terminal aluminum electrolytic capacitor rated at 450 V and 220 µF. It is a polarized, radial can capacitor in the Nichicon LGW series designed for general‑purpose power applications that require high ripple current handling and extended endurance at elevated temperatures.

This part delivers high ripple capability with specified endurance of 3000 hours at 105°C under rated ripple conditions, and it is RoHS compliant (2011/65/EU, (EU)2015/863).

Key Features

• Electrical Performance: 220 µF capacitance at 450 V rated voltage with ±20% tolerance (–20% to +20%). Polarized design for DC applications.
• High Ripple Current: Specified ripple current of 1.71 A at 120 Hz and 2.445 A at 50 kHz for this part, supporting high AC stress on the capacitor.
• Endurance & Reliability: Endurance rating of 3000 hours at 105°C when D.C. bias plus rated ripple current is applied; capacitance change remains within ±20% after the test.
• Temperature Range & Low‑temp Stability: Operating temperature range –25°C to 105°C; impedance ratio Z(–25°C)/Z(+20°C) up to 8 for the 400–450 V range as defined by the series data.
• Leakage Current Specification: Series leakage current defined as I ≤ 3√(C·V) (µA) after 5 minutes’ application of rated voltage at 20°C, per series datasheet.
• Package & Mounting: Radial, snap‑in can package (snap‑in terminal type) with dimensions L: 3.5 cm × D: 3.0 cm and a seated height spec of 1.378 inch.
• Environmental Compliance: RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑purpose power electronics: Bulk smoothing and ripple endurance in general‑purpose power designs where 450 V voltage handling and high ripple capability are required.
• Industrial power modules: Energy storage and filtering in industrial power assemblies that operate up to 105°C and demand long ripple‑endurance life.
• High‑voltage DC systems: DC link and filtering applications that require polarized high‑voltage capacitance with robust ripple performance.

Unique Advantages

• High voltage capability: 450 V rating enables use in higher‑voltage DC systems without series stacking of lower‑voltage parts.
• Designed for sustained ripple stress: Rated ripple current figures and a 3000‑hour endurance at 105°C provide predictable long‑term performance under ripple loading.
• Snap‑in mounting for secure installation: Radial snap‑in can construction simplifies board retention and supports robust mechanical mounting in power assemblies.
• Measured leakage and loss characteristics: Leakage current defined by the I ≤ 3√(C·V) formula and tan δ limits (0.20 max. at 450 V, measured at 120 Hz, 20°C) allow engineers to assess loss and standby power precisely.
• Frequency‑aware ripple performance: Series frequency coefficients indicate increased allowable ripple at higher frequencies (series data shows coefficients up to ~1.43 at 50 kHz for the 400–450 V range), supporting designs with high‑frequency switching components.
• RoHS compliance: Meets applicable RoHS directives for environmentally conscious designs.

Why Choose LGW2W221MELB35?

The LGW2W221MELB35 combines a high 450 V rating with 220 µF capacitance and validated high ripple endurance (3000 hours at 105°C), making it well suited for designers who need dependable high‑voltage bulk capacitance and sustained ripple handling in general‑purpose power systems. Its snap‑in radial can package provides robust mechanical retention for power modules and assemblies.

This part is appropriate for engineers and procurement teams specifying capacitors for industrial and high‑voltage DC applications where long life under ripple stress, clear leakage and loss specifications, and RoHS compliance are required.

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