LAR2W221MELC25

The LAR2W221MELC25 is a snap‑in terminal aluminum electrolytic capacitor designed for general‑purpose power applications that require high voltage handling and compact snap‑in mounting. Built to operate up to 105°C, this 450 V, 220 µF polarized capacitor delivers reliable energy storage and ripple handling in radial, can‑style packages for industrial and power electronics assemblies.

Key Features

• 450 V rated voltage — Supports high‑voltage DC applications with a 450 V nominal rating.
• 220 µF capacitance — Provides substantial bulk energy storage with ±20% tolerance at 120 Hz, 20°C.
• Snap‑in terminal, radial can package — φ35 × 25L form factor (L: 2.5 × D: 3.5 cm) for secure snap‑in PCB mounting and simplified assembly.
• Wide operating temperature — Rated for operation from −25°C to +105°C at the 400–450 V category.
• High‑temperature endurance — Withstands 2000 hours of rated ripple current at 105°C, meeting endurance criteria for prolonged thermal stress.
• Ripple current capability — Specified ripple current: 1.05 A at 120 Hz and 1.502 A at 50 kHz, enabling effective smoothing of AC‑ripple across typical power frequencies.
• Safety performance under overvoltage — Designed to reduce short incidence when exposed to 1.5× rated voltage; overvoltage testing demonstrates that more than 60% of parts meet the passing criteria (pressure relief vent operation or no opening for 10 minutes without short and flame).
• RoHS compliant — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑purpose power filtering — Bulk smoothing and decoupling where a 450 V, 220 µF polarized capacitor is required.
• High‑voltage DC link support — Energy storage and ripple suppression in high‑voltage power stages compatible with snap‑in mounting.
• Industrial power supplies — Long‑life performance under elevated temperature stress for supply filtering and stabilization.

Unique Advantages

• High voltage capacity: 450 V rating enables use in higher‑voltage DC systems without additional series stacking.
• Thermal endurance: 2000‑hour rated ripple current endurance at 105°C provides confidence in elevated‑temperature service life.
• Snap‑in robustness: Radial, can‑style snap‑in terminals simplify board assembly and secure mounting in dense power modules.
• Verified overvoltage behavior: Design and testing reduce short incidence under 1.5× rated voltage, with a documented passing rate in specified overvoltage tests.
• Frequency‑aware ripple performance: Specified ripple current values at 120 Hz and 50 kHz allow designers to evaluate performance across common ripple frequency ranges.
• Regulatory compliance: RoHS conformity supports use in regions requiring restricted‑substance compliance.

Why Choose LAR2W221MELC25?

The LAR2W221MELC25 combines a high 450 V rating with substantial 220 µF capacitance in a snap‑in, radial can package optimized for robust mounting and elevated temperature operation. Its 2000‑hour endurance at 105°C and measured ripple current capability make it suitable for designers addressing long‑life power filtering and DC link stabilization in industrial and general‑purpose power electronics.

This part is suited for engineers and procurement teams seeking a verified, RoHS‑compliant electrolytic solution that balances high‑voltage performance, thermal endurance, and straightforward PCB integration.

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