LAR2W471MELC45

The LAR2W471MELC45 is a snap-in terminal aluminum electrolytic capacitor offering 470 µF capacitance at a rated voltage of 450 V. Designed for general-purpose high-voltage power applications, it combines a radial can snap-in package with polarized construction and high-temperature endurance.

Key value propositions include high-voltage energy storage, rated ripple-current endurance at elevated temperature, and in-built safety characteristics for overvoltage conditions, along with RoHS compliance for regulated environments.

Key Features

• Electrical Performance: 470 µF capacitance with a rated voltage of 450 V and capacitance tolerance of ±20% (120 Hz, 20°C). Polarized design for DC applications.
• Ripple Current Capability: Rated ripple current of 1.78 A at 120 Hz and 2.545 A at 50 kHz. Frequency coefficients from the datasheet show the rated ripple-current capability increases with frequency (120 Hz coefficient = 1.00; 50 kHz or more coefficient ≈ 1.43 for 400/450 V).
• Thermal and Endurance: Operating temperature range −25°C to +105°C. Endurance validated by withstanding 2000 hours of rated ripple-current application at 105°C (after test: capacitance change within ±20%, tan δ ≤ 200% of initial spec, leakage current ≤ initial spec).
• Safety & Overvoltage Behavior: Designed to reduce short incidence when overvoltage (rated × 1.5, limited current 1 A) is applied; safety performance testing shows more than 60% passing under those conditions (passing = pressure relief vent operates normally or does not open for 10 minutes without short or flame).
• Package & Mounting: Snap-in terminal, radial can package for secure board mounting. Physical size: L 4.5 × D 3.5 cm.
• Regulatory Compliance: Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• High‑Voltage Power Supplies: Bulk energy storage and smoothing on 400–450 V rails where 470 µF capacitance and high voltage rating are required.
• Power Conversion Modules: DC-link smoothing and ripple filtering in industrial converters and inverters operating up to 105°C.
• Industrial Equipment Power Systems: Energy buffering and decoupling in general-purpose industrial power electronics that demand long ripple-current endurance.

Unique Advantages

• High-Voltage Energy Density: 470 µF at 450 V provides substantial storage for high-voltage rails without increasing component count.
• Validated High‑Temperature Endurance: Rated to withstand 2000 hours of ripple-current operation at 105°C, supporting long-term performance in thermally demanding environments.
• Measured Ripple Performance Across Frequency: Specified ripple currents at 120 Hz and 50 kHz and frequency coefficients enable designers to assess performance across common switching and line frequencies.
• Overvoltage Safety Behavior: Reduction of short incidence and defined pass criteria under 1.5× rated voltage help manage abnormal stress scenarios.
• Robust Mounting: Snap-in radial can design simplifies board installation for high-current and high-voltage assemblies.
• RoHS Compliant: Meets RoHS directive requirements for use in regulated markets.

Why Choose LAR2W471MELC45?

The LAR2W471MELC45 targets designs that require a high-voltage aluminum electrolytic capacitor with substantial capacitance and verified endurance at elevated temperatures. Its combination of 470 µF at 450 V, rated ripple-current data, and safety-tested overvoltage behavior makes it suitable for engineers specifying components for demanding power-supply and power-conversion applications.

This part is appropriate for customers seeking long-term robustness and predictable ripple performance in general-purpose industrial power electronics, with RoHS compliance for regulated deployments and a snap-in package for reliable board mounting.

Request a quote or contact sales to discuss availability, lead times, and technical details for integrating the LAR2W471MELC45 into your design.