LAS2W181MELB30ZB

The LAS2W181MELB30ZB is a snap-in terminal aluminum electrolytic capacitor designed for high-voltage, general-purpose power applications. It delivers 180 µF at a 450 V rating in a compact φ30×30 mm can and is built for extended operation under elevated ripple current and temperature conditions.

Engineered for equipment operating in voltage-fluctuating environments, this Nichicon LAS series capacitor combines high ripple-current capability, 105°C endurance, and enhanced safety features to support reliable smoothing and filtering in industrial and power-electronics designs. The product is RoHS compliant (2011/65/EU,(EU)2015/863).

Key Features

• Electrical Performance — 180 µF capacitance at 450 V rated voltage with polarization suited for DC filtering and smoothing in power circuits; capacitance tolerance ±20%.
• High Ripple-Current Capability — Rated ripple current of 970 mA at 120 Hz and 1.115 A at 10 kHz, withstanding sustained ripple-current application at 105°C for 2000 hours as specified.
• 105°C Endurance — Endurance specification: meets performance criteria after 2000 hours of DC bias plus rated ripple current at 105°C (capacitance change within ±20%, tan δ within 200%, leakage current ≤ initial value).
• Improved Safety Features — Designed with pressure-relief safety performance to operate under abnormal voltage conditions without dangerous flame or dispersion of case components.
• Package & Mounting — Radial, snap-in can package (φ30×30 mm) for robust through-hole mounting and secure board retention in high-vibration or industrial environments.
• Wide Operating Range — Rated for use from −25°C to +105°C to accommodate industrial temperature environments.
• Leakage and Loss Characteristics — Leakage current and tan δ meet Nichicon LAS series specifications (leakage current: I ≤ 3√C µA after 5 minutes at 20°C; tan δ max 0.20 at 120 Hz, 20°C).

Typical Applications

• Industrial Power Supplies — Bulk filtering and smoothing in supplies exposed to fluctuating input voltages where sustained ripple handling and 105°C endurance are required.
• Inverters and Motor Drives — Energy storage and decoupling in power-electronics circuits that demand high ripple-current capability and robust safety behavior under transient overvoltage conditions.
• UPS and Backup Power Systems — DC link and smoothing capacitor for backup power modules operating in environments with variable voltage and temperature stress.

Unique Advantages

• Sustained High-Ripple Endurance: Withstands rated ripple current at 105°C for 2000 hours, providing predictable lifetime performance in demanding power applications.
• Compact Snap-in Form: φ30×30 mm snap-in can reduces board footprint while offering reliable mechanical retention for through-hole assemblies.
• Enhanced Safety Design: Pressure-relief and abnormal-voltage protections limit hazardous failure modes, improving system-level safety in fluctuating-voltage environments.
• High-Voltage Capability: 450 V rating supports higher-voltage DC-link and power-supply architectures without requiring larger, heavier components.
• Wide Frequency Ripple Support: Ripple current ratings provided for 120 Hz and 10 kHz (970 mA and 1.115 A respectively), enabling use across low- and high-frequency power environments.
• RoHS Compliance: Conforms to 2011/65/EU and (EU)2015/863, supporting restricted-substance requirements.

Why Choose LAS2W181MELB30ZB?

The LAS2W181MELB30ZB positions itself as a high-voltage, high-ripple-capacity snap-in electrolytic solution for designs that must tolerate voltage fluctuation and elevated operating temperatures. Its 450 V rating, 180 µF capacitance, and documented 2000-hour endurance at 105°C make it suited to power-supply, inverter, and backup-power applications that require predictable long-term behavior.

Engineers specifying this Nichicon LAS series part gain a compact radial snap-in package with enhanced safety measures and verified leakage and loss characteristics, helping to simplify BOM choices for robust, long-life power-electronics designs.

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