LGW2W181MELB30

The LGW2W181MELB30 is an aluminum electrolytic capacitor in a snap-in, radial can package designed for general-purpose electronic applications. It delivers 180 µF capacitance at a 450 V rating with a ±20% tolerance, combining high-voltage capability with high ripple-current endurance.

Engineered for sustained operation up to 105°C, this Nichicon LGW series part targets systems that require robust bulk capacitance, high ripple handling and long service life in a compact φ30 × 30 mm footprint.

Key Features

• Capacitance & Voltage — 180 µF rated capacitance at 450 V with ±20% tolerance, provided for bulk energy storage and smoothing in high-voltage circuits.
• High Ripple Current — Rated ripple current of 1.6 A at 120 Hz (low frequency) and 2.288 A at 50 kHz (high frequency), with frequency-dependent coefficients for operation across 50 Hz–50 kHz ranges.
• High-Temperature Endurance — Specified endurance of 3000 hours at 105°C under rated ripple and DC bias conditions.
• Operating Temperature Range — Designed for operation from –25°C to +105°C.
• Low Leakage — Rated leakage current of 850 µA (after 5 minutes' application of rated voltage at 20°C as per series specifications).
• Package & Mounting — Snap-in terminal (radial can, φ30 × 30L) for secure chassis or PCB mounting and simplified assembly.
• Compliance — RoHS-compliant construction.

Typical Applications

• General-purpose power designs — Suitable where a 450 V rated electrolytic capacitor with high ripple capability and long endurance is required.
• High-voltage bulk filtering — Used for bulk energy storage and smoothing in high-voltage supply stages that operate at elevated temperature.
• Industrial power equipment — Fits general-purpose industrial equipment designs needing robust high-voltage capacitance and long life.

Unique Advantages

• High-voltage capability: 450 V rating supports circuits requiring elevated DC voltage handling without up-rating multiple lower-voltage capacitors.
• High ripple endurance: 1.6 A (120 Hz) and 2.288 A (50 kHz) ripple ratings reduce stress on individual components and improve system reliability in ripple-intensive applications.
• Extended high-temperature life: 3000 hours at 105°C provides predictable end-of-life characteristics for thermal-stressed designs.
• Compact snap-in package: φ30 × 30 mm radial can with snap-in terminals enables secure mounting and straightforward integration into assemblies.
• Low leakage performance: 850 µA leakage current helps minimize standby losses and supports stable bias conditions after voltage application.
• RoHS compliance: Meets environmental directive requirements for restricted substances.

Why Choose LGW2W181MELB30?

The LGW2W181MELB30 from Nichicon combines a high 450 V rating with substantial 180 µF capacitance and elevated ripple-current capability, making it a practical choice for general-purpose high-voltage power designs that require durability at up to 105°C. Its 3000-hour endurance at the upper operating temperature provides designers with clear life-expectancy parameters for thermal and ripple-stressed applications.

This snap-in, radial-can capacitor is suited to engineers and procurement teams seeking a reliable, RoHS-compliant component for systems where compact high-voltage capacitance, predictable leakage, and long-term performance matter. Backed by Nichicon’s LGW series specifications, it supports straightforward integration into existing high-voltage power assemblies.

Request a quote or contact sales for pricing, availability and lead-time information for LGW2W181MELB30.