LGX2W331MELB45

The LGX2W331MELB45 is a snap‑in terminal aluminum electrolytic capacitor designed for high‑voltage power applications. As part of Nichicon’s LGX series, it combines a compact snap‑in can package with a long‑life assurance rating for demanding rectifier and power supply environments.

Targeted at rectifier circuits for general inverters and switching power supplies, this 330 µF, 450 V polarized capacitor provides long lifetime performance at elevated temperature while remaining RoHS compliant.

Key Features

• Electrical Rating — 330 µF capacitance at a 450 V rated voltage, with ±20% capacitance tolerance.
• High‑Temperature Operation — Rated for operation from −25°C to +105°C for use in elevated ambient environments.
• Long Life Assurance — Endurance validated to 5000 hours at 105°C under rated ripple current conditions.
• Ripple Current Performance — Rated ripple current of 1.51 A at 120 Hz and 2.159 A at 50 kHz to support rectifier and filtering duties in power electronics.
• Snap‑In Mounting — Radial can, snap‑in terminal package for secure PCB mounting and straightforward assembly.
• Compact Footprint — Smaller-sized can with dimensions L: 4.5 × D: 3 cm, enabling denser power module layouts.
• Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• General Inverters (Rectifier Circuits) — Used as rectifier smoothing and energy storage in inverter front ends where 450 V rating and high ripple tolerance are required.
• Switching Power Supplies — Provides bulk filtering and ripple attenuation in high‑voltage power supply stages operating at elevated temperatures.
• General Purpose Power Filtering — Suitable for power electronics designs that require a compact, high‑voltage polarized capacitor with long operational life.

Unique Advantages

• Long‑term high‑temperature reliability: 5000 hours endurance at 105°C ensures capacitance stability and controlled loss characteristics after extended high‑temperature use.
• High voltage capability: 450 V rating supports high DC link and rectifier applications without overrating multiple units.
• Designed for ripple-intensive environments: Specified ripple currents at both 120 Hz and 50 kHz provide measurable tolerance for rectifier and switching noise.
• Space-efficient snap‑in package: Radial snap‑in can with a 4.5 × 3.0 cm footprint allows compact PCB layouts and secure mechanical mounting.
• Regulatory compliance: RoHS compliance supports deployment in designs requiring restricted‑substance conformity.

Why Choose LGX2W331MELB45?

LGX2W331MELB45 is positioned for engineers designing high‑voltage power systems that demand a durable, long‑life electrolytic solution. Its combination of 450 V rating, 330 µF capacitance, validated 5000‑hour endurance at 105°C, and specific ripple current ratings make it suitable for rectifier smoothing and bulk filtering in inverter and switching power supply designs.

For projects that require a compact, snap‑in mounting capacitor from an established manufacturer, LGX2W331MELB45 offers a balance of voltage capability, thermal endurance, and regulatory compliance that supports reliable, long‑term operation in demanding power electronics applications.

Request a quote or contact sales to discuss availability, lead time, and how LGX2W331MELB45 can meet your project's high‑voltage filtering and energy storage requirements.