LGU2G181MELZ

The LGU2G181MELZ is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGU series, designed for general‑purpose high‑voltage applications. It delivers 180 µF capacitance at a 400 V rated voltage with polarized snap‑in mounting and is offered in a radial can (φ22×45L) package.

Engineered for continuous operation up to 105 °C, this part withstands extended ripple loading and is supplied in tray packing for production use. RoHS compliance and mass‑production status make it suitable for design and procurement workflows.

Key Features

• Electrical Performance 180 µF capacitance with ±20% tolerance and a 400 V rated voltage for high‑voltage energy storage and filtering.
• Loss Characteristics Tangent of loss angle (tan δ) of 0.15 measured at 20 °C, 120 Hz, supporting predictable AC loss behavior in design calculations.
• Ripple Current Capability Low‑frequency ripple current 980 mA (120 Hz) and high‑frequency ripple current 1.401 A (50 kHz), enabling use where sustained ripple handling is required.
• Leakage Current Specified leakage current of 800 µA, useful for bias loss and end‑user power budgeting.
• High‑Temperature Endurance Rated for 3,000 hours at 105 °C while withstanding rated ripple current, meeting long‑duration thermal stress requirements.
• Package & Mounting Snap‑in terminal, radial can (φ22×45L; 4.5 × 2.2 cm), designed for secure PCB mounting and straightforward assembly.
• Environmental Compliance & Supply RoHS compliant and offered in tray packing; part is in mass production for volume deployment.

Typical Applications

• High‑voltage power supplies — Energy storage and smoothing at up to 400 V where stable capacitance and controlled loss are required.
• Power conversion and DC bus filtering — Handles continuous ripple currents (980 mA at 120 Hz / 1.401 A at 50 kHz) for DC link and filter stages.
• Industrial equipment operating at elevated temperatures — Designed for long‑term operation up to 105 °C with 3,000‑hour endurance under rated ripple loading.
• General‑purpose electronic systems — Polarized, snap‑in format provides a compact solution for boards requiring high‑voltage electrolytic capacitance.

Unique Advantages

• High voltage handling: 400 V rating enables use in higher‑voltage circuits without series combinations, simplifying design.
• Measured loss specification: tan δ = 0.15 at 20 °C / 120 Hz provides a predictable AC loss figure for thermal and efficiency calculations.
• Robust ripple endurance: Specified ripple currents at both low and high frequency reduce the need for oversized capacitors or parallel devices.
• Long thermal life: 3,000 hours endurance at 105 °C under rated ripple current supports reliability in hot operating environments.
• Production‑ready packaging: Tray packing and mass‑production availability help streamline procurement and assembly for volume projects.
• Regulatory compliance: RoHS‑compliant construction supports environmentally conscious product builds.

Why Choose LGU2G181MELZ?

LGU2G181MELZ combines a high 400 V rating with 180 µF capacitance and specified loss and ripple characteristics, making it a practical choice for designs that require reliable high‑voltage energy storage and filtering. Its snap‑in radial can and tray packing support efficient assembly in production environments.

This capacitor is well suited for engineers and procurement teams building systems that demand sustained operation at elevated temperatures (up to 105 °C) and predictable ripple performance over extended service life. The combination of endurance, clear electrical specifications, and RoHS compliance provides a straightforward, verifiable component choice for general‑purpose high‑voltage applications.

To request a quote or submit a procurement inquiry for LGU2G181MELZ, please contact sales with your quantity and delivery requirements and request pricing and availability.