LGU2Z391MELA

The LGU2Z391MELA is an aluminum electrolytic, snap‑in terminal capacitor designed for general‑purpose power applications. It provides 390 µF capacitance at a 180 V rating in a radial, snap‑in can package sized φ25 × 25 mm.

Engineered for elevated temperature operation and sustained ripple duty, the part delivers robust ripple current capability and 3000 hours endurance at 105°C, making it suitable for designs that require reliable bulk capacitance and long operating lifetime under load.

Key Features

• Electrical performance — 390 µF rated capacitance with ±20% tolerance and 180 V rated voltage for bulk energy storage and smoothing in medium‑voltage circuits.
• Loss and leakage — Low loss tangent (tan δ = 0.15 at 20°C, 120 Hz) and a specified leakage current of 790 µA, supporting stable performance in DC applications.
• Ripple current capability — Rated ripple current of 1.35 A at 120 Hz (low frequency) and 2.025 A at 50 kHz (high frequency), enabling use with both line‑frequency and switching power topologies.
• Thermal and endurance — Operating temperature range from –40°C to +105°C with 3000 hours endurance at 105°C under rated ripple and DC bias.
• Package and mounting — Snap‑in, radial can package (φ25 × 25 mm) for secure board mounting; supplied in tray packing and available in mass production quantities.
• Regulatory compliance — RoHS compliant.

Typical Applications

• General‑purpose power supply filtering — Bulk smoothing and DC bus stabilization up to 180 V where sustained ripple handling and low loss are required.
• Switch‑mode power supplies — Input or output filtering for converters that subject capacitors to line and switching ripple, leveraging the specified ripple current at 120 Hz and 50 kHz.
• Energy storage and decoupling — Local energy reservoir for systems needing moderate capacitance and leakage characteristics aligned with long endurance at 105°C.

Unique Advantages

• High voltage rating (180 V): Enables use on higher‑voltage DC rails where medium‑voltage bulk capacitance is required.
• Dual‑frequency ripple performance: Specified ripple current at both 120 Hz and 50 kHz supports applications exposed to line‑frequency and high‑frequency switching stresses.
• 105°C, 3000‑hour endurance: Long life under rated ripple and temperature provides predictable long‑term performance in sustained thermal environments.
• Compact snap‑in can: φ25 × 25 mm radial package offers a space‑efficient solution with secure board mounting for through‑hole assemblies.
• Measured dielectric loss and leakage: tan δ = 0.15 (20°C, 120 Hz) and 790 µA leakage current help ensure stable impedance and predictable standby characteristics.
• RoHS compliance: Meets the RoHS directive for restricted substances.

Why Choose LGU2Z391MELA?

LGU2Z391MELA positions itself as a reliable, general‑purpose snap‑in aluminum electrolytic capacitor for designs that require 390 µF at 180 V with verified ripple current capability and 105°C endurance. Its combination of capacitance, voltage rating, low loss (tan δ), and specified leakage current make it suitable for designers seeking predictable bulk capacitance performance under continuous ripple stress.

This part is well suited to electrical and power supply engineers building medium‑voltage DC buses, switch‑mode supplies, and energy storage subsystems where long operating life, RoHS compliance, and a compact snap‑in package are important selection criteria.

If you would like pricing, lead‑time information, or a formal quotation for LGU2Z391MELA, please request a quote or submit an inquiry to our sales team.