LAQ2G181MELC25

The LAQ2G181MELC25 from Nichicon is a snap‑in terminal type aluminum electrolytic capacitor in the LAQ series, rated 180 µF at 400 V. It is designed for general‑purpose high‑voltage power applications requiring high temperature endurance and secure snap‑in mounting.

With a compact φ35 × 25 mm can and radial snap‑in package, this part targets power conversion, smoothing and bulk energy storage uses where rated voltage, ripple handling, and long‑term stability at elevated temperature are required.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance with a 400 V rated DC voltage and ±20% tolerance at 120 Hz, 20°C.
• Snap‑in Radial Package — Radial can with snap‑in terminals for robust board mounting and mechanical retention in high‑energy applications.
• High Temperature Operation — Rated operating temperature range −25°C to +105°C with endurance specified for 2000 hours at 105°C under DC bias plus rated ripple current.
• Ripple Current Capability — Specified ripple current of 950 mA at 120 Hz and 1.093 A at 10 kHz, enabling effective filtering under dynamic loads.
• Leakage & Dissipation — Leakage current specified as I ≤ 3√C (µA) after 5 minutes at 20°C; tangent of loss angle (tan δ) 0.20 max at 120 Hz, 20°C.
• Endurance & Shelf Life — Endurance: capacitance change within ±20% and leakage equal to or less than initial specified value after 2000 hours at 105°C; shelf life behavior defined after 1000 hours at 105°C with post‑treatment limits.
• Safety Feature — Pressure relief vent designed to operate without creating dangerous conditions such as flames or dispersion of the case.
• Compliance — RoHS compliant for restricted‑substance requirements.

Typical Applications

• Power Supplies: Bulk energy storage and smoothing for high‑voltage DC power supplies where 400 V rating and ripple handling are required.
• Industrial Power Electronics: Filtering and decoupling in converters and inverters that operate at elevated temperatures up to 105°C.
• Backup & UPS Systems: Energy buffering and transient suppression in general‑purpose backup power modules.

Unique Advantages

• High‑Voltage Capability: 400 V rating enables use in higher‑voltage power rails without additional series stacking.
• High‑Temperature Endurance: Qualified for 2000 hours at 105°C under DC bias plus rated ripple current, supporting long service life in hot operating environments.
• Measured Ripple Performance: Specified ripple currents at both 120 Hz and 10 kHz provide clear guidance for thermal and reliability design.
• Robust Mechanical Mounting: Snap‑in radial can provides secure PCB retention and straightforward assembly for high‑energy circuits.
• Safety‑Oriented Design: Pressure relief vent operation reduces the risk of hazardous failure modes under abnormal conditions.
• Regulatory Compliance: RoHS compliance supports use in designs targeting global restricted‑substance requirements.

Why Choose LAQ2G181MELC25?

LAQ2G181MELC25 combines a high 400 V rating with substantial capacitance and defined ripple performance in a snap‑in radial package, making it well suited for designers of high‑voltage power supplies, industrial converters, and backup systems that require reliable bulk capacitance at elevated temperatures. The LAQ series’ endurance and safety specifications provide verifiable performance data for life‑cycle and thermal design considerations.

Choose this part when your design needs a RoHS‑compliant, high‑voltage electrolytic solution with documented endurance, leakage, and ripple characteristics from a known capacitor family.

Request a quote or submit an inquiry to discuss pricing, availability, lead times, and technical support for LAQ2G181MELC25.