LAQ2P391MELC25

The LAQ2P391MELC25 is an aluminum electrolytic, snap-in terminal capacitor from Nichicon’s LAQ series, rated at 390 µF and 220 V. It is designed for general-purpose power applications where high capacitance, elevated voltage rating and reliable ripple handling are required.

Key value comes from its combination of high-voltage capability, measurable ripple current performance at both low and high frequencies, and extended endurance at elevated temperature (2000 hours at 105°C), making it suitable for production environments requiring consistent, repeatable performance.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with ±20% tolerance and a 220 V rated voltage for higher-voltage DC bus and smoothing applications.
• Ripple Current Handling — Rated ripple current of 1.35 A at 120 Hz (low frequency) and 1.62 A at 100 kHz (high frequency), supporting mixed-frequency ripple environments.
• Thermal Performance & Endurance — Operating temperature range −25°C to +105°C with an endurance rating of 2000 hours at 105°C under rated DC bias plus ripple current.
• Loss & Leakage — Maximum tanδ (dissipation factor) of 0.20 at 20°C, 120 Hz and a specified leakage current of 870 µA for predictable electrical behavior.
• Safety Features — Built with a pressure relief vent to reduce risk under abnormal conditions, as described in product safety performance specifications.
• Mechanical & Packaging — Snap-in radial can (φ35 × 25 mm) for secure board mounting and tray packing for mass-production handling.
• Polarized Construction — Polarized aluminum electrolytic design for DC bus and filtering circuits.

Typical Applications

• Industrial Power Supplies — Bulk smoothing and energy storage on 220 V DC rails where elevated voltage rating and ripple capability are required.
• Inverters and Motor Drives — DC link and intermediate smoothing in systems that require sustained ripple current and operation up to 105°C.
• Commercial Power Electronics — General-purpose filtering and decoupling in equipment designed for long operational endurance and reliable safety behavior.

Unique Advantages

• High-voltage, high-capacitance option: 390 µF at 220 V provides substantial stored energy for DC bus smoothing without increasing stack complexity.
• Dual-frequency ripple capability: Specified ripple ratings at both 120 Hz and 100 kHz support designs exposed to both low- and high-frequency ripple components.
• Extended high-temperature endurance: 2000 hours at 105°C under rated conditions supports long-term reliability in thermally demanding installations.
• Predictable electrical characteristics: Low tanδ (≤0.20 at 20°C, 120 Hz) and specified leakage current enable stable performance and easier thermal/electrical budgeting.
• Safety-conscious construction: Pressure relief venting mitigates risk in abnormal conditions, supporting safer system behavior.
• Production-friendly packaging: Tray packing and a snap-in radial can footprint simplify automated assembly and handling for mass production runs.

Why Choose LAQ2P391MELC25?

LAQ2P391MELC25 positions itself as a robust, general-purpose electrolytic capacitor for designs that require a combination of high capacitance, elevated voltage rating and reliable ripple performance. Its specified endurance at 105°C and safety venting support deployments where long-term stability and safe failure modes are important.

This capacitor is well suited to engineers and procurement teams building industrial and commercial power electronics—especially where board-level snap-in mounting, tray-based production handling, and consistent electrical behavior are priorities.

Request a quote or submit a product inquiry to receive pricing, availability and production lead-time information from our sales team.