LAQ2G391MELC40

The LAQ2G391MELC40 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LAQ series, offering 390 µF capacitance at a 400 V rating in a compact radial can package (φ35 × 40 mm). Designed for general‑purpose power applications, it provides bulk energy storage and ripple handling where a high‑voltage, high‑temperature capacitor is required.

This part is optimized for sustained operation up to 105°C with a rated endurance of 2000 hours at 105°C, and is available in tray packing for production use.

Key Features

• Capacitance & Voltage: 390 µF nominal capacitance with a 400 V rated voltage for high‑voltage bulk energy storage and filtering.
• Snap‑in Radial Can Package: Snap‑in terminal mounting and radial can construction (φ35 × 40 mm) for secure chassis or board attachment in power assemblies.
• Temperature & Endurance: Rated operating temperature −25°C to +105°C with an endurance life of 2000 hours at 105°C under DC bias plus rated ripple current.
• Ripple Current Performance: Low‑frequency ripple current 1.59 A (120 Hz) and high‑frequency ripple current 1.829 A (10 kHz) to support smoothing and decoupling across a range of frequencies.
• Leakage Current: Specified leakage current 1180 µA (measured condition) and datasheet guidance I ≤ 3√C √(µA) for leakage evaluation after voltage application.
• Loss Tangent (tan δ): tan δ ≤ 0.20 at 120 Hz, 20°C, providing a defined dissipation characteristic for design margining.
• Polarity: Polarized capacitor for standard electrolytic circuit topologies.
• Packaging & Availability: Tray packing and mass production status for volume procurement and assembly planning.

Typical Applications

• General‑purpose power filtering: Bulk smoothing and ripple reduction in general electronic power circuits where 400 V rating and specified ripple currents are required.
• Power supply energy storage: DC link and charge‑storage in general equipment, leveraging 390 µF capacitance and high voltage rating for stable voltage support.
• High‑temperature environments: Use in assemblies operating up to 105°C where the 2000‑hour endurance rating provides predictable life under rated conditions.

Unique Advantages

• High voltage handling: 400 V rating enables use in higher‑voltage power stages without up‑rating multiple components.
• Defined high‑temperature life: 2000 hours at 105°C gives a clear reliability baseline for thermal stress planning.
• Frequency‑versatile ripple capability: Specified ripple current at both 120 Hz and 10 kHz supports performance across low and high ripple frequency components.
• Compact snap‑in form factor: φ35 × 40 mm snap‑in can simplifies mechanical retention in densely packaged power enclosures.
• Measured leakage specification: Provided leakage current value (1180 µA) and datasheet leakage guidance help with in‑circuit leakage budgeting and end‑of‑life assessments.
• Production readiness: Tray packing and mass production status streamline procurement and assembly for volume manufacturing.

Why Choose LAQ2G391MELC40?

The LAQ2G391MELC40 balances high voltage capability (400 V), a substantial capacitance (390 µF), and proven high‑temperature endurance (2000 hours at 105°C) in a compact snap‑in radial can. These attributes make it suitable for general‑purpose power filtering and energy storage where predictable thermal performance and ripple handling are required.

Designed and produced as part of Nichicon’s LAQ series, this capacitor offers verifiable specifications for leakage, tan δ, and ripple current that simplify engineering tradeoffs and long‑term planning for procurement and reliability teams.

For pricing, availability or to request a quote and technical details for integration, submit a request to sales or your procurement contact and include the part number LAQ2G391MELC40 and project requirements.