LAQ2G181MELB30

The LAQ2G181MELB30 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LAQ series, offering 180 µF capacitance at a 400 V rating in a compact φ30 × 30 mm can. It is designed for general‑purpose power applications that require high voltage capability, robust ripple handling and long endurance at elevated temperatures.

With a -25 °C to 105 °C operating range and a specified 2000 hours endurance at 105 °C, this snap‑in radial capacitor balances compact size with durability for board‑level power filtering and energy smoothing in 400 V systems. Tray packing and mass production status support volume assembly and procurement.

Key Features

• Electrical Performance: 180 µF nominal capacitance with ±20% tolerance and 400 V rated voltage for high‑voltage DC applications.
• Low Losses: tanδ ≤ 0.20 measured at 20 °C, 120 Hz, indicating controlled dielectric loss for stable performance under AC ripple.
• Ripple Current Capability: Handles 950 mA at 120 Hz (low frequency) and 1.093 A at 10 kHz (high frequency) to support smoothing under moderate to high ripple conditions.
• Leakage Current: Specified leakage current of 800 µA after standard voltage application conditions.
• Thermal and Endurance Rating: Operating temperature range −25 °C to +105 °C with 2000 hours endurance at 105 °C under rated bias and ripple current.
• Package and Mounting: Snap‑in radial can (φ30 × 30 mm) for secure PCB mounting and ease of assembly; supplied in tray packing for production handling.
• Compliance and Availability: RoHS compliant and available in mass production quantities.

Typical Applications

• General‑purpose power filtering: Bulk smoothing and decoupling in 400 V DC systems where a 180 µF capacitance and robust ripple handling are required.
• Power supply energy buffering: Local energy storage on DC rails to stabilize voltage during load transients at elevated temperatures.
• Switch‑mode power supplies (SMPS): Input/output filtering and ripple attenuation where 400 V rating and specified ripple currents meet application needs.

Unique Advantages

• 400 V capability: Supports high‑voltage DC systems without the need for series stacking, simplifying design.
• High‑temperature endurance: Rated to 105 °C with a 2000 h life specification, offering predictable performance in thermally demanding environments.
• Designed for ripple stress: Explicit low‑ and high‑frequency ripple current ratings (950 mA @120 Hz, 1.093 A @10 kHz) help ensure reliable operation under mixed ripple spectra.
• Compact snap‑in package: φ30 × 30 mm snap‑in can provides a space‑efficient solution with secure board retention for production assemblies.
• Low dissipation factor: tanδ ≤ 0.20 at 20 °C, 120 Hz reduces internal heating and contributes to stable long‑term behavior.
• Production readiness: RoHS compliance, tray packing and mass production status support scalable procurement and manufacturing integration.

Why Choose LAQ2G181MELB30?

The LAQ2G181MELB30 delivers a balanced combination of high voltage rating, compact snap‑in packaging and verified endurance at 105 °C, making it suitable for designers who need reliable bulk capacitance and ripple handling in 400 V systems. Its defined leakage, loss tangent and ripple current specifications allow engineers to evaluate thermal and electrical performance precisely for sustained operation.

This part is appropriate for general‑purpose power electronics designs where predictable lifetime, tray packing for assembly, and RoHS compliance are part of the procurement and manufacturing requirements.

Request a quote or submit a technical inquiry to obtain pricing, lead time and volume availability for LAQ2G181MELB30. Our team can provide ordering details and support for integration into your designs.