LAQ2G181MELA40ZB

The LAQ2G181MELA40ZB is a Nichicon LAQ-series snap-in aluminum electrolytic capacitor rated 180 µF at 400 V. It is a radial, can-style snap-in device designed for general-purpose power-electronic applications that require high-voltage capacitance in a compact package.

Engineered for voltage-fluctuating environments, this part combines a wide operating temperature range (−25°C to +105°C), rated endurance of 2000 hours at 105°C, and elevated ripple-current capability for reliable performance in demanding industrial and power-supply systems.

Key Features

• Capacitance & Tolerance — 180 µF nominal with ±20% tolerance, specified at 120 Hz, 20°C.
• High Voltage Rating — 400 V rated voltage suitable for high-voltage DC filtering and energy storage.
• Snap-in Radial Can Package — Snap-in terminal mounting for secure PCB retention and robust mechanical connection in radial can form factor.
• High Ripple Current — 950 mA at 120 Hz (low frequency) and 1.093 A at 10 kHz (high frequency), supporting higher AC stress in power applications.
• Low Leakage — Specified leakage current of 800 µA (after rated voltage conditioning), aiding stable DC performance.
• Extended Endurance — 2000 hours life at 105°C with defined limits for capacitance change, tan δ, and leakage current after endurance testing.
• Wide Operating Temperature — −25°C to +105°C operational range for use across a broad set of environments.
• Safety & Robustness — LAQ series includes improved safety features for abnormal overvoltage conditions and a pressure-relief vent design to prevent dangerous conditions.
• Compact Dimensions — Body size φ25 × 40 mm, tray-packed for mass-production handling.
• RoHS Compliance — LAQ series components are indicated as compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Power Supply Filtering — Bulk and smoothing capacitor in high-voltage DC power supplies where 400 V rating and elevated ripple handling are required.
• Industrial Power Electronics — DC-link and energy-storage roles in equipment exposed to voltage fluctuations and high ambient temperatures.
• General-Purpose High-Voltage Circuits — Use in general-purpose circuits needing reliable high-voltage capacitance with long endurance at elevated temperatures.

Unique Advantages

• High Voltage Capability: 400 V rating enables use in higher-voltage DC systems without the need for stacking multiple capacitors.
• Elevated Ripple Tolerance: Specified ripple-current performance at both 120 Hz (950 mA) and 10 kHz (1.093 A) supports a range of switching and line-frequency conditions.
• Long Thermal Endurance: Rated for 2000 hours at 105°C, providing predictable long-term behavior in high-temperature installations.
• Compact Snap-in Form Factor: φ25 × 40 mm radial can with snap-in terminals offers space-efficient mounting and reliable PCB retention for production assemblies.
• Safety Features for Abnormal Voltage: Series-level design includes measures such as a pressure-relief vent and improved tolerance to abnormal voltages for safer operation under stress.
• Production-Ready Packaging: Tray packing and mass-production availability simplify procurement and assembly for volume manufacturing.

Why Choose LAQ2G181MELA40ZB?

The LAQ2G181MELA40ZB positions itself as a robust, production-ready high-voltage electrolytic solution for designers who need reliable 180 µF capacitance at 400 V. Its combination of elevated ripple-current capability, extended 105°C endurance, and snap-in radial package makes it suitable for power supplies and industrial equipment operating in thermally and electrically challenging environments.

For teams focused on long-term reliability and predictable electrical performance, this Nichicon LAQ-series part delivers defined specifications for leakage, impedance stability, and safety behavior, while offering compact packaging and tray-scale handling for streamlined manufacturing.

Request a quote or submit an inquiry for pricing, availability, and lead-time information for the LAQ2G181MELA40ZB to support your next design or production run.