LAQ2G181MELA40

The LAQ2G181MELA40 is a snap-in terminal aluminum electrolytic capacitor from Nichicon’s LAQ series. It provides 180 µF capacitance at a 400 V rated voltage in a compact radial can with snap-in mounting for secure board retention.

Designed for general-purpose power circuits, this capacitor combines a 105°C permissible abnormal-voltage rating, defined endurance (2000 hours at 105°C), and measurable ripple-current capability to support applications that require robust DC bias handling and elevated operating temperatures.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance with a 400 V rated voltage and ±20% tolerance, suitable where mid-range energy storage and high-voltage handling are required.
• High Temperature Endurance — Rated for operation up to 105°C with an endurance rating of 2000 hours at 105°C when DC bias plus rated ripple current is applied, with capacitance change within ±20% after endurance testing.
• Snap-in Radial Package — Radial can with snap-in terminals for reliable mechanical retention and straightforward PCB assembly in through-hole layouts.
• Ripple Current Capability — Specified ripple current handling of 950 mA at 120 Hz and 1.093 A at 10 kHz, enabling performance under AC ripple conditions common in power supply circuits.
• Leakage Current and Dissipation — Series leakage current characteristic meets I ≤ 3√C μA after five minutes at 20°C; tangent of loss angle (tan δ) specified at 0.20 max (120 Hz, 20°C) per LAQ series data.
• Safety Features — Pressure-relief venting is provided as part of the LAQ series safety performance to mitigate risk under abnormal conditions without dangerous dispersion or ignition.
• Physical Size — Compact dimensions (L: 4 × D: 2.5 cm) for space-conscious designs while maintaining high-voltage capability.

Typical Applications

• Power supply filtering — 400 V rating and defined ripple-current handling make this capacitor suitable for smoothing and filtering DC rails subject to ripple current and DC bias.
• General-purpose industrial electronics — The 105°C rating and 2000-hour endurance at elevated temperature support longer-term operation in industrial power modules and control systems.
• Commercial power equipment — Snap-in mounting and compact can package provide a durable option for commercial power conversion and energy-storage assemblies where through-hole mounting is preferred.

Unique Advantages

• High-voltage capability: 400 V rated voltage enables use in higher-voltage DC link and power supply stages without resorting to parallel devices.
• Elevated temperature endurance: 105°C permissible abnormal-voltage rating and 2000-hour endurance at 105°C improve reliability in thermally demanding environments.
• Measured ripple performance: Published ripple-current values at 120 Hz and 10 kHz help designers size capacitors for real ripple-loading conditions and thermal trade-offs.
• Robust leakage and dissipation specs: Series-defined leakage current limit and tan δ specification provide verifiable electrical characteristics for system-level power budgets.
• Snap-in mounting for secure assemblies: Snap-in terminals simplify mechanical retention on PCBs and support reliable through-hole assembly processes.
• Compact footprint: L: 4 × D: 2.5 cm dimensions deliver high-voltage, moderate-capacitance performance in a smaller-sized can for constrained layouts.

Why Choose LAQ2G181MELA40?

The LAQ2G181MELA40 is positioned for designers needing a proven, general-purpose aluminum electrolytic capacitor that balances 400 V voltage capability, compact packaging, and elevated temperature endurance. Its defined ripple-current ratings, leakage and dissipation specifications, and snap-in mounting make it suitable for through-hole power designs where predictable performance under DC bias and elevated temperature is required.

This part is well suited for engineering teams and procurement sourcing capacitors for industrial and commercial power electronics that require clear electrical and environmental limits, backed by Nichicon’s LAQ series specifications and datasheet-defined performance parameters.

If you would like pricing or availability for the LAQ2G181MELA40, request a quote or submit a quotation request and our team will provide the required information.