LAK2G181MELZ50

The LAK2G181MELZ50 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LAK series, specified at 400 V and 180 µF. It is a polarized, radial can snap‑in package designed for general purpose use and for equipment operating in areas with fluctuating voltages.

This part offers extended voltage capability and endurance under elevated temperature and ripple conditions, delivering stable capacitance and controlled leakage for demanding power‑electronic environments.

Key Features

• Rated Capacitance: 180 µF with ±20% tolerance, providing bulk energy storage for high‑voltage rails.
• High Voltage Rating: 400 V nominal rating for use on higher DC bus and filter applications within the LAK series' extended voltage range.
• High‑Temperature Endurance: Endurance specified as 2000 hours at 105°C with rated ripple current applied, supporting sustained operation at elevated ambient temperatures.
• Ripple Current Capability: 800 mA at 120 Hz and 920 mA at 10 kHz, enabling effective ripple handling for power supply smoothing and filtering.
• Snap‑In, Radial Can Package: 22 mm diameter × 50 mm length with snap‑in terminals for secure mechanical mounting and efficient PCB assembly.
• Safety and Reliability: Improved safety features for abnormally excessive voltage, including a pressure relief vent that operates under abnormal conditions to avoid dangerous failures.
• Operating Range & Compliance: Polarized device rated for −25°C to +105°C and RoHS compliant per the referenced directives.

Typical Applications

• High‑voltage power filtering: Bulk smoothing and DC bus filtering where a 400 V, 180 µF capacitor is required to stabilize supply rails.
• Equipment in voltage‑fluctuating areas: Designed for use in systems exposed to variable line conditions, leveraging the LAK series' improved safety features and extended voltage range.
• General purpose power electronics: Applicable to power supplies and assemblies requiring a snap‑in, high‑voltage electrolytic capacitor with defined ripple current and temperature endurance.

Unique Advantages

• Extended voltage capability: 400 V rating supports higher DC bus designs without the need for multiple lower‑voltage parts in series.
• Proven thermal endurance: 2000 hours at 105°C under rated ripple current reduces the need for frequent component replacement in high‑temperature applications.
• Measured ripple handling: Specified ripple current at both low (120 Hz) and high (10 kHz) frequencies enables predictable thermal and performance behavior in real‑world circuits.
• Snap‑in mounting: Radial snap‑in can simplifies mechanical retention and assembly for power modules and PCB stacks.
• Safety‑oriented design: Pressure relief venting and improved safety measures mitigate hazards under abnormal voltage stress.
• RoHS compliance: Meets applicable RoHS directives for environmental compliance in commercial and industrial products.

Why Choose LAK2G181MELZ50?

LAK2G181MELZ50 combines a high 400 V rating with substantial capacitance and defined ripple‑current performance, making it well suited for designers building power supplies and equipment exposed to fluctuating voltages. The LAK series' endurance at 105°C and safety features address reliability and operational safety in demanding environments.

This Nichicon part is aimed at engineers and procurement teams seeking a robust, snap‑in aluminum electrolytic solution for general purpose power electronics where predictable thermal behavior, voltage tolerance, and assembly convenience are priorities.

Request a quote or submit an inquiry to receive pricing and availability information for LAK2G181MELZ50 and to discuss how this capacitor fits your design requirements.