LAK2G390MELZ20

The LAK2G390MELZ20 is a snap-in, aluminum electrolytic capacitor designed for general-purpose, high-voltage applications. It combines a 39 µF capacitance with a 400 V rated voltage and is optimized for systems exposed to voltage fluctuation and elevated operating temperatures.

Built on the LAK series platform, this component delivers extended endurance at high temperature, controlled loss characteristics, and snap-in packaging for streamlined assembly in volume production.

Key Features

• Core Electricals — 39 µF, 400 V: Rated capacitance of 39 µF with a 400 V DC rating for high-voltage energy storage and filtering.
• High-temperature Endurance: Specified for 2000 hours at 105°C under rated conditions, with defined endurance limits for capacitance, tan δ and leakage current after test.
• Loss Angle (tan δ): 0.20 maximum (measured at 120 Hz, 20°C), providing predictable dissipation characteristics for filter and smoothing applications.
• Ripple Current Capability: 300 mA at low frequency (120 Hz) and 345 mA at high frequency (100 kHz), supporting AC ripple handling in power circuits.
• Low Leakage Current: Product-level leakage current specified at 370 µA (after initial application conditions), enabling stable long-term performance.
• Snap-in Radial Can Package: Snap-in terminals and radial can construction simplify board-level mounting and fast assembly for production runs.
• Operating Temperature Range: Rated for operation from -25°C to +105°C to address elevated-temperature environments.
• Safety Features: Series-level safety design includes a pressure relief vent to operate under abnormal conditions without dangerous dispersion.
• Regulatory Compliance: RoHS compliant as specified for the LAK series.

Typical Applications

• High-voltage power supplies: Filtering and energy storage in power supplies that require a 400 V-rated capacitor with defined ripple capability.
• Industrial equipment in fluctuating-voltage environments: Suited to equipment exposed to voltage swings thanks to series-level improved safety for abnormal voltages.
• DC-link smoothing for converters and inverters: Provides DC-link capacitance and ripple handling in commercial and industrial converter designs.
• General-purpose electronic systems: Used where polarized, high-voltage aluminum electrolytic capacitors are required for bulk capacitance and smoothing.

Unique Advantages

• High-voltage capability: 400 V rating enables use in higher-voltage circuits without additional derating.
• Long high-temperature life: 2000-hour endurance at 105°C provides predictable aging and reliability for elevated-temperature applications.
• Measured ripple performance: Specified ripple currents at both low and high frequencies simplify margining and thermal planning.
• Safety-minded design: Pressure relief vent and series-level abnormal voltage handling reduce risk in fluctuating-voltage conditions.
• Production-ready packaging: Snap-in radial can and tray packing support efficient assembly and volume manufacturing workflows.
• Regulatory alignment: RoHS compliance supports use in regulated markets and simplifies environmental conformity planning.

Why Choose LAK2G390MELZ20?

The LAK2G390MELZ20 offers a combination of 39 µF capacitance at a 400 V rating with defined endurance and safety characteristics from the LAK series. Its snap-in radial can construction and specified ripple and leakage parameters make it suitable for engineers designing robust, high-voltage power systems and general-purpose industrial electronics.

This part is positioned for customers seeking a reliable, production-friendly electrolytic capacitor with documented high-temperature performance, controlled loss behavior, and safety features for environments where voltage can fluctuate. It provides a clear specification set to support engineering validation and procurement for volume builds.

Request a quote or submit a product inquiry to start evaluation and procurement of the LAK2G390MELZ20. Provide your project details and required quantities to receive application-specific pricing and availability information.