LAK2G391MELC45

The LAK2G391MELC45 is a snap-in terminal type aluminum electrolytic capacitor from Nichicon's LAK series designed for general-purpose power applications. It delivers 390 µF capacitance at a 400 V rated voltage with robust endurance—specified for 2000 hours at 105°C—making it suitable for equipment exposed to fluctuating voltages and demanding thermal conditions.

Engineered with safety features and long-life performance, this radial can (snap-in) capacitor is offered in tray packing for mass production environments and is RoHS compliant.

Key Features

• Capacitance & Voltage: 390 µF nominal capacitance with a 400 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• High-temperature Endurance: Rated for 2000 hours operation at 105°C; meets endurance criteria for capacitance, tan δ and leakage current after DC bias plus rated ripple current testing.
• Loss & Leakage Characteristics: Tangent of loss angle (tan δ) ≤ 0.20 at 120 Hz and 20°C; leakage current specified I ≤ 3√(C·V) µA after 5 minutes at 20°C.
• Ripple Current Capability: Rated ripple current of 1.32 A at 120 Hz and 1.518 A at 10 kHz for effective filtering and smoothing in power circuits.
• Package & Mounting: Snap-in radial can package (φ35 × 45L) designed for secure board mounting and efficient assembly; supplied in tray packing for production use.
• Safety Features: Pressure relief vent designed to operate without dangerous conditions such as flames or dispersion of case fragments under abnormal voltage stress.
• Operating Temperature Range: −25°C to +105°C, supporting a wide range of general-purpose and industrial environments.
• Compliance & Marking: RoHS compliant; sleeve marked with white letters on a black sleeve for clear identification.

Typical Applications

• Industrial Power Supplies: Bulk energy storage and smoothing in general-purpose power conversion equipment, especially where voltage can fluctuate.
• Commercial Equipment: Filtering and decoupling in general-purpose electronic equipment requiring long-life electrolytic capacitors operating up to 105°C.
• Power Conditioning Modules: Use in modules that require reliable ripple handling and long-term stability under elevated temperatures.

Unique Advantages

• Long High-Temperature Life: 2000-hour rating at 105°C provides predictable longevity in elevated-temperature deployments.
• Voltage-Robust Design: 400 V rating and improved safety features make it suitable for equipment in voltage-fluctuating areas.
• Measured AC Performance: Specified ripple current values at both low and high frequencies (120 Hz and 10 kHz) support designers selecting capacitors for real-world ripple environments.
• Quantifiable Electrical Limits: Clear tan δ and leakage current specifications (tan δ ≤ 0.20; I ≤ 3√(C·V) µA) simplify design margin calculations and reliability assessments.
• Production-friendly Packaging: Tray packing supports automated assembly and volume manufacturing workflows.
• RoHS Compliant: Enables use in designs that require RoHS directive conformity.

Why Choose LAK2G391MELC45?

The LAK2G391MELC45 combines high-voltage capability, long-duration high-temperature endurance, and explicit electrical limits to deliver a reliable choice for general-purpose power applications. Its snap-in radial can package and tray packing format make it practical for production environments, while built-in safety features address abnormal voltage conditions.

This part is well suited to designers and procurement teams specifying capacitors for industrial and commercial power systems that require predictable lifetime behavior, clear ripple and leakage specifications, and compliance with RoHS requirements.

If you would like pricing, lead-time or to request a quote for LAK2G391MELC45, please contact sales or submit a request for a quote through your preferred procurement channel.