LAK2G331MELB50ZB

The LAK2G331MELB50ZB is an aluminum electrolytic capacitor in the Nichicon LAK series featuring a snap-in terminal design. It provides 330 µF capacitance at a 400 V rating and is engineered for general-purpose power applications where high-voltage smoothing and energy buffering are required.

Designed for use in environments with voltage fluctuation, this snap-in radial can delivers long-term performance with 2000 hours endurance at 105°C and includes safety measures for abnormal overvoltage conditions. Tray packing and mass-production readiness support volume manufacturing.

Key Features

• Electrical Performance — 330 µF capacitance with ±20% tolerance and a 400 V rated voltage for high-voltage smoothing and filtering.
• High Ripple Capability — Rated ripple current of 1.21 A at 120 Hz and 1.391 A at 10 kHz to handle AC ripple in power electronics.
• Temperature & Lifetime — Operating temperature range of -25°C to +105°C with endurance specified as 2000 hours at 105°C under D.C. bias plus rated ripple current.
• Reliability Limits — Endurance criteria include capacitance change within ±20%, tan δ up to 200% of initial, and leakage current ≤ initial specified value after endurance testing.
• Safety Features — Pressure relief vent designed to operate without flames, ignition, or dispersion of parts under abnormal conditions.
• Mechanical & Mounting — Snap-in, radial can package (φ30×50L) for secure board retention in high-volume assembly.
• Compliance — RoHS compliant.

Typical Applications

• Industrial Power Supplies — Bulk smoothing and ripple suppression in high-voltage power supplies operating in fluctuating-voltage environments.
• Inverters & Motor Drives — Energy buffering and decoupling where robust high-voltage capacitance and ripple handling are required.
• Uninterruptible Power Systems (UPS) — Energy storage and transient suppression in systems that demand long endurance at elevated temperatures.
• Power Conditioning Equipment — Stabilizing DC rails and absorbing voltage fluctuations in general-purpose power-conditioning modules.

Unique Advantages

• Long High-Temperature Endurance: 2000 hours at 105°C under rated conditions provides predictable aging characteristics for thermal-stressed designs.
• High-Voltage Capability: 400 V rating enables use in higher-voltage power electronics without series stacking.
• Robust Ripple Handling: Specified ripple current at both low and high frequencies supports reliable operation across switching and line-frequency conditions.
• Safety-Minded Design: Pressure relief vent reduces risk during abnormal overvoltage events by preventing flame or dispersion of casing pieces.
• Production-Ready Packaging: Tray packing and snap-in mounting simplify high-volume assembly and secure PCB installation.
• Regulatory Compliance: RoHS compliance for use in environmentally regulated products.

Why Choose LAK2G331MELB50ZB?

The LAK2G331MELB50ZB balances high-voltage performance, thermal endurance, and safety for general-purpose power electronics. Its 400 V rating, 330 µF capacitance, and specified ripple currents make it suitable for designs that require reliable smoothing and energy buffering under elevated temperature and fluctuating-voltage conditions.

Backed by Nichicon’s LAK series specifications, this snap-in, tray-packed capacitor is aimed at engineers and procurement teams designing volume power systems that need predictable long-term behavior and production-friendly packaging.

Request a quote or contact sales to discuss pricing, lead times, and sample availability for the LAK2G331MELB50ZB.