LAK2G181MELC25ZB

The LAK2G181MELC25ZB is a Nichicon LAK series snap-in aluminum electrolytic capacitor rated at 180 µF and 400 V. It is a snap-in terminal, radial can design engineered for general-purpose use where high-voltage capability, long-term endurance and enhanced safety under abnormal voltage are required.

With a 2000-hour endurance rating at 105°C, low-frequency and high-frequency ripple handling, and RoHS compliance, this capacitor suits equipment operating in voltage-fluctuating environments and other high-voltage DC applications that require reliable bulk capacitance and safety features.

Key Features

• Electrical Performance — 180 µF nominal capacitance at a rated voltage of 400 V with ±20% tolerance and a maximum tan δ of 0.20 (120 Hz, 20°C).
• Leakage Current — Specified leakage current of 800 µA after standard application conditions.
• Ripple Handling — Designed for 800 mA low-frequency ripple at 120 Hz and 920 mA high-frequency ripple at 10 kHz to support DC filtering and smoothing across frequency ranges.
• Thermal & Endurance — Operates from −25°C to +105°C and is specified to withstand 2000 hours of rated ripple current application at 105°C.
• Mechanical & Mounting — Snap-in terminal, radial can package (φ35 × 25 mm), supplied in tray packing for repeatable assembly and secure board retention.
• Safety & Compliance — LAK series includes improved safety features for abnormally excessive voltage and a pressure-relief vent design; the product is RoHS compliant.

Typical Applications

• General-purpose power equipment — Bulk capacitance and ripple handling for high-voltage DC rails in equipment intended for general industrial and commercial use.
• Voltage-fluctuating environments — Designed and specified for use in equipment exposed to fluctuating supply voltages, benefiting from extended voltage range and enhanced safety features.
• High-voltage DC filtering — 400 V rating and 180 µF capacitance provide smoothing and energy storage for high-voltage DC circuits.
• Industrial power supplies — Endurance at 105°C and specified ripple performance support continuous operation in demanding thermal conditions.

Unique Advantages

• High-voltage capability — 400 V rating enables use directly on high-voltage DC rails without series stacking.
• Dual-frequency ripple performance — Specified ripple currents at both 120 Hz and 10 kHz provide predictable behavior across common power-conversion frequencies.
• Long high-temperature life — 2000 hours endurance at 105°C under rated ripple current reduces replacement frequency in high-temperature installations.
• Snap-in radial package — Secure mechanical retention and straightforward PCB mounting for automated assembly processes; tray packing aids handling.
• Safety-oriented design — Improved safety features for abnormal voltage conditions and a pressure-relief vent reduce hazardous failure modes.
• Regulatory compliance — RoHS compliance supports use in regions and projects requiring lead-free/ROHS components.

Why Choose LAK2G181MELC25ZB?

The LAK2G181MELC25ZB balances high-voltage capability, robust ripple handling and long-term thermal endurance in a snap-in, radial can package. Its combination of 400 V rating, 180 µF capacitance, and 2000-hour endurance at 105°C makes it well suited to designs that need reliable bulk energy storage and smoothing in challenging thermal and electrical environments.

This part is ideal for engineers and procurement teams specifying capacitors for high-voltage DC filtering, industrial power supplies and equipment exposed to supply fluctuations where verified safety features and RoHS compliance are important considerations.

Request a quote or contact our sales team to discuss availability, lead times and how LAK2G181MELC25ZB can be integrated into your next design. Please reference the part number when submitting inquiries.