LGU2Z681MELC

The LGU2Z681MELC is a Nichicon LGU series aluminum electrolytic capacitor in a snap-in terminal radial can. It provides 680 µF capacitance at a rated voltage of 180 V with polarized construction for general-purpose power electronics use.

Designed for sustained operation, this part delivers high ripple-current handling and long-term endurance — specified for 3,000 hours at 105°C — and is RoHS compliant, making it suited to demanding industrial and power-conversion environments.

Key Features

• Electrical Performance: 680 µF capacitance with ±20% tolerance and a rated voltage of 180 V; polarized design for DC power applications.
• Dissipation Factor (tan δ): tanδ = 0.15 (measured at 20°C, 120 Hz), providing the specified loss characteristics at nominal test conditions.
• Leakage Current: Rated leakage current of 1040 µA (measured after voltage application at 20°C), allowing predictable standby and quiescent behavior.
• Ripple Current Capability: Low-frequency ripple current 1.78 A at 120 Hz and high-frequency ripple current 2.67 A at 50 kHz, supporting both mains-frequency filtering and higher-frequency power-conversion demands.
• Reliability & Endurance: Specified endurance of 3,000 hours at 105°C with requirements for capacitance, tanδ, and leakage current met after test conditions.
• Operating Temperature: Rated for −40°C to +105°C operation, covering a wide industrial temperature range.
• Package & Mounting: Snap-in terminal, radial can package (φ35 × 25L mm) packaged in trays for production assembly.
• Environmental: RoHS compliant.

Typical Applications

• Industrial Power Supplies: Bulk energy storage and smoothing to support stable DC rails in industrial and control power supplies, leveraging the 180 V rating and 680 µF capacitance.
• Inverters and Motor Drives: DC-link smoothing and ripple absorption for power conversion stages where elevated ripple-current capability and 105°C endurance are required.
• UPS and Backup Systems: Energy storage and filtering in uninterruptible power supplies and backup power modules that demand long-life operation at elevated temperatures.
• Power Conversion Modules: Filtering and decoupling in converters and choppers that operate across a broad temperature range and require snap-in mounting for robust PCB retention.

Unique Advantages

• High ripple-current tolerance: Specified low-frequency and high-frequency ripple currents (1.78 A at 120 Hz; 2.67 A at 50 kHz) enable effective filtering across common power-electronics frequencies.
• Long 105°C endurance: 3,000-hour life rating at 105°C provides predictable aging characteristics for designs exposed to sustained elevated temperatures.
• Compact snap-in footprint: φ35 × 25L mm radial can with snap-in terminals supports secure PCB mounting and automated assembly in power modules.
• Measured loss characteristics: tanδ = 0.15 at 20°C, 120 Hz gives designers a clear reference for ESR-related losses in thermal and efficiency calculations.
• RoHS compliant: Meets environmental compliance requirements for regulated markets and supply chains.

Why Choose LGU2Z681MELC?

LGU2Z681MELC combines a high-voltage 180 V rating, substantial 680 µF capacitance, and validated ripple-current capability to address demanding power-filtering and energy-storage needs. Its 3,000-hour endurance at 105°C and −40°C minimum operating temperature make it suitable for industrial power electronics where long-term reliability and thermal endurance matter.

This part is well suited to designers and procurement teams specifying robust electrolytic solutions for power supplies, inverters, UPS systems, and power conversion modules that require predictable electrical characteristics and tray-packaged snap-in mounting for production assembly.

Request a quote or submit an inquiry for LGU2Z681MELC to receive pricing and availability information for your project.