LNU2H102MSEF

The LNU2H102MSEF is a high-voltage aluminum electrolytic capacitor in a screw-terminal radial can designed for industrial power electronics. It delivers 1000 µF capacitance at a 500 V rating and is optimized for inverter and regenerative applications where high voltage, compact size, and robust thermal performance are required.

Engineered for sustained operation up to 105°C, this screw-terminal capacitor supports high-frequency charge–discharge and regenerative voltage environments typical in AC servomotor drives, general inverters, and industrial power supplies.

Key Features

• Capacitance & Voltage: 1000 µF (1 mF) nominal capacitance with a 500 V rated voltage; rated voltage range up to DC525 V.
• Screw Terminal Mounting: Radial can package with screw terminals for secure electrical and mechanical connection; nominal bolt size M5 for terminal attachment (φD 51 case dimension).
• High Temperature Endurance: Rated for operation from –40°C to +105°C with a load life of 5000 hours at 105°C under rated ripple conditions.
• High Ripple Capability: Specified ripple current of 5 A at 120 Hz and 7 A at 10 kHz, supporting both low- and high-frequency power waveforms.
• Charge–Discharge Endurance: Validated for extended charge–discharge behavior with endurance testing up to 50 million cycles (3 Hz) under specified conditions.
• Leakage & Insulation: Leakage current limited to 3√CV (µA) or 5 mA (whichever is smaller) after 5 minutes; insulation resistance >100 MΩ at DC 500 V between terminal and bracket.
• Compact Footprint: Smaller-sized high-voltage design (case nominal length 90 mm × diameter 51 mm) compared with prior LNT series options.
• Safety & Robustness: Voltage proof tested at AC 2500 V for 1 minute between terminal and bracket; marked with white print on black sleeve for clear identification.
• RoHS Compliant: Conforms to RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Power Supplies: Used in inverter power stages and DC bus filtering where high-voltage energy storage is required.
• AC Servomotor Drives: Supports high-frequency regenerative voltage in motor control circuits and drive systems.
• General Inverters and Regenerative Circuits: Suited for high-speed charge–discharge and regenerative energy handling in inverter topologies.

Unique Advantages

• High-Voltage Capability: Rated up to 500 V with a specified range to DC525 V, enabling use in higher-voltage inverter and regenerative systems.
• Compact, High-Density Design: Smaller-sized alternative to earlier LNT designs, saving board and enclosure space while maintaining voltage rating.
• Long High-Temperature Life: 5000-hour load life at 105°C under rated ripple current, providing predictable performance in hot industrial environments.
• Wide Frequency Ripple Support: Ripple specifications at both 120 Hz and 10 kHz make the part suitable for traditional and high-frequency power stages.
• Robust Mechanical Termination: Screw-terminal construction with M5 nominal bolt size ensures reliable electrical contact and mechanical retention in demanding installations.
• Proven Endurance: Endurance validation including prolonged charge–discharge cycling and voltage proof testing supports long-term reliability in regenerative and switching applications.

Why Choose LNU2H102MSEF?

The LNU2H102MSEF combines high-voltage performance, compact physical sizing, and durable screw-terminal connectivity to meet the needs of industrial inverter and regenerative applications. Its 1000 µF capacitance at 500 V, broad operating temperature range (–40°C to +105°C), and 5000-hour load life at elevated temperature make it well suited for designs that demand stable DC bus energy storage and resilience under continuous ripple stress.

This capacitor is appropriate for engineers specifying components for motor drives, inverter power supplies, and regenerative circuits where long-term thermal endurance, high ripple capability, and secure electrical termination are key selection criteria.

Request a quote or contact sales to discuss availability, lead times, and how the LNU2H102MSEF can meet your high-voltage energy storage requirements.