LNU2H122MSEG

The LNU2H122MSEG is a screw-terminal aluminum electrolytic capacitor in Nichicon’s LNU series, designed for high-voltage power electronics. It combines a 500 V rated voltage with 1200 µF capacitance, a compact radial can with screw terminals, and a rated operating range of –40 °C to 105 °C for industrial power applications.

Targeted at inverter and regenerative circuits, this unit delivers high ripple-current capability and a long 5000-hour load life at 105 °C, providing stable filtering and energy buffering in demanding power-supply and motor-drive environments.

Key Features

• Capacitance & Voltage — 1200 µF capacitance at a 500 V DC rating for high-voltage energy storage and smoothing in power electronics.
• Screw Terminal Mounting — Radial can with screw terminals and M5 bolt accommodation for secure, low-impedance connections in cabinet and chassis installations.
• High Temperature Endurance — Rated for continuous operation from –40 °C to 105 °C with a specified load life of 5000 hours at 105 °C.
• High Ripple Current Handling — 5.7 A at 120 Hz (low frequency) and 7.98 A at 10 kHz (high frequency) to support high-speed charge/discharge and regenerative currents.
• Leakage and Loss Characteristics — Specified leakage current of 2320 µA and tan δ of 0.2 for predictable performance and verification in design.
• Size and Packaging — 63.5 mm diameter × 80 mm length (approx. 6.35 cm × 8.0 cm) in a compact high-voltage can; shipped in cardboard packing for mass production handling.
• RoHS Compliant — Manufacture and materials meet RoHS requirements.

Typical Applications

• Industrial Inverters — Bulk filtering and energy storage for inverter front-ends where high DC voltage and sustained ripple currents are required.
• Servo Drives and Motor Control — Energy buffering and regenerative voltage handling for AC servomotors and high-frequency regenerative circuits.
• Power Supply Filtering — Smoothing and decoupling in high-voltage power supplies and DC link applications.
• Regenerative Energy Circuits — Supports rapid charge/discharge cycles and high-frequency regenerative currents in power-recovery systems.

Unique Advantages

• High-Voltage Capability: 500 V rating enables use in high-voltage DC-link and inverter applications without series stacking.
• Designed for High Ripple Loads: Separate ripple ratings at 120 Hz and 10 kHz provide clear guidance for both low- and high-frequency design conditions.
• Long Thermal Life: 5000 hours at 105 °C ensures predictable endurance under elevated-temperature load conditions common in power electronics racks.
• Secure Screw-Terminal Interface: Screw terminals (M5 nominal bolt) simplify installation and provide robust electrical and mechanical connections for high-current systems.
• Compact High-Voltage Form Factor: Series design optimized for higher voltage in a smaller-sized can, allowing denser packaging in constrained enclosures.
• RoHS Compliance: Materials and manufacturing comply with RoHS, supporting regulatory requirements for industrial equipment.

Why Choose LNU2H122MSEG?

The LNU2H122MSEG positions itself as a high-voltage, high-ripple-capacity aluminum electrolytic capacitor for engineers building inverter, servo, and industrial power supplies. With a 500 V rating, 1200 µF capacitance, robust screw-terminal mounting, and a 5000-hour life at 105 °C, it delivers predictable performance for demanding DC-link and regenerative applications.

This product is suitable for designs that require durable, high-voltage energy storage with clear ripple-current specifications and controlled leakage characteristics. Its combination of endurance, terminal reliability, and RoHS compliance supports long-term production deployments and easier integration into industrial power systems.

Request a quote or contact sales to discuss pricing, lead times, and availability for the LNU2H122MSEG. Our team can provide volume pricing and delivery options to support your project schedule.