LNU2W123MSEJ

The LNU2W123MSEJ is a screw‑terminal aluminum electrolytic capacitor from Nichicon's LNU series designed for high‑voltage industrial power applications. It is a polarized, radial can capacitor built for inverter and regenerative circuits where high DC voltage handling, high ripple capacity and robust thermal performance are required.

Rated at 12 mF and 450 V DC, the LNU2W123MSEJ combines high‑voltage capability with a smaller package footprint versus the LNT series, a high operating temperature rating up to 105°C, and a load life specification suited to demanding industrial use.

Key Features

• High Voltage Capability — Rated at 450 V DC (series rated up to DC525 V), enabling use in industrial inverter and power supply circuits that require elevated DC voltage handling.
• High Capacitance — 12 mF capacitance for energy storage and smoothing in power electronics and regenerative circuits.
• High Temperature Life — Designed for operation from −40°C to +105°C with a rated load life of 5000 hours at 105°C under rated ripple current conditions.
• High Ripple Current Handling — Ripple current specifications include 29.9 A at 120 Hz and 41.86 A at 10 kHz, supporting high‑frequency charge/discharge and regenerative loads.
• Screw Terminal Mounting — Radial can with screw terminals for secure electrical and mechanical connections in panel and bus configurations; brackets supplied separately per series documentation.
• Leakage and Endurance Characteristics — Leakage current after 5 minutes is specified not more than 3√CV (μA) or 5 mA (whichever is smaller) at 20°C; endurance criteria defined for 5000 hours at 105°C with D.C. bias plus rated ripple current.
• RoHS Compliant — Meets the RoHS directive (2011/65/EU, (EU)2015/863).
• Compact Mechanical Profile — Smaller sized than LNT series for space‑constrained designs; size dimension listed as L: 19.5 × D: 9 cm and maximum seated height 7.677 inch.

Typical Applications

• Industrial Inverters: Energy storage and smoothing for inverter DC links and power conditioning in factory automation and motor control systems.
• AC Servomotor Drives: Handling high‑frequency regenerative voltages and rapid charge‑discharge cycles in servo and motion control applications.
• Industrial Power Supplies: Bulk filtering and ripple suppression in high‑voltage industrial power supplies and converters.

Unique Advantages

• High‑Voltage, High‑Energy Storage: 12 mF at 450 V DC provides substantial stored energy for smoothing and transient support in power electronics.
• Thermal and Operational Durability: Rated for −40°C to +105°C operation with a 5000‑hour load life at 105°C, delivering predictable performance in hot industrial environments.
• High Ripple Current Capacity: Specified ripple current up to 41.86 A at 10 kHz supports high‑frequency regenerative and switching applications.
• Secure Screw‑Terminal Interface: Screw terminals and radial can construction simplify installation and maintenance in industrial assemblies.
• Space‑Efficient Design: Smaller sizing relative to the LNT series helps reduce cabinet and board space in densely packed power systems.
• Standards Compliance: RoHS compliance supports regulatory requirements for end products.

Why Choose LNU2W123MSEJ?

The LNU2W123MSEJ is positioned for engineers designing robust industrial power systems that require high DC voltage handling, high ripple capability and long‑term thermal endurance. Its combination of 12 mF capacitance at 450 V, high ripple current ratings, and a 5000‑hour life at 105°C make it suitable for inverter DC links, regenerative motor drives and other demanding power electronics applications.

Manufactured by Nichicon and RoHS compliant, this screw‑terminal capacitor delivers a balance of energy density, thermal reliability and installation practicality for industrial OEMs and power system integrators seeking a durable, serviceable electrolytic solution.

To request a quote or submit procurement information for LNU2W123MSEJ, please contact our sales team with your volume and delivery requirements.