LNU2W123MTEJ

The LNU2W123MTEJ is an aluminum electrolytic capacitor in a screw-terminal radial can designed for high-voltage industrial power applications. It combines a 12 mF capacitance with a 450 V rated voltage and a –40 °C to 105 °C operating range for use where high voltage handling and elevated operating temperature endurance are required.

Engineered for inverter and regenerative circuits, this stud-bolt-mount capacitor supports high-speed charge–discharge loading and long-life operation—rated for 5000 hours under ripple-current stress at 105 °C. The part is RoHS compliant for regulatory peace of mind.

Key Features

• High voltage capability — Rated at 450 V DC with series ratings up to DC 525 V, suitable for elevated-voltage inverter and power-supply stages.
• Large capacitance — 12 mF nominal capacitance with ±20% tolerance (120 Hz, 20 °C) for bulk energy storage and smoothing.
• High-temperature endurance — Specified to operate from –40 °C to 105 °C and meeting endurance requirements after 5000 hours at 105 °C with rated ripple current applied.
• High ripple-current performance — Supports 29.9 A at 120 Hz and 41.86 A at 10 kHz, enabling effective filtering under heavy AC ripple and high-frequency regenerative conditions.
• Robust mounting and terminations — Stud bolt mount with screw terminals in a radial can package for secure mechanical and electrical connections in industrial assemblies.
• Charge–discharge durability — Designed to cope with high-speed charge–discharge loading and endurance over extended cycling.
• Regulatory compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters — Bulk energy storage and smoothing in inverter DC link stages for motor drives and power conversion systems.
• AC Servomotor Regeneration — Handles high-frequency regenerative voltages and rapid charge–discharge events common in servo drives.
• Industrial Power Supplies — Filtering and ripple-handling in high-voltage power supplies used in factory automation and drive systems.

Unique Advantages

• High-voltage, smaller footprint — Offers high-voltage capability with a smaller size relative to larger series options, saving cabinet space in dense power assemblies.
• Long life under stress — 5000-hour load-life rating at 105 °C with rated ripple current provides predictable longevity in demanding thermal environments.
• High-frequency ripple handling — Significant ripple-current ratings at both 120 Hz and 10 kHz support effective filtering across a range of switching frequencies.
• Secure mechanical installation — Stud bolt mount and screw terminals simplify installation and ensure reliable electrical connections in vibration-prone industrial settings.
• RoHS compliance — Materials comply with RoHS requirements for regulatory and environmental compatibility.

Why Choose LNU2W123MTEJ?

LNU2W123MTEJ is positioned for engineers specifying robust, high-voltage electrolytic capacitance for inverter drives, regenerative motor systems, and industrial power supplies where elevated temperature endurance and high ripple handling are critical. Its combination of 12 mF capacitance, 450 V rating, and 5000-hour endurance at 105 °C delivers a reliable energy-storage solution for demanding applications.

This part is well suited for designs requiring secure stud-bolt mounting and screw-terminal connections, and for teams prioritizing long-term performance under heavy ripple and frequent charge–discharge cycles. RoHS compliance further supports deployment in regulated industrial environments.

Request a quote or submit an inquiry to receive pricing and availability information for LNU2W123MTEJ and to discuss suitability for your application.