LNU2W682MTEH

The LNU2W682MTEH is an aluminum electrolytic capacitor in a screw-terminal, radial can package designed for industrial power electronics. It provides 6.8 mF (6800 µF) capacitance at a 450 V rating and is specified for operation from −40°C to +105°C.

Designed for inverter circuitry and high-frequency regenerative voltage applications such as AC servomotors and general inverters, this part offers high-voltage capability (rated voltage range up to DC 525 V), extended load life, and high ripple-current handling for demanding charge–discharge and regenerative environments. The device is RoHS compliant.

Key Features

• Capacitance & Voltage — 6.8 mF (6800 µF) nominal capacitance with a rated voltage of 450 V; capacitance tolerance ±20% (120 Hz, 20°C).
• High-Temperature Operation — Rated for continuous operation from −40°C to +105°C, with a load life of 5000 hours at 105°C under rated ripple current.
• Screw-Terminal / Stud Bolt Mount — Radial can package with screw terminals and stud bolt mounting for secure electrical and mechanical connections in power assemblies.
• High Ripple Current Capability — Ripple current ratings of 23.4 A at 120 Hz and 32.76 A at 10 kHz, supporting high-frequency and high-current applications.
• Charge–Discharge Endurance — Demonstrated endurance for charge–discharge behavior (50 million cycles at 3 Hz) with specified limits on capacitance change, tan δ, and leakage current.
• Electrical Robustness — Insulation resistance more than 100 MΩ at DC 500 V between terminal and bracket and voltage proof of AC 2500 V for 1 minute between terminal and bracket.
• Compact High-Voltage Design — High-voltage design with smaller footprint relative to other high-voltage series, suitable for space-conscious power modules (physical size: L 17 × D 7.62 cm; max seated height 6.693 inch).
• Regulatory Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters — Bulk energy storage and filtering for inverter power stages where 450 V operation and high ripple capability are required.
• AC Servomotor Regeneration — Handling high-frequency regenerative voltages and fast charge–discharge cycles common in servo drive systems.
• Industrial Power Supplies — Smoothing and decoupling in high-voltage industrial supplies, supporting robust insulation and long load life at elevated temperature.
• High-Frequency Power Modules — Use in power conversion modules that require high ripple-current handling at both low and high frequencies (120 Hz and 10 kHz ratings provided).

Unique Advantages

• High-Voltage Capability: Rated at 450 V with a series range up to DC 525 V, enabling use in higher-voltage power systems without series stacking.
• Long High-Temperature Life: 5000-hour load life specification at 105°C under rated ripple current supports reliable operation in hot industrial environments.
• High Ripple-Current Performance: 23.4 A (120 Hz) and 32.76 A (10 kHz) ratings reduce overheating risk and improve lifecycle in high-current switching applications.
• Robust Charge–Discharge Endurance: Proven to withstand 50 million charge–discharge cycles (3 Hz), maintaining capacitance, tan δ, and leakage within specified limits.
• Insulation and Voltage Proof Testing: Insulation resistance >100 MΩ at DC 500 V and AC 2500 V/1 min voltage proof ensure electrical integrity between terminal and bracket.
• RoHS Compliant: Meets current RoHS requirements for reduced hazardous substances in industrial electronic assemblies.

Why Choose LNU2W682MTEH?

LNU2W682MTEH targets designers of industrial power electronics who need a high-voltage aluminum electrolytic capacitor with proven thermal endurance, high ripple capability, and robust charge–discharge performance. Its screw-terminal, stud-mount form factor and insulation/voltage-proof characteristics make it suitable for demanding inverter and regenerative applications.

With a combination of 450 V rating, extended 105°C life, and documented endurance and electrical robustness, this capacitor provides a reliable energy-storage and filtering solution for industrial inverter, servo drive, and high-frequency power modules where long-term stability under stress is required.

Request a quote or submit an inquiry to receive pricing and availability for LNU2W682MTEH and to discuss suitability for your power-electronics design needs.