LNU2G392MTEH

The LNU2G392MTEH is an aluminum electrolytic capacitor in a screw-terminal can, designed for high-voltage power applications. This stud-bolt mount capacitor delivers 3.9 mF capacitance at a 400 V DC rating and is built for continuous operation from −40°C to +105°C.

Engineered for industrial power supplies and inverter circuitry, the LNU series targets high-frequency regenerative voltages and high-speed charge–discharge loading with a compact footprint and robust ripple-current capability.

Key Features

• High-voltage performance — Rated at 400 V DC for this part, with the series rated up to DC 525 V to support inverter and regenerative power stages.
• Capacitance and tolerance — 3.9 mF nominal capacitance with ±20% tolerance (measured at 120 Hz, 20°C).
• Wide temperature range — Operates from −40°C to +105°C for demanding industrial environments.
• Long load life — Load life of 5000 hours with DC bias plus rated ripple current at 105°C per the series endurance specification.
• High ripple-current capability — Rated ripple current of 14.3 A at 120 Hz and 20.02 A at 10 kHz, supporting high-frequency inverter and regenerative loads.
• Stud-bolt screw terminal package — Radial can with screw terminals and stud-bolt mount for secure electrical and mechanical connections in power assemblies.
• Leakage current specification — After 5 minutes at rated voltage and 20°C, leakage is not more than 3√CV (μA) or 5 mA, whichever is smaller, per datasheet limits.
• Compact footprint — Smaller sized than LNT series equivalents while maintaining high-voltage capability; part dimensions: L 8.5 cm × D 7.62 cm, height seated max 3.346 in.
• RoHS compliant — Conforms to RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial inverter power supplies — Bulk energy storage and smoothing for inverter front-ends where high-voltage, high-temperature endurance is required.
• AC servomotor regenerative circuits — Handles high-frequency regenerative voltage and rapid charge–discharge cycles in motor control systems.
• General inverter systems — Energy buffering and ripple attenuation for power conversion in industrial drives and power electronics.

Unique Advantages

• High-voltage, compact solution: 400 V rating (series up to 525 V) in a smaller package than comparable LNT series parts, enabling denser power module layouts.
• Designed for high-frequency operation: Elevated ripple-current ratings at both 120 Hz and 10 kHz support high-speed switching and regenerative loads.
• Robust thermal endurance: 5000-hour load life at 105°C under rated conditions provides predictable long-term performance in hot enclosures.
• Secure electrical connections: Screw-terminal, stud-bolt mounting simplifies integration into busbar and power assembly designs while delivering reliable mechanical retention.
• Measurable leakage limits: Leakage current defined by the datasheet formula (≤ 3√CV µA or 5 mA after 5 minutes at 20°C) aids in predictable system design and protection coordination.
• RoHS compliance: Conforms to applicable RoHS directives for regulated material content in industrial equipment.

Why Choose LNU2G392MTEH?

The LNU2G392MTEH combines high-voltage capability, elevated ripple-current handling, and long-term thermal endurance in a screw-terminal, stud-mount package suited to industrial inverter and regenerative power designs. Its compact form factor relative to other series options helps reduce enclosure space while maintaining performance.

This part is appropriate for engineers and procurement teams specifying bulk energy storage, smoothing, and regenerative buffering in industrial motor drives, inverters, and power-supply assemblies where reliable high-temperature operation and secure mounting are required.

If you would like a quote or additional procurement information for the LNU2G392MTEH, please request a quote or contact the sales team with your quantity and delivery requirements.