LNU2H392MTEH

The LNU2H392MTEH is a screw-terminal aluminum electrolytic capacitor designed for high-voltage industrial power applications. It provides a 3.9 mF capacitance at a 500 V DC rating in a compact, screw-terminal (radial can) package with stud-bolt mounting.

Engineered for inverter circuitry and high-frequency regenerative systems, this part delivers high ripple-current capability, long life at elevated temperature, and robust charge–discharge endurance for demanding power-conversion environments.

Key Features

• High Voltage — Rated for 500 V DC, supporting industrial inverter and power-supply topologies that require elevated DC bus voltages.
• Capacitance — 3.9 mF nominal capacitance with ±20% tolerance (120 Hz, 20°C), suitable for bulk energy storage and smoothing in high-voltage circuits.
• High Temperature Endurance — Specified operating range of −40°C to +105°C with a load life of 5000 hours at 105°C under rated ripple current conditions.
• High Ripple Current — Rated ripple current of 12.4 A at 120 Hz and 17.36 A at 10 kHz to support both low- and high-frequency switching environments.
• Package & Mounting — Radial can with screw terminals and stud-bolt mount for secure mechanical and electrical connections in industrial assemblies.
• Charge–Discharge Endurance — Designed to meet specified characteristics after 50 million charge–discharge cycles, addressing high-speed charge–discharge loading scenarios.
• Leakage & Safety — Leakage current after 5 minutes at rated voltage is limited to 3√(C·V) μA or 5 mA, whichever is smaller; insulation resistance >100 MΩ at DC 500 V between terminal and bracket; voltage proof AC 2500 V for 1 minute between terminal and bracket.
• RoHS Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters — Bulk DC link and smoothing capacitor for inverter power stages where 400–525 V rated voltages are used.
• AC Servomotor Drives — Handles high-frequency regenerative voltage and rapid charge–discharge cycles encountered in motor-control systems.
• Power Supplies for Industrial Equipment — Energy storage and ripple filtering in high-voltage power supplies and converters.
• High-Frequency Switching Systems — Suitable where elevated ripple-current and high-frequency performance (up to 10 kHz spec) are required.

Unique Advantages

• High-voltage capability: 500 V DC rating enables use in higher-voltage industrial power designs without series stacking.
• Compact, screw-terminal form factor: Radial can with screw terminals and stud-bolt mounting simplifies secure installation and heavy-current connections.
• Designed for high ripple and frequency: Specified ripple-current ratings at both 120 Hz and 10 kHz support a wide range of switching frequencies and regenerative loads.
• Long high-temperature life: 5000 hours at 105°C under rated ripple current provides predictable lifetime performance in hot operating environments.
• Robust charge–discharge endurance: Meets defined characteristics after extensive charge–discharge cycling, addressing applications with rapid energy transfers.
• Measured electrical safety: Leakage, insulation resistance, and voltage-withstand specifications provide verifiable safety margins for industrial installations.

Why Choose LNU2H392MTEH?

The LNU2H392MTEH is positioned for engineers specifying reliable, high-voltage bulk capacitance in industrial power-conversion designs. Its 3.9 mF / 500 V rating, screw-terminal package, and high ripple-current capability make it suitable for inverter DC links, regenerative motor drives, and high-frequency switching systems that require durable performance at elevated temperatures.

With a 5000-hour life at 105°C, verified electrical safety parameters, and charge–discharge endurance, this capacitor offers a practical combination of voltage handling, energy storage, and mechanical robustness for demanding industrial applications.

Request a quote or contact sales to discuss availability, pricing, and how LNU2H392MTEH can fit into your power-design requirements.