LNU2H392MTEJ

The LNU2H392MTEJ is a stud bolt‑mount, screw‑terminal aluminum electrolytic capacitor rated at 500 V DC with 3900 µF capacitance. Designed for high‑voltage, high‑frequency power applications, it delivers compact energy storage and robust ripple handling in industrial environments.

Typical use cases include inverter power supplies, regenerative circuits for servomotors and other high‑frequency charge/discharge applications where long life and secure terminal connections are required. The device is specified for operation from −40 °C to +105 °C and offers a 5000‑hour endurance at 105 °C.

Key Features

• High Voltage & Capacitance — 3.9 mF capacitance at a 500 V rated DC voltage for bulk energy storage in high‑voltage systems.
• High Temperature Endurance — Rated lifetime of 5000 hours at 105 °C when subjected to DC bias plus rated ripple current, supporting sustained operation in hot environments.
• Robust Ripple Handling — Low‑frequency ripple current of 12.4 A (120 Hz) and high‑frequency ripple current of 17.36 A (10 kHz) for demanding power conversion and regenerative loads.
• Leakage and Dissipation Characteristics — Specified leakage current of 4180 µA and tangent of loss angle (tan δ) of 0.2 measured at 20 °C, 120 Hz for predictable loss and self‑heating behavior.
• Secure Mechanical Package — Radial can with screw terminals and stud bolt mount (φ90 × 105 mm length) for reliable, low‑impedance connections in industrial assemblies.
• Wide Operating Temperature Range — Functional from −40 °C to +105 °C to cover typical industrial thermal profiles.
• RoHS Compliant — Meets RoHS directive requirements for restricted substances.

Typical Applications

• Industrial Inverter Power Supplies — Bulk and smoothing capacitance for inverter front‑end and DC link filtering in industrial power supplies.
• AC Servomotor Regenerative Circuits — Energy buffering and high‑frequency regenerative voltage handling for motor drive systems.
• High‑Speed Charge/Discharge Systems — Suitable for applications requiring rapid charge and discharge cycles and high ripple endurance.
• Power Conversion and Filtering — General purpose high‑voltage filtering in systems that require secure stud bolt connections and extended life at elevated temperatures.

Unique Advantages

• High‑Voltage Energy Density: 500 V rating combined with 3900 µF capacitance provides substantial DC link energy in a compact form factor.
• Engineered for High Ripple Loads: Specified low‑ and high‑frequency ripple currents (12.4 A @120 Hz; 17.36 A @10 kHz) reduce the need for parallel components in many designs.
• Long Thermal Life: 5000 hours endurance at 105 °C under rated conditions supports extended service intervals in harsh operating environments.
• Mechanical Reliability: Stud bolt mount and screw terminals deliver low‑resistance, vibration‑tolerant connections ideal for industrial assemblies.
• Predictable Electrical Losses: Tan δ = 0.2 (20 °C, 120 Hz) and specified leakage current provide clear parameters for thermal and loss budgeting.
• Regulatory Compliance: RoHS compliance simplifies integration into assemblies subject to restricted substance requirements.

Why Choose LNU2H392MTEJ?

The LNU2H392MTEJ positions itself as a purpose‑built solution for high‑voltage DC link and energy buffering needs in industrial power electronics. Its combination of 500 V rating, substantial capacitance, elevated ripple current capability and 5000‑hour life at 105 °C makes it suitable for inverter systems, regenerative motor drives and other demanding power conversion applications.

Engineers and procurement teams benefit from predictable electrical characteristics, durable stud bolt mounting and RoHS compliance, enabling reliable integration into long‑lifecycle industrial designs where performance at temperature and secure connections matter.

Request a quote or submit a technical inquiry to receive pricing, availability and ordering information for LNU2H392MTEJ. Our team can provide lead‑time details and assist with specification questions.