LNU2H122MSEFBB

The LNU2H122MSEFBB is a screw-terminal aluminum electrolytic capacitor designed for high-voltage industrial power electronics. It provides 1.2 mF capacitance at a 500 V rated voltage in a compact can-style package with screw terminals, optimized for inverter and regenerative circuitry.

Engineered for robust thermal and electrical performance, the capacitor is specified for operation from –40°C to 105°C, a 5000-hour load life at 105°C under rated ripple, and high ripple-handling capability for demanding charge–discharge and high-frequency applications.

Key Features

• Package & Termination Screw-terminal radial can package for secure, high-current connections and simplified mounting in industrial power assemblies.
• High Voltage Rating Rated at 500 V DC (series rated up to DC 525 V) to support inverter and regenerative circuits requiring elevated DC bus voltages.
• Capacitance & Tolerance 1.2 mF (1200 µF) with ±20% tolerance (measured at 120 Hz, 20°C) for bulk energy storage and smoothing in power stages.
• Temperature & Lifetime Operating range –40°C to +105°C with a specified load life of 5000 hours at 105°C under rated ripple current.
• Ripple Current Capability 5.7 A at 120 Hz and 7.98 A at 10 kHz, enabling effective filtering and handling of high-frequency currents in inverter/regenerative systems.
• Leakage Current Specification After 5 minutes’ application of rated voltage, leakage current is not more than 3√CV (µA) or 5 mA, whichever is smaller (at 20°C).
• Electrical Robustness Insulation resistance >100 MΩ at DC 500 V between terminal and bracket, and voltage-proof performance at AC 2500 V for 1 minute between terminal and bracket.
• Compact Dimensions Physical size L: 11.5 × D: 5.1 cm with a sealed can design and screw terminals for secure installation in constrained power modules.

Typical Applications

• Industrial Power Supplies Bulk energy storage and DC bus smoothing for inverter power supplies where high voltage and long-term thermal reliability are required.
• Inverter & Motor Drive Systems Energy buffering and high-frequency regenerative voltage handling for AC servomotor drives and general inverter topologies.
• High-Frequency Charge–Discharge Circuits Designed to cope with rapid charge–discharge loading and maintain performance over extended cycling.

Unique Advantages

• High-voltage capability in a compact footprint: 500 V rating (series up to DC 525 V) combined with a smaller physical size supports higher-density power assemblies.
• Validated high-temperature endurance: 5000 hours at 105°C under rated ripple current provides predictable aging and lifecycle behavior for industrial applications.
• High ripple-handling across frequencies: Specified ripple current values at 120 Hz and 10 kHz show suitability for both mains-frequency filtering and high-frequency inverter switching environments.
• Strict leakage and insulation metrics: Leakage current limited to 3√CV µA or 5 mA and insulation resistance >100 MΩ support stable DC bus performance and safety margins in high-voltage systems.
• Proven endurance and charge–discharge resilience: Meets endurance criteria after extended high-temperature operation and after extensive charge–discharge cycling, maintaining capacitance and dissipation factor within defined limits.

Why Choose LNU2H122MSEFBB?

The LNU2H122MSEFBB is positioned for designers who need reliable, high-voltage energy storage in compact power modules. Its combination of 500 V rating, 1.2 mF capacitance, robust ripple capability, and a 5000-hour rated life at 105°C make it well suited to inverter, regenerative and industrial drive systems that require durable DC bus performance.

Engineers and procurement teams benefit from predictable electrical characteristics—defined leakage, insulation, voltage-proof, and high-frequency ripple ratings—helping simplify BOM decisions and ensure long-term field reliability in demanding industrial environments.

Request a quote or submit a procurement inquiry to receive pricing and availability for the LNU2H122MSEFBB.