LNX2H122MSEG

The LNX2H122MSEG from Nichicon is a screw-terminal aluminum electrolytic capacitor rated 1200 µF at 500 V, designed for industrial power applications. Its screw-terminal can-style package and polarized construction make it suitable for high-voltage power conversion where secure, low-inductance connections and high ripple handling are required.

This part targets industrial power supplies and inverter circuitry, offering high ripple current capability, extra-high voltage rating, and extended operational life characteristics under rated ripple conditions at elevated temperature.

Key Features

• Electrical rating — 1.2 mF (1200 µF) capacitance with a 500 V rated voltage and ±20% tolerance at 120 Hz, 20 °C.
• High ripple capability — Rated ripple current of 4.8 A at 120 Hz and 6.72 A at 100 kHz, suitable for demanding power-conversion loads.
• Endurance and life — Series-level endurance is defined up to 20,000 hours at +85 °C under rated ripple current; for parts rated 500 V (this model) endurance is specified as 5,000 hours at +85 °C when subjected to DC bias plus rated ripple current.
• Wide operating temperature — Specified operating range from −25 °C to +85 °C.
• Robust screw-terminal package — Radial can with screw terminals for secure mechanical and electrical connections in high-current and high-voltage assemblies; nominal dimensions L: 9 × D: 6.35 cm and maximum seated height 3.543 inch.
• Leakage and loss characteristics — Leakage current after 5 minutes at rated voltage is limited to 3√CV (µA) or 5 mA, whichever is smaller (measured at 20 °C); tan δ limits and low-temperature impedance ratio Z(−25 °C)/Z(+20 °C) = 8 are defined in the datasheet.
• Safety and compliance — Flame-retardant electrolyte type available; RoHS compliant.

Typical Applications

• Industrial power supplies / inverter drives — Provides bulk energy storage and smoothing for inverter circuitry and power-conversion stages that require high-voltage, high-ripple components.
• High-voltage DC link and smoothing — Suited for DC-link filtering and energy buffering in high-voltage power electronics where a 500 V rating is required.
• Power conversion modules — Fits into converters and choppers that demand reliable screw-terminal connections and sustained ripple handling at elevated temperatures.

Unique Advantages

• High-voltage capability: 500 V rating enables use in extra-high voltage applications without stacking multiple lower-voltage capacitors.
• Strong ripple handling: Specified ripple currents (4.8 A at 120 Hz, 6.72 A at 100 kHz) support demanding switching and inverter loads to reduce thermal stress on the capacitor.
• Screw-terminal robustness: Mechanical screw terminals provide secure connections for high-current paths and simplify assembly and serviceability in industrial equipment.
• Defined endurance at elevated temperature: Endurance specifications (series: up to 20,000 hours at +85 °C; 500 V parts: 5,000 hours at +85 °C under DC bias plus rated ripple) allow engineers to plan lifetime and thermal management precisely.
• Measured leakage and stability limits: Clear leakage-current and impedance specifications enable predictable behavior during design verification and qualification testing.
• Regulatory compliance: RoHS compliance and availability of flame-retardant electrolyte types support regulatory and safety considerations for industrial deployments.

Why Choose LNX2H122MSEG?

The LNX2H122MSEG balances high-voltage capability, substantial ripple-current handling, and a screw-terminal mechanical interface tailored for industrial power electronics. Its datasheet-defined endurance and leakage limits let designers quantify lifetime and performance under DC bias and ripple conditions at elevated temperature.

This capacitor is suited to engineers designing inverter circuits, DC-link filters, and other high-voltage power-conversion systems that require reliable, serviceable connections and predictable long-term behavior. Choosing Nichicon’s LNX2H122MSEG supports robust, specification-driven designs where high ripple and extra-high voltage performance are required.

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