LNX2L392MSEJBB

The LNX2L392MSEJBB is a screw-terminal aluminum electrolytic capacitor designed for extra-high-voltage, high-ripple applications. With a rated capacitance of 3.9 mF (3900 µF) and a 550 V rating, it targets industrial power electronics—particularly industrial power supplies and inverter circuitry—where high ripple current handling and long operational life are required.

Engineered for reliability in demanding environments, this radial can with screw terminals combines high ripple capability, polarized aluminum electrolytic construction, and RoHS compliance for systems that require robust DC bus smoothing and energy buffering at elevated voltages.

Key Features

• Capacitance & Voltage: 3.9 mF (3900 µF) nominal capacitance at a 550 V rated voltage for extra-high-voltage energy storage.
• High ripple current capability: Rated ripple current of 12.5 A at 120 Hz and 17.5 A at 100 kHz to support heavy AC ripple and switching loads.
• Endurance & life at elevated temperature: Qualified for 5000 hours at +85°C under D.C. bias plus rated ripple current (applicable to 500 V and 550 V parts), with defined limits for capacitance change, tan δ, and leakage current after test.
• Temperature range & low-temp stability: Operating range −25°C to +85°C, with a maximum impedance ratio Z(−25°C)/Z(+20°C) of 8 for stable performance at low ambient temperatures.
• Leakage current specification: After 5 minutes at rated voltage, leakage current is limited to 3√(C·V) μA or 5 mA, whichever is smaller, providing predictable self-discharge behavior.
• Mechanical & mounting: Radial can with screw terminals for secure bolted connections; size dimensions L: 15 × D: 9 cm and maximum seated height 5.906 inch.
• Electrical tolerance & polarization: Capacitance tolerance ±20% and polarized construction typical of aluminum electrolytic technology.
• Compliance & safety options: RoHS compliant (2011/65/EU, (EU)2015/863). Flame-retardant electrolyte versions are available for specified types.

Typical Applications

• Industrial Power Supplies: Bulk DC-link and smoothing in high-voltage industrial power supplies where high ripple current capacity is required.
• Inverter Circuitry: Energy buffering and ripple handling for inverter DC buses and power conversion stages operating at extra-high voltages.
• Extra-High-Voltage Systems: General-purpose use in equipment and assemblies that require capacitors rated up to 550 V with defined endurance at elevated temperatures.

Unique Advantages

• Extra-high voltage rating: 550 V rating enables use in circuits that require higher DC bus voltages without series stacking.
• High ripple endurance: Specified ripple current ratings (12.5 A @120 Hz, 17.5 A @100 kHz) support robust operation under switching and high-frequency conditions.
• Defined high-temperature life: Endurance qualification at +85°C for 5000 hours under rated conditions provides predictable aging and maintenance planning for industrial systems.
• Secure, serviceable termination: Screw-terminal, radial-can package provides reliable bolted connections for high-current paths and easier field serviceability.
• Regulatory compliance and options: RoHS compliance and availability of flame-retardant electrolyte variants help meet environmental and safety considerations.
• Low-temperature performance: Controlled impedance increase (Z(−25°C)/Z(+20°C) ≤ 8) ensures usable behavior in colder ambient conditions.

Why Choose LNX2L392MSEJBB?

LNX2L392MSEJBB positions itself as a practical solution for engineers designing extra-high-voltage power electronics that demand high ripple handling and reliable long-term performance at elevated temperatures. Its combination of 3.9 mF capacitance, 550 V rating, and screw-terminal packaging makes it suitable for DC-link smoothing and energy storage in industrial power supplies and inverter stages.

This part offers measurable, specification-backed advantages—clear ripple current ratings, defined endurance at +85°C, low-temperature impedance limits, and RoHS compliance—making it appropriate for procurement and designs that require predictable electrical aging, secure mechanical connections, and environmental conformity.

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