LNU2G392MSEHBB

The LNU2G392MSEHBB is a screw‑terminal aluminum electrolytic capacitor rated at 400 V and 3.9 mF (3900 µF) with ±20% tolerance. Designed for high‑voltage industrial power applications, this radial can capacitor combines high ripple handling and long load life for inverter and regenerative power circuitry.

Its screw terminal package and robust thermal rating make it suitable for power supplies, servo drives and other systems requiring high DC voltage smoothing, charge/discharge cycling and reliable long‑term performance up to 105°C.

Key Features

• Rated capacitance and voltage: 3.9 mF (3900 µF) at 400 V DC with ±20% tolerance (120 Hz, 20°C).
• High operating temperature: Specified for −40°C to 105°C operation with a rated load life of 5000 hours at 105°C.
• Ripple current capability: 14.3 A at 120 Hz and 20.02 A at 10 kHz, supporting both low‑ and high‑frequency ripple environments.
• Low loss characteristic: tan δ = 0.2 (specified), enabling stable performance under AC ripple conditions.
• Screw terminal mounting: Radial can package with screw terminals for secure, low‑impedance connections in power assemblies.
• Leakage and insulation: Leakage current after 5 minutes is ≤ 3√(C·V) µA or 5 mA (whichever is smaller); insulation resistance >100 MΩ at DC 500 V between terminal and bracket.
• Electrical endurance and reliability: Designed for 5000 hours of D.C. bias plus rated ripple current at 105°C; meets defined capacitance, tan δ and leakage limits after endurance testing.
• RoHS compliant: Conforms to RoHS directives (2011/65/EU, (EU)2015/863).
• Package size: Can dimensions φ76.2 × 85 mm (length 85 mm, diameter 76.2 mm) in cardboard packing for mass production handling.

Typical Applications

• Industrial inverters: Bulk smoothing and energy buffering in inverter power supplies where high DC voltage and ripple endurance are required.
• AC servomotor drives: Handling high‑frequency regenerative voltage and rapid charge/discharge cycles in motor drive systems.
• Power supply filtering: DC link and smoothing capacitor in high‑voltage power rails for industrial power electronics.
• Regenerative energy circuits: Energy absorption and smoothing in high‑frequency regenerative or braking circuits.

Unique Advantages

• High‑voltage capability: 400 V rating supports demanding DC link and inverter applications without series stacking.
• Long thermal life: 5000 hours at 105°C provides predictable service life under elevated operating temperatures.
• Robust ripple handling: Specified ripple currents at both 120 Hz and 10 kHz give designers clear performance margins across frequency ranges.
• Secure screw‑terminal connections: Screw terminals enable low‑resistance, vibration‑resistant terminations for industrial assemblies.
• Measurable leakage and insulation specs: Defined leakage current limits and >100 MΩ insulation resistance at DC 500 V support reliability verification and safety margins.
• Regulatory compliance: RoHS compliance simplifies environmental and supply‑chain considerations.

Why Choose LNU2G392MSEHBB?

The LNU2G392MSEHBB positions itself as a practical high‑voltage smoothing and energy‑buffer capacitor for industrial power electronics. With a 400 V rating, substantial capacitance, defined ripple current ratings at multiple frequencies and a 5000‑hour life at 105°C, it delivers verifiable performance for inverter, servo drive and regenerative applications.

Its screw‑terminal radial can construction, clear electrical endurance specifications and RoHS compliance make it suitable for engineers and procurement teams specifying reliable bulk capacitance in rugged power assemblies where long‑term thermal and ripple performance matter.

If you would like pricing, lead‑time information or a formal quote for LNU2G392MSEHBB, request a quote or contact our sales team to submit your requirements.