LQR2W392MSEHBN

The LQR2W392MSEHBN is a Nichicon screw-terminal aluminum electrolytic capacitor offering 3900 µF capacitance at a 450 V rating. It is a radial can with screw terminals designed for high-voltage bulk energy storage in power electronics.

Optimized for power-conversion environments, this capacitor targets applications such as AC servo and inverter regenerative circuits, equipment exposed to fluctuating voltage, and rectifier/voltage-doubler circuits where high ripple handling and long endurance are required.

Key Features

• High Voltage and Capacitance — 3.9 mF capacitance rated at 450 V provides substantial energy storage for high-voltage power systems.
• Ripple Current Handling — Supports 14.1 A at 120 Hz (low frequency) and 19.74 A at 100 kHz (high frequency), enabling robust ripple performance across a wide frequency range.
• Loss Characteristics — Specified tangent of loss angle (tan δ) of 0.15 measured at 20°C and 120 Hz for predictable dissipation behavior.
• Temperature and Endurance — Rated for operation from −25°C to +85°C with an endurance specification of 5000 hours at 85°C, supporting sustained high-temperature operation.
• Charge–Discharge Durability — Designed to meet endurance requirements after 20 million charge–discharge cycles (ΔV = rated voltage × 0.3, 3 Hz) at room temperature.
• Screw Terminal Package — Radial can with screw terminals and M5 bolt accommodation (per series drawings), providing secure high-current connections for industrial assemblies.
• Manufacturing-Friendly Packing — Supplied in cardboard packing suitable for mass-production handling and automated assembly environments.

Typical Applications

• AC Servo & Motor Drives — Energy buffering and regenerative voltage handling in servo and motor control systems.
• Inverters and Power Converters — Bulk DC-link capacitance for general-purpose inverters and power conversion equipment operating under fluctuating voltages.
• Rectifier / Voltage Doubler Circuits — Stable high-voltage capacitance for rectifier stages and voltage-doubler topologies.
• Industrial Power Electronics — High ripple and endurance characteristics suitable for heavy-duty industrial power systems.

Unique Advantages

• High-voltage energy storage: 450 V rating combined with 3900 µF capacitance supplies significant stored energy for DC-link and smoothing applications.
• Wide ripple bandwidth: Separate low- and high-frequency ripple current ratings (14.1 A at 120 Hz and 19.74 A at 100 kHz) accommodate a broad spectrum of switching and regenerative conditions.
• Designed for long duty life: 5000 h endurance at 85°C and qualification for 20 million charge–discharge cycles provide predictable aging and reliability in continuous-use systems.
• Robust mechanical connection: Screw-terminal radial can package enables secure, low-resistance connections for high-current industrial assemblies.
• Operational temperature range: −25°C to +85°C supports deployment in environments with moderate thermal variation while maintaining defined electrical characteristics.
• Production-friendly supply: Cardboard packing is provided to facilitate volume handling and integration into production lines.

Why Choose LQR2W392MSEHBN?

The LQR2W392MSEHBN combines high-voltage capacitance, substantial ripple-current capability, and long endurance in a screw-terminal aluminum electrolytic package from Nichicon. It is positioned for designers of inverters, servo drives, and industrial power systems who need reliable bulk energy storage and durable charge–discharge performance.

With defined electrical parameters (3900 µF, 450 V, tan δ = 0.15 at 20°C/120 Hz), wide operating temperature range, and manufacturing-friendly packing, this part offers a practical balance of performance and service life for sustained power-electronics applications.

Request a quote or submit an inquiry for pricing and availability of the LQR2W392MSEHBN to evaluate fit for your design and production needs.