LNR1E334MSEB

The LNR1E334MSEB is a screw-terminal aluminum electrolytic capacitor from Nichicon's LNR series. It provides very high capacitance (330,000 µF) in a robust radial can with screw terminals, polarized construction and is intended for general-purpose power applications.

Designed for demanding ripple environments, this capacitor combines high ripple-current capability with long endurance (5000 hours at 85°C), making it suitable where bulk energy storage and repeated ripple handling are required within a −40°C to +85°C operating temperature range.

Key Features

• High Capacitance: 330,000 µF (330 mF) nominal capacitance delivers substantial bulk energy storage for power systems.
• Rated Voltage: 25 V rated voltage suitable for low-voltage DC bus applications that require large capacitance.
• Screw Terminal Mounting: Radial can with screw terminals and M5 bolt nominal terminal hardware for secure, low-resistance connections and easy installation.
• High Ripple-Current Capability: Low-frequency ripple current 24.8 A (120 Hz) and high-frequency ripple current 28.52 A (100 kHz) to withstand significant AC ripple stress.
• Endurance and Stability: Specified for 5000 hours at 85°C with defined limits: capacitance change within ±15%, tan δ ≤175% of initial limit, and leakage current maintained at or below initial specified value after endurance test.
• Leakage and Dissipation: Leakage current specified at 5000 µA and tangent of loss angle (tan δ) 0.75 (measured at 20°C, 120 Hz), enabling predictable dissipation behavior under rated conditions.
• Operating Range and Compliance: Rated for −40°C to +85°C operation and RoHS compliant; packaged in cardboard for bulk handling.
• Physical Size: Large-format can: diameter φ76.2 mm × length 120 mm (L: 12.0 cm × D: 7.62 cm) for applications that require high capacitance in a screw-terminal package.
• Tolerance and Polarity: Capacitance tolerance −20% to +20%; polarized capacitor suited for DC power circuits.

Typical Applications

• General-purpose power supplies: Bulk filtering and energy buffering where high capacitance and high ripple-current capability are required.
• Power conversion systems: DC bus smoothing and ripple management that benefit from 330,000 µF of capacitance and the specified 24.8 A / 28.52 A ripple ratings.
• Industrial power equipment: Systems requiring robust screw-terminal connections and long endurance at elevated temperature (5000 h at 85°C).

Unique Advantages

• Massive bulk capacitance: 330,000 µF provides substantial energy storage in a single component, reducing the number of parallel devices required.
• High ripple handling: Specified ripple currents at both low and high frequencies enable use in circuits with significant AC content on the DC rail.
• Long-term endurance: 5000-hour endurance at 85°C with defined post-test limits for capacitance, tan δ and leakage current supports predictable lifecycle behavior.
• Secure screw-terminal interface: M5-compatible screw terminals and robust radial can package simplify high-current connections and mechanical mounting.
• Clear performance metrics: Measured tan δ (0.75 at 20°C, 120 Hz) and specified leakage current provide engineers with verifiable parameters for thermal and loss calculations.
• RoHS compliant: Meets RoHS requirements for lead-free materials handling and regulatory conformity.

Why Choose LNR1E334MSEB?

The LNR1E334MSEB is positioned for designs that require very large-capacitance bulk storage combined with high ripple-current endurance and a durable screw-terminal interface. Its combination of 330,000 µF capacitance, 25 V rating, and defined endurance performance (5000 h at 85°C) makes it suitable for power supply smoothing and DC bus applications where predictable long-term behavior matters.

This capacitor is ideal for engineers and procurement teams specifying components for industrial and general-purpose power systems that need high stored charge, reliable ripple handling, and simple, secure connections enabled by screw terminals. RoHS compliance and series-level datasheet performance parameters make it straightforward to evaluate for production use.

Request a quote or contact sales to discuss availability, lead times, and pricing for LNR1E334MSEB.