LNR1E334MSEN

The LNR1E334MSEN is a screw-terminal aluminum electrolytic capacitor from Nichicon’s LNR series designed for high-capacitance, general-purpose power applications. This radial canister capacitor delivers 330000 µF at 25 V in a screw-terminal package intended for robust electrical and mechanical connections.

Engineered for demanding ripple-handling and long-term operation, the LNR1E334MSEN is specified for continuous operation up to 85°C with a 5000-hour endurance rating, making it suitable for industrial and power-electronics designs that require sustained bulk energy storage and smoothing.

Key Features

• High Capacitance: 330000 µF (330 mF) provides substantial bulk energy storage for filtering, smoothing and hold-up functions.
• Rated Voltage: 25 V rated voltage for low-voltage power rails and DC link applications where high capacitance at moderate voltage is required.
• Screw Terminal Mounting: Screw-terminal, radial can package simplifies secure electrical connections and mechanical fastening for heavy-current wiring.
• High Ripple Current Capability: Supports 24.8 A at 120 Hz and 28.52 A at 100 kHz, enabling effective handling of both low- and high-frequency ripple in power systems.
• Endurance at Elevated Temperature: Rated for 5000 hours at 85°C under DC bias plus rated ripple current; after the endurance test, capacitance is specified to remain within ±15% of the initial value.
• Operating Temperature Range: −40°C to +85°C to accommodate a wide range of industrial environments.
• Leakage and Dissipation: Specified leakage current up to 5000 µA and tan δ = 0.75 (measured at 20°C, 120 Hz), enabling predictable performance and design margining.
• Form Factor: Body dimensions φ76.2 × 120 mm length, supplied in cardboard packing and available in mass production quantities.
• RoHS Compliant: Conforms to RoHS requirements for use in regulated assemblies.

Typical Applications

• Power Supply Filtering: Bulk energy storage and smoothing on DC power rails where high capacitance and high ripple handling are required.
• Industrial Power Electronics: Energy buffering and ripple suppression in converters and motor drives that operate continuously at elevated temperatures.
• Backup and Hold-up Circuits: Short-term energy hold-up for systems that need reliable power during transient events or brief interruptions.

Unique Advantages

• Substantial Stored Energy: 330000 µF capacitance reduces the number of parallel devices required for large bulk storage, simplifying system layout.
• Robust Current Handling: High specified ripple currents at both low and high frequencies support demanding switching and rectification environments without overstressing the capacitor.
• Long-Term Stability: 5000-hour endurance at 85°C with defined limits on capacitance change and dissipation ensures predictable lifetime behavior under rated conditions.
• Secure Mechanical and Electrical Interface: Screw terminal design provides reliable, low-resistance connections for heavy-current wiring and repeatable assembly.
• Wide Operating Temperature Range: −40°C to +85°C supports deployment in varied industrial settings while maintaining performance specifications.

Why Choose LNR1E334MSEN?

LNR1E334MSEN is positioned for designs that need large bulk capacitance, high ripple capability and reliable long-term operation at elevated temperatures. Its screw-terminal form factor and high ripple current ratings make it a practical choice for engineers specifying bulk energy storage and smoothing in industrial power electronics, power supplies and backup circuits.

Choosing this Nichicon LNR-series part provides a clear specification set—capacitance, ripple current, endurance and operating temperature—allowing engineers to design with measurable performance and predictable lifecycle behavior backed by series-level datasheet specifications.

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