LNY2W123MSEJ

The LNY2W123MSEJ from Nichicon is a high-capacitance aluminum electrolytic capacitor in a screw-terminal can package. Designed for general-purpose, high-voltage applications, it delivers 12,000 µF at a 450 V rating with a rated operating temperature range of –40 °C to +85 °C.

Engineered for compact equipment designs and robust power handling, this screw-terminal module combines high capacitance, defined ripple capability and a rated load life of 2000 hours at 85 °C to meet demanding system-level energy storage and smoothing requirements.

Key Features

• High Capacitance & Voltage: 12,000 µF nominal capacitance at a 450 V rated voltage for large energy storage in a single can.
• Screw Terminal Mounting: Radial can with screw terminals (M5 nominal bolt for φ90) for secure electrical and mechanical connections in power assemblies.
• Load Life & Reliability: Endurance rating of 2000 hours at 85 °C under DC bias plus rated ripple current; suitable for sustained high-temperature operation.
• Ripple Current Handling: 26 A at 120 Hz and 36.4 A at 10 kHz, providing defined ripple dissipation capability across common power frequencies.
• Leakage and Loss Characteristics: Leakage current listed as 5000 µA (5 mA) and tangent of loss angle (tan δ) of 0.25 (measurement basis per datasheet).
• Temperature and Low‑Temperature Stability: Rated operating range −40 °C to +85 °C with an impedance ratio Z(−40 °C)/Z(+20 °C) of up to 12 for 350–450 V types.
• Electrical Isolation: Insulation resistance greater than 100 MΩ at DC 500 V between terminal and bracket, and AC 2500 V dielectric proof per datasheet.
• Form Factor: φ90 × 190 mm can (dimension L: 19 × D: 9 cm) suitable for equipment downsizing where high capacitance per module is required.
• Regulatory: RoHS compliant.

Typical Applications

• General-purpose high-voltage systems: Provides bulk energy storage and smoothing for systems requiring 450 V-rated capacitance in a compact screw-terminal module.
• Equipment downsizing: High single-package capacitance helps reduce the number of parallel capacitors, supporting smaller power assemblies as noted in the product series information.
• High-ripple environments: Suitable where defined ripple currents (26 A at 120 Hz, 36.4 A at 10 kHz) must be handled reliably over extended periods at elevated temperature.

Unique Advantages

• High energy density in a single can: 12,000 µF at 450 V reduces part count and simplifies system-level layout compared to multiple smaller capacitors.
• Robust thermal endurance: 2000-hour life rating at 85 °C gives designers a clear reliability target for high-temperature applications.
• Clear ripple specifications: Explicit ripple current ratings at 120 Hz and 10 kHz enable accurate thermal and lifetime planning in power designs.
• Screw-terminal connectivity: Mechanically secure fastening and low-resistance connections for high-current power bus implementations.
• Defined leakage and loss metrics: Specified leakage current (5 mA) and tan δ (0.25) support predictable electrical behavior under rated conditions.
• Regulatory compliance: RoHS compliance for markets requiring restricted substance conformity.

Why Choose LNY2W123MSEJ?

The Nichicon LNY2W123MSEJ positions itself as a high-capacitance, high-voltage electrolytic solution for designers who need substantial bulk energy storage and smoothing in a screw-terminal can. With a 450 V rating, 12,000 µF capacitance, and a 2000-hour life at 85 °C, it is suited to systems that require clearly defined ripple handling, thermal endurance and mechanical robustness.

Manufactured by Nichicon and supplied in a radial can with screw terminals, this part is appropriate for engineers targeting compact power assemblies, equipment downsizing and predictable performance over extended high-temperature operation.

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