LNY2G123MSEJ

The LNY2G123MSEJ from Nichicon is a screw-terminal aluminum electrolytic capacitor in the LNY series, offering high capacitance at a 400 V rating for demanding power applications. Designed for compact equipment layouts, it combines large energy storage with high ripple-handling and a robust 2000-hour life at 85°C.

Typical use cases include general-purpose high-voltage power systems where bulk capacitance, high ripple current capability and screw-terminal mounting are required. The part is supplied in a radial can with screw terminals and is RoHS compliant.

Key Features

• High Capacitance & Voltage — 12000 µF nominal capacitance with a 400 V rated voltage and ±20% tolerance, providing substantial bulk energy storage for high-voltage circuits.
• High Ripple Current Capability — 26 A low-frequency ripple current (120 Hz) and 36.4 A high-frequency ripple current (10 kHz) to support heavy ripple workloads and improve smoothing performance.
• Endurance at Elevated Temperature — Load life rated to 2000 hours at 85°C under rated ripple conditions, enabling reliable operation in thermally demanding environments.
• Screw Terminal Mounting — Radial can with screw terminals for secure electrical and mechanical connections in high-current power assemblies.
• Electrical Loss and Leakage — Specified tangent of loss angle (tan δ) of 0.25 (measurement at 120 Hz, 20°C) and a leakage current spec of 5000 µA, enabling predictable loss and leakage behavior for design calculations.
• Thermal and Low-Temperature Stability — Operating range from −40°C to +85°C with an impedance ratio Z(−40°C)/Z(+20°C) up to 12, supporting stable performance across wide ambient temperatures.
• Safety and Insulation — Insulation resistance greater than 100 MΩ at DC 500 V between terminal and bracket, and voltage proof of AC 2500 V for 1 minute between terminal and bracket as specified.
• Compliance & Packaging — RoHS compliant and shipped in cardboard packing; suitable for mass production deployment.

Typical Applications

• High-voltage power supplies — Bulk energy storage and smoothing in 400 V power rails where high capacitance and ripple handling are required.
• Industrial power electronics — Energy buffering and ripple suppression in equipment that benefits from screw-terminal mounting for secure high-current connections.
• Compact equipment designs — Suited for equipment down-sizing where large capacitance in a single radial can reduces PCB area and simplifies layout.

Unique Advantages

• Substantial energy storage in a single component — 12000 µF at 400 V reduces the need for multiple parallel capacitors, simplifying BOM and assembly.
• Engineered for high ripple environments — Specified 26 A (120 Hz) and 36.4 A (10 kHz) ripple currents support heavy-duty smoothing and extended runtime under ripple loading.
• Designed for elevated-temperature endurance — 2000-hour load life at 85°C provides a clear specification for thermal longevity planning.
• Robust mechanical connection — Screw terminal package delivers reliable high-current terminations for industrial assemblies and modular power units.
• Predictable electrical behavior — Defined tan δ and leakage current values assist in loss, thermal and standby current budgeting during design.
• Regulatory compliance and production readiness — RoHS compliant and available in cardboard packing for mass production workflows.

Why Choose LNY2G123MSEJ?

The LNY2G123MSEJ combines high-capacity 12 mF storage with a 400 V rating, high ripple-current capability and a screw-terminal package to address demanding power-electronics requirements. Its 2000-hour endurance at 85°C and defined leakage and tan δ parameters make it straightforward to specify for reliable, long-life designs.

This part is well suited to engineers and procurement teams developing industrial and high-voltage power systems that need large single-component capacitance, secure high-current terminations and predictable thermal and electrical characteristics, backed by Nichicon's LNY series specifications.

Request a quote or contact sales to discuss availability, lead times and how LNY2G123MSEJ can fit into your power system design and production plans.