LGY1H123MELC45

The LGY1H123MELC45 is an aluminum electrolytic capacitor from Nichicon’s LGY series, featuring a snap-in terminal configuration and long-life assurance. It is designed for demanding industrial power applications where sustained ripple handling and reliable performance at elevated temperatures are required.

Targeted use cases include industrial power supplies and ballast circuits. The component’s defining value is its long-life specification—verified endurance under rated ripple current at 105°C—combined with polarized, snap-in packaging for secure mounting in power assemblies.

Key Features

• Capacitance & Voltage — Rated capacitance of 12 mF and a nominal voltage rating of 50 V for bulk energy storage and filtering in power rails.
• Snap-in Terminal Mounting — Snap-in (radial can) package provides a robust board-mount solution for vertical installation and strong mechanical retention.
• High-Temperature Long Life — Endurance specified as 5000 hours at 105°C with DC bias plus rated ripple current; capacitors meet defined post-test limits for capacitance, tan δ and leakage current as per LGY series endurance criteria.
• Ripple Current Capability — Rated ripple currents of 3.4 A at 120 Hz and 3.91 A at 50 kHz to support power-supply filtering under significant AC stress.
• Operating Range & Reliability — Operating temperature range from –40°C to +105°C and polarized construction for reliable bulk capacitance in power circuits.
• Tolerance & Polarization — Capacitance tolerance of –20% to +20% and polarized orientation; leakage and tan δ meet LGY series specifications after specified conditioning and testing.
• RoHS Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863), supporting regulatory requirements for restricted substances.
• Compact Can Dimensions — Physical footprint documented as L: 4.5 × D: 3.5 cm to assist mechanical integration and placement planning.

Typical Applications

• Industrial Power Supplies — Bulk filtering and smoothing where sustained ripple current and high-temperature endurance are required for long service life.
• Ballast Circuits — Energy storage and ripple handling in ballast and lighting power electronics, leveraging the LGY series’ long-life specification.
• General-Purpose Power Filtering — Use as a polarized bulk capacitor for voltage stabilization and decoupling in a variety of industrial electronic assemblies.

Unique Advantages

• Long-life assurance: Rated to withstand 5000 hours of DC bias plus rated ripple at 105°C, providing predictable end-of-life behavior for maintenance planning.
• High ripple capability: Specified ripple currents at both low (120 Hz) and high (50 kHz) frequencies support a range of switching and line-frequency power designs.
• Robust mounting: Snap-in terminal and radial can package deliver secure mechanical retention for vertical board installations in power assemblies.
• Wide operating temperature: –40°C to +105°C rating accommodates industrial temperature environments without sacrificing capacitance performance.
• Regulatory compliance: RoHS conformity reduces regulatory risk for assemblies destined for regions enforcing restricted substance rules.

Why Choose LGY1H123MELC45?

The LGY1H123MELC45 combines the LGY series’ long-life design with a snap-in radial package to meet the needs of engineers building robust industrial power systems and ballast equipment. Its 12 mF capacitance at 50 V, rated ripple currents, and validated 5000-hour endurance at 105°C deliver predictable performance under continuous thermal and electrical stress.

This capacitor is suited for designs where dependable bulk capacitance, proven high-temperature endurance, and secure board mounting are priorities. Specification-driven designers will value the measurable endurance and ripple ratings when evaluating long-term reliability and maintenance intervals.

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