LGY1E183MELB40

The LGY1E183MELB40 is a snap-in terminal aluminum electrolytic capacitor from Nichicon’s LGY series designed for long-life, high-reliability power applications. It provides high bulk capacitance in a compact radial can with snap-in mounting for robust board installation.

Targeted use cases include industrial power supplies and ballast systems where sustained ripple handling and endurance at elevated temperatures are required. Its core value is dependable performance under continuous ripple stress—backed by a 5000-hour endurance rating at 105°C and substantial ripple-current capability.

Key Features

• High Capacitance & Rated Voltage — 18 mF (18,000 µF) nominal capacitance at a rated voltage of 25 V for large charge-storage and smoothing applications.
• Snap-in Terminal Package — Radial can with snap-in mounting for secure mechanical retention and easy PCB installation in power assemblies.
• Long-Life Endurance — Qualified for 5000 hours of operation at 105°C under rated ripple conditions, supporting sustained high-temperature use.
• Ripple Current Performance — Low-frequency ripple current 3.10 A (120 Hz) and high-frequency ripple current 3.565 A (50 kHz) to handle significant AC stress in power circuits.
• Operating Temperature Range — Rated for –40°C to +105°C to cover a wide range of industrial operating environments.
• Leakage and Tolerance — Specified leakage current 2010 µA and capacitance tolerance of ±20% for predictable electrical behavior.
• Dimensions & Packaging — Can size φ30 × 40 mm (L: 4 × D: 3 cm) with tray packing for volume production and handling.
• Environmental Compliance — RoHS compliant.

Typical Applications

• Industrial Power Supplies — Bulk smoothing and energy storage where continuous ripple handling and long-term stability at elevated temperature are required.
• Ballast Systems — Designed for ballast applications cited in the product series information, providing stable capacitance under sustained ripple stress.
• General-Purpose Power Equipment — Suitable for general-purpose power-filtering roles in industrial and commercial power electronics.

Unique Advantages

• Large Bulk Energy Storage: 18,000 µF capacitance supplies substantial charge reservoir for smoothing and hold-up in power circuits.
• Designed for Continuous High-Temperature Operation: 5000-hour endurance at 105°C provides predictable lifetime in demanding thermal environments.
• Robust Ripple Handling: Specified ripple currents at both low and high frequencies reduce design margin uncertainty for power-filtering tasks.
• Secure Snap-In Mounting: Snap-in terminal construction simplifies assembly and ensures reliable mechanical retention on populated boards.
• RoHS Compliant: Environmentally compliant for regulated markets and production requirements.

Why Choose LGY1E183MELB40?

The LGY1E183MELB40 is positioned for designers who need a high-capacitance, long-life electrolytic solution for industrial and ballast power applications. Its combination of 18 mF capacitance, 25 V rating, and specified ripple-current capability addresses common bulk storage and smoothing requirements while the 5000-hour rating at 105°C underlines long-term reliability.

This part is suitable for engineers specifying durable, high-capacitance components for production designs that demand predictable electrical performance and environmental compliance. Backed by Nichicon’s LGY series characteristics, it supports robust power-electronics assemblies over extended operating periods.

Request a quote or submit an RFQ to receive pricing, availability, and lead-time information for the LGY1E183MELB40.