LGY1E183MELA50

The LGY1E183MELA50 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGY Long Life Assurance series. It delivers 18,000 µF capacitance at a 25 V rating and is designed for high‑reliability industrial power environments where sustained ripple handling and thermal endurance are required.

Engineered for industrial power supplies and ballast applications, the LGY1E183MELA50 combines high bulk capacitance, snap‑in mounting robustness, and long life performance up to 105°C to support dependable power filtering and energy storage in demanding systems.

Key Features

• High Capacitance — 18,000 µF (18 mF) bulk capacitance suitable for bulk energy storage and smoothing in power supply rails.
• Rated Voltage — 25 V DC rating for mid‑voltage power applications.
• Long Life Assurance — Endurance specified as 5000 hours at 105°C with DC bias plus rated ripple current; capacitance change within ±25% after the endurance test.
• Wide Operating Temperature Range — −40°C to +105°C for extended environmental tolerance.
• Ripple Current Capability — Specified ripple current of 3.1 A at 120 Hz and 3.565 A at 50 kHz; frequency coefficients increase rated ripple above 120 Hz (e.g., 1.15 at 50 kHz or more).
• Snap‑In Mounting — Radial, can‑type snap‑in package for secure PCB installation in high‑vibration or high‑current layouts.
• Electrical Characteristics and Reliability — Capacitance tolerance ±20%; leakage current guaranteed by I ≤ 3√CV (µA) after 5 minutes at 20°C; tan δ limits defined for 25 V (max 0.40).
• Regulatory Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).
• Physical Dimensions — Body dimensions approximately L: 5 × D: 2.5 cm with seated height maximum specified at 1.969 inch for board planning.

Typical Applications

• Industrial Power Supplies — Bulk filtering and energy storage for regulated rails where long thermal endurance and sustained ripple handling are required.
• Ballast Applications — Designed specifically as suitable for ballast use, providing stable capacitance and ripple performance under continuous operation.
• General Purpose Power Filtering — Use in industrial and commercial equipment for decoupling, smoothing, and transient energy buffering.

Unique Advantages

• Long‑life reliability: Defined 5000‑hour endurance at 105°C under rated ripple ensures predictable performance over extended operating intervals.
• High bulk capacitance in a snap‑in package: 18,000 µF in a radial snap‑in can delivers substantial energy storage with a PCB‑friendly mounting style for robust mechanical retention.
• Measured ripple performance: Explicit ripple current ratings at 120 Hz and 50 kHz and frequency coefficients allow designers to size capacitors against actual ripple spectra.
• Wide operating temperature span: −40°C to +105°C supports deployment across varied industrial environments without derating the operational envelope.
• Clear reliability metrics: Endurance and shelf‑life criteria (capacitance change, tan δ and leakage limits) are specified, enabling straightforward qualification in system testing.
• Regulatory readiness: RoHS compliance simplifies environmental compliance for products destined for regulated markets.

Why Choose LGY1E183MELA50?

The LGY1E183MELA50 is positioned for designs that require substantial bulk capacitance with proven thermal endurance and defined ripple capability. Its specification set—18,000 µF at 25 V, snap‑in mounting, 5000‑hour lifetime at 105°C, and documented ripple/current behavior—makes it suitable for engineers building reliable industrial power supplies, ballast circuits, and general purpose power filtering stages.

Choose this Nichicon LGY series part when you need verifiable endurance data, clear electrical limits, and a rugged snap‑in form factor that simplifies PCB mounting and mechanical retention while meeting RoHS requirements.

Request a quote or submit an RFQ for pricing and availability to evaluate LGY1E183MELA50 for your next design.