LGN2G181MELA30

The LGN2G181MELA30 is an aluminum electrolytic capacitor in a snap‑in, radial can package designed for general‑purpose board‑level power applications. It provides 180 µF capacitance at a 400 V rating with polarized terminals and is optimized for sustained operation up to 105°C.

Key value propositions include snap‑in mounting for secure PCB installation, a compact case (one rank smaller than LGU), and endurance to extended ripple current exposure at elevated temperature, making it suitable where reliable high‑voltage bulk capacitance is required.

Key Features

• Electrical Characteristics — 180 µF nominal capacitance at 400 V DC with tolerance ±20% (measured at 120 Hz, 20°C).
• High‑Temperature Endurance — Rated for continuous operation up to 105°C and specified to withstand 3000 hours of rated ripple current at 105°C.
• Ripple Performance — Rated ripple current of 950 mA at 120 Hz and 1.359 A at 100 kHz, enabling sustained filtering under AC ripple conditions.
• Low‑Temperature Stability — For 350–600 V range (applicable to the 400 V rating) impedance ratio Z(–25°C)/Z(+20°C) specified as up to 8, supporting performance across the operating temperature range.
• Loss and Leakage — tan δ maximum 0.15 for 160–420 V measured at 120 Hz, 20°C; leakage current specified per datasheet (I≤3/√(μA) after 5 minutes application of rated voltage at 20°C).
• Package & Mounting — Snap‑in radial can package with compact dimensions (L: 3.0 cm × D: 2.5 cm) and a seated height specification of 1.181 inch for board layout planning.
• Reliability & Shelf Life — Endurance criteria: after 3000 hours at 105°C (DC bias plus rated ripple), capacitance change within ±20%, tan δ ≤200% of initial specified value, leakage current ≤ initial specified value; shelf‑life treatment also specified in the datasheet.
• Regulatory — Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General Purpose Power Circuits — Provides bulk capacitance and smoothing for DC bus and power supply stages where polarized electrolytic capacitance is required.
• Board‑Level Filtering — Snap‑in terminal type and radial can package enable secure PCB mounting for power conversion and filtering modules.
• High‑Temperature Environments — Rated operation to 105°C with specified 3000‑hour ripple endurance supports applications exposed to elevated operating temperatures.

Unique Advantages

• Compact footprint — One rank smaller case than LGU, enabling tighter board layouts without sacrificing capacitance and voltage rating.
• Elevated temperature endurance — Specified 3000 hours at 105°C under rated ripple current, providing predictable performance in high‑temperature duty cycles.
• Measured ripple capability — Explicit ripple current ratings at 120 Hz and 100 kHz deliver quantifiable parameters for thermal and reliability calculations.
• Designed for PCB mounting — Snap‑in radial can construction provides mechanical stability for board assemblies subject to vibration or handling.
• Standards‑oriented specifications — Performance metrics (tan δ, impedance ratio, leakage current, endurance and shelf life) are documented in the series datasheet for design verification.
• RoHS compliant — Meets RoHS directive requirements for restricted substances.

Why Choose LGN2G181MELA30?

LGN2G181MELA30 is positioned for engineers who need a polarized, high‑voltage electrolytic capacitor with documented high‑temperature endurance and measurable ripple performance. Its 400 V rating, 180 µF capacitance and snap‑in package combine to deliver reliable bulk energy storage and smoothing in compact board layouts.

The specification set — including endurance at 105°C, defined ripple currents at multiple frequencies, and datasheet‑defined limits for capacitance change, tan δ and leakage current — supports predictable integration into power systems, controls and general‑purpose power electronics where long‑term robustness and compliance are required.

To request a quote or submit a procurement inquiry for LGN2G181MELA30, please provide your quantity and lead‑time requirements and a representative will respond with pricing and availability information.