LGU2F181MELZ

The LGU2F181MELZ is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LGU series, specified for polarized, general‑purpose applications. It offers a 180 µF capacitance at a 315 V rated voltage in a radial can, snap‑in package.

Designed for high‑temperature endurance, this part withstands 3000 hours of rated ripple current at 105°C and is RoHS compliant. Key electrical and mechanical characteristics include specified ripple current at both low and high frequencies, a wide operating temperature range, and a compact cylindrical footprint.

Key Features

• Rated Capacitance and Voltage — 180 µF nominal capacitance with a 315 V rated DC voltage, ±20% tolerance at 120 Hz, 20°C.
• High‑Temperature Endurance — Endurance specified as 3000 hours at 105°C with application of rated ripple current and DC bias.
• Ripple Current Capability — Rated ripple current of 920 mA at 120 Hz and 1.316 A at 100 kHz, supporting both low‑ and high‑frequency applications.
• Operating Temperature — Specified for operation from −25°C to +105°C.
• Snap‑In, Radial Can Package — Snap‑in terminal radial can (snap‑in mounting) for secure board attachment and through‑hole assembly.
• Polarized Aluminum Electrolytic — Polarized construction suitable where a polarized bulk capacitor is required.
• RoHS Compliance — Compliant with RoHS directive (2011/65/EU, (EU)2015/863).
• Compact Physical Size — Body dimensions L: 3.5 × D: 2.2 cm with a max seated height of 1.378 inch, suitable for constrained layouts.

Typical Applications

• General Purpose Electronics — Used as a polarized bulk capacitor in general‑purpose electronic equipment requiring a 315 V, 180 µF snap‑in electrolytic.
• Power Filtering and Smoothing — Suited for DC link, smoothing and filtering roles where rated ripple current performance (920 mA at 120 Hz; 1.316 A at 100 kHz) and 105°C endurance are needed.
• Industrial and Commercial Power Equipment — Appropriate for power conversion and conditioning circuits in applications that require a high‑voltage polarized electrolytic with snap‑in mounting and prolonged high‑temperature stability.

Unique Advantages

• Long High‑Temperature Life — 3000 hours endurance at 105°C provides predictable performance over extended elevated‑temperature operation.
• Dual‑Frequency Ripple Ratings — Specified ripple current values at 120 Hz and 100 kHz allow designers to evaluate performance across common low and high frequency conditions.
• Secure Snap‑In Mounting — Snap‑in terminals provide robust mechanical fixation for through‑hole assemblies and vertical board mounting.
• Clear Electrical Specification — Polarized 315 V rating and 180 µF capacitance with ±20% tolerance simplify selection for designs requiring specific bulk capacitance and voltage handling.
• Regulatory Compliance — RoHS compliance supports use in products that must meet restricted‑substances requirements.

Why Choose LGU2F181MELZ?

The LGU2F181MELZ combines a high DC voltage rating (315 V) with substantial capacitance (180 µF) in a snap‑in aluminum electrolytic package designed for long‑term operation at elevated temperatures. Its specified ripple current ratings at both low and high frequencies, and 3000‑hour endurance at 105°C, make it a well‑characterized option for designs that require reliable polarized bulk capacitance and thermal robustness.

As part of Nichicon's LGU series, this snap‑in radial can capacitor is suited to engineers and procurement teams specifying general‑purpose electrolytics for power filtering, smoothing, and other polarized capacitor roles where clear, verifiable specifications and RoHS compliance are required.

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