LGU2G181MELA

The LGU2G181MELA is a snap-in terminal aluminum electrolytic capacitor from Nichicon’s LGU series. It provides 180 µF capacitance at a 400 V rating in a radial, snap-in can package intended for general-purpose power applications.

Engineered for robust thermal endurance, this part is rated for operation from −25 °C to 105 °C with a 3000-hour endurance at 105 °C, making it suitable for designs that require sustained high-voltage filtering and bulk energy storage in tray-packed, mass-production quantities.

Key Features

• Capacitance & Tolerance — 180 µF nominal capacitance with ±20% tolerance (measured at 120 Hz, 20 °C), providing predictable bulk capacitance for power-supply filtering and energy hold-up.
• High Voltage Rating — Rated at 400 V to support high-voltage rail applications and DC bus smoothing.
• Snap-in Radial Package — Radial, can-type snap-in terminals enable secure chassis or PCB mounting for high-current and high-reliability assemblies.
• Thermal Endurance — Specified for 3000 hours at 105 °C under rated ripple current, supporting long-term operation in elevated-temperature environments.
• Ripple Current Capability — Handles 980 mA at 120 Hz (low frequency) and 1.401 A at 50 kHz (high frequency), suitable for smoothing and decoupling across a range of switching frequencies.
• Leakage Current — Specified leakage current of 800 µA after application of rated voltage (measured conditions per part data), enabling reliable performance in DC circuits.
• Operating Temperature — −25 °C to 105 °C rating aligns with the LGU series specification for 315–450 V parts, supporting a broad set of environmental conditions.
• RoHS Compliant & Production Ready — RoHS-compliant and available in tray packing for volume production.

Typical Applications

• Power Supply Filtering — Bulk capacitance and high-voltage rating are suited for DC bus smoothing and ripple reduction in high-voltage power supplies.
• Industrial Power Electronics — Useful in motor drives and industrial converters where sustained ripple and thermal endurance are required.
• Energy Storage & Hold-up — Provides energy buffering on high-voltage rails for short-term hold-up and transient suppression.

Unique Advantages

• High-Voltage Capability: 400 V rating enables use on high-voltage rails without additional series stacking.
• Durable Thermal Endurance: 3000 hours at 105 °C under rated ripple current supports long-term reliability in elevated-temperature assemblies.
• Wide Ripple Range: Specified ripple performance at both 120 Hz and 50 kHz covers traditional line-frequency and high-frequency switching applications.
• Secure Mounting: Snap-in radial can simplifies mechanical retention for high-current, vibration-prone environments.
• Production-Friendly Packaging: Tray packing and mass-production status streamline procurement and assembly for volume manufacturing.

Why Choose LGU2G181MELA?

LGU2G181MELA combines a high 400 V rating with 180 µF capacitance in a snap-in radial can designed for robust thermal and ripple performance. Its 3000-hour endurance at 105 °C and specified ripple currents at both low and high frequencies make it a practical choice for engineers designing high-voltage power supplies, industrial converters, and energy-hold circuits that require predictable, long-term performance.

With RoHS compliance and tray packing for production, this part is positioned for volume deployment where reliability, manufacturability, and clear electrical characteristics are priorities.

Request a quote or submit a pricing inquiry to check availability and lead times for LGU2G181MELA.