LGU2P391MELY

The LGU2P391MELY is an aluminum electrolytic capacitor in a snap‑in terminal, radial can package from Nichicon's LGU series. It provides 390 µF capacitance at a 220 V rated voltage with ±20% tolerance and is specified for general purpose use.

Designed for elevated-temperature operation, this capacitor is rated to operate from −40°C to 105°C and endures 3000 hours at 105°C under rated ripple current as specified in the datasheet.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with a 220 V rated voltage and ±20% tolerance (measured at 120 Hz, 20°C).
• High‑Temperature Endurance — Specified for operation from −40°C to 105°C with an endurance rating of 3000 hours at 105°C under D.C. bias plus rated ripple current.
• Ripple Current Handling — Rated ripple current of 1.4 A at 120 Hz (low frequency) and 2.1 A at 50 kHz (high frequency), with frequency coefficients provided in the series datasheet.
• Leakage & Loss — Leakage current specified as 870 µA and leakage limits per datasheet formula I ≤ 3·CV (µA) after 5 minutes; tangent of loss angle (tan δ) limits are defined by rated voltage class.
• Package & Mounting — Radial, snap‑in can package (φ20 × 45 mm) for robust mechanical retention and straightforward panel or board mounting.
• Regulatory Status — RoHS compliant as indicated in the product data and LGU series documentation.

Typical Applications

• General Purpose — Specified as "General Purpose" in the product data; suited where a 390 µF, 220 V snap‑in electrolytic capacitor is required.
• High‑Temperature Environments — The −40°C to 105°C operating range and 3000‑hour endurance at 105°C support use in elevated‑temperature applications.
• High Ripple Current Circuits — With rated ripple currents of 1.4 A (120 Hz) and 2.1 A (50 kHz), this part is appropriate where sustained ripple handling is needed at the listed frequencies.

Unique Advantages

• Long Endurance at 105°C: Rated for 3000 hours at 105°C under rated ripple conditions, providing predictable life performance at elevated temperatures.
• Dual‑frequency Ripple Ratings: Published ripple current values for both low (120 Hz) and high (50 kHz) frequencies help with accurate thermal and lifetime budgeting.
• Snap‑in Radial Can: φ20 × 45 mm snap‑in construction enables secure mounting and simplified mechanical assembly for panel or board installations.
• Measured Leakage and Loss Limits: Leakage current and tan δ specifications are provided, enabling reliable electrical design and verification against datasheet limits.
• RoHS Compliant: Meets RoHS requirements as stated in the product documentation.

Why Choose LGU2P391MELY?

LGU2P391MELY is positioned for designs that require a robust, snap‑in aluminum electrolytic solution rated to 220 V with substantial capacitance (390 µF) and operation up to 105°C. The LGU series documentation specifies endurance and ripple handling that support predictable performance in demanding thermal and ripple environments.

This part is appropriate for engineers and procurement teams seeking a Nichicon LGU series capacitor with defined leakage, loss angle limits, and frequency‑dependent ripple ratings, offering clear specification data to support system-level thermal and lifetime assessments.

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