LGU2D391MELY

The LGU2D391MELY is a snap-in terminal aluminum electrolytic capacitor from Nichicon's LGU series. It is a polarized, radial can capacitor specified for 200 V and 390 µF with a 105°C standard temperature rating.

Designed for general-purpose power-electronics use, the part delivers long-term ripple endurance and RoHS-compliant construction, making it suitable for applications that require durable, high-voltage bulk capacitance in a snap-in package.

Key Features

• Capacitance and Voltage — 390 µF rated capacitance at 200 V, with a tolerance of ±20% (120 Hz, 20°C).
• High Temperature Rating — Rated for operation to 105°C with endurance of 3000 hours when subjected to D.C. bias plus rated ripple current at 105°C.
• Snap-in Radial Can Package — Snap-in terminal type designed for secure PCB mounting in radial, can-style form factor (size: L 4 × D 2 cm).
• Ripple Current Performance — Specified ripple current of 1.31 A at 120 Hz and 1.965 A at 50 kHz; frequency coefficients in the LGU series allow increased ripple capability at higher frequencies for 160–250 V rated devices.
• Leakage and Loss Characteristics — Leakage current meets I ≤ 3CV (µA) after 5 minutes at 20°C; tangent of loss angle (tan δ) for the 160–420 V range is specified (max. 0.15 at 120 Hz, 20°C by series data).
• Operating Temperature Range — −40°C to +105°C, suitable for a wide range of ambient conditions within the LGU specification.
• RoHS Compliant — Meets RoHS directive (2011/65/EU, (EU)2015/863) requirements.

Typical Applications

• Power supply filtering — Bulk capacitance and high-voltage rating support smoothing and decoupling in general-purpose power supplies.
• Industrial power electronics — Snap-in mounting and 105°C endurance make it suitable for general-purpose industrial equipment requiring durable bulk capacitors.
• Energy storage and buffering — Provides local energy storage and transient buffering in systems operating at or below 200 V.

Unique Advantages

• Long ripple endurance: Rated to withstand 3000 hours of D.C. bias plus rated ripple current at 105°C, providing predictable life under high-temperature ripple stress.
• High-frequency ripple capability: Explicit ripple current specifications at 120 Hz and 50 kHz plus series frequency coefficients enable designers to assess ripple performance across frequency ranges.
• Robust snap-in mounting: Snap-in radial can package provides secure PCB retention for through-hole assemblies and straightforward replacement or serviceability.
• Clear electrical limits: Leakage current and tan δ are specified in accordance with LGU series parameters, enabling reliable selection and qualification in designs.
• Compliance and chain-of-supply confidence: RoHS compliance supports environmental and regulatory requirements for commercial and industrial products.

Why Choose LGU2D391MELY?

LGU2D391MELY combines a 200 V rating and 390 µF capacitance in a snap-in aluminum electrolytic package engineered for continuous operation to 105°C with defined ripple endurance. Its published leakage, tan δ, and frequency-dependent ripple data let engineers quantify performance and lifetime for general-purpose power-electronics designs.

This part is suited to designers and procurement teams seeking a Nichicon LGU-series capacitor for robust bulk capacitance, straightforward PCB mounting, and standardized electrical specifications—helping to simplify selection and support predictable in-service performance.

Request a quote or submit a product inquiry for LGU2D391MELY to receive pricing, lead-time, and availability information.