LGW2E391MELZ35

The LGW2E391MELZ35 from Nichicon is a snap‑in terminal aluminum electrolytic capacitor in the LGW series, rated 390 µF at 250 V. It is a polarized, radial can (snap‑in) capacitor designed for general‑purpose power applications that require high ripple current capability and extended endurance at elevated temperature.

Key value comes from its high ripple current performance, 105 °C operating capability, and verified endurance — specified to withstand 3000 hours of rated ripple current at 105 °C — making it suitable where sustained thermal and ripple stress are expected.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with a rated voltage of 250 V and tolerance of −20% to +20% (measured at 120 Hz, 20 °C).
• High Ripple Current & Frequency Performance — Rated ripple current of 1.95 A at 120 Hz and 2.925 A at 50 kHz; frequency coefficients in the LGW series support higher allowable ripple at frequencies above 120 Hz.
• High‑Temperature Endurance — Specified to withstand 3000 hours of rated ripple current at 105 °C with capacitance change within ±20% and leakage current within initial limits after endurance testing.
• Operating Temperature Range — −40 °C to 105 °C for 200–250 V types, matching the LGW2E391MELZ35’s 250 V rating.
• Package & Mounting — Snap‑in terminal radial can for robust, low‑impedance PCB mounting and secure mechanical retention.
• Leakage Current Specification — Leakage current specified per series formula I ≤ 3√(C·V) µA after 5 minutes at 20 °C, supporting predictable end‑of‑line and in‑system behavior.
• RoHS Compliant — Meets RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Power Supply Filtering — Bulk smoothing and decoupling on DC power rails where 250 V rating and high ripple current capability are required.
• Industrial Power Conversion — Energy storage and ripple handling in general‑purpose industrial converters and power modules operating up to 105 °C.
• Uninterruptible Power Supplies and Inverters — Bulk capacitance and ripple endurance for energy buffering and filtering under sustained thermal stress.
• High‑Ripple General‑Purpose Circuits — Circuits that demand sustained ripple current handling and long life under elevated temperatures.

Unique Advantages

• Designed for sustained ripple stress: Rated and validated to withstand 3000 hours of rated ripple current at 105 °C, providing predictable lifetime performance under continuous ripple loading.
• Frequency‑responsive ripple capacity: Measured ripple current values at both 120 Hz and 50 kHz (1.95 A and 2.925 A respectively) and series frequency coefficients enable designers to size capacitors for different ripple spectra.
• Robust thermal range: −40 °C to 105 °C operation (for 200–250 V types), suitable for applications with wide ambient variation.
• Secure snap‑in mounting: Radial, snap‑in can delivers mechanical stability and straightforward through‑hole PCB assembly for power modules and chassis‑mount designs.
• Predictable leakage behavior: Leakage current governed by the series formula I ≤ 3√(C·V) µA supports accurate power‑budgeting and end‑of‑life assessments.
• Regulatory compliance: RoHS conformity ensures material compliance for global production requirements.

Why Choose LGW2E391MELZ35?

LGW2E391MELZ35 combines a 390 µF, 250 V rating with high ripple current capability and a 105 °C endurance profile, offering a durable solution for general‑purpose power filtering and energy buffering. Its snap‑in radial can and defined leakage and endurance specifications make it straightforward to integrate into power subsystems where sustained ripple and elevated temperatures are expected.

This part is well suited to designers and buyers of industrial power electronics, UPS/inverter systems, and general‑purpose power supplies who need verifiable ripple performance, predictable lifetime at high temperature, and RoHS compliance backed by Nichicon’s LGW series specification set.

Request a quote or submit an inquiry for pricing and availability to evaluate LGW2E391MELZ35 for your next design.