LGA2W391MELA50

The LGA2W391MELA50 is a snap‑in terminal aluminum electrolytic capacitor designed for general‑purpose power applications. It features a 390 µF capacitance at 450 V in a radial, can-style snap‑in package optimized for high ripple current and long operating life.

Engineered to withstand sustained ripple at elevated temperature, this capacitor is rated for operation from -40 °C to +105 °C and is specified to endure 5000 hours under rated ripple conditions at 105 °C. It is RoHS compliant.

Key Features

• High Capacitance — 390 µF nominal capacitance with ±20% tolerance to support bulk energy storage and smoothing functions.
• High Voltage — Rated voltage 450 V for applications requiring elevated DC bus or high‑voltage filtering.
• High Ripple Endurance — Rated ripple current of 2.2 A at 120 Hz (105 °C) and 3.146 A at 50 kHz, with guaranteed endurance of 5000 hours at 105 °C under rated ripple conditions.
• Temperature Range and Reliability — Operating temperature range from -40 °C to +105 °C and endurance specifications that limit capacitance change to within ±20% after the 5000 h test.
• Leakage and Loss Characteristics — Leakage current 1.25 mA after 5 minutes at rated voltage (20 °C); tan δ ≤ 0.20 at 120 Hz, 20 °C.
• Package and Mounting — Radial, snap‑in can package (L: 5 × D: 2.5 cm) with polarized terminals for secure PCB mounting and robust mechanical retention.
• Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• Power Supply Filtering — Bulk smoothing and decoupling on high‑voltage DC buses where high capacitance and ripple endurance are required.
• Industrial Power Electronics — Energy storage and ripple handling in industrial converters and motor drive systems operating up to 105 °C.
• General Purpose High‑Voltage Circuits — Polarized energy storage for general‑purpose electronic equipment requiring long life and high ripple capability.

Unique Advantages

• Long Rated Life at Elevated Temperature — Specified to withstand 5000 hours of rated ripple at 105 °C, providing predictable aging for long‑running equipment.
• Verified High Ripple Performance — Clear rated ripple values at 120 Hz and 50 kHz allow designers to size capacitors against measured AC stress in power systems.
• High Voltage Handling — 450 V rating enables use on higher DC rails without series arrangements, simplifying BOM and layout.
• Practical Snap‑In Mounting — Radial snap‑in can eases assembly and provides solid mechanical retention for high‑current power boards.
• Measured Electrical Characteristics — Specified leakage current and tan δ values enable predictable thermal and loss calculations during design.

Why Choose LGA2W391MELA50?

The LGA2W391MELA50 combines substantial capacitance and a 450 V rating with verified high‑ripple endurance and long life at elevated temperature, making it a fit for designs that demand reliable bulk energy storage and ripple handling. Its snap‑in radial package simplifies board assembly while offering robust mechanical mounting for power electronics.

This capacitor is suited for engineers and procurement teams designing or maintaining industrial and general‑purpose high‑voltage power systems where long term performance, clear electrical specifications, and RoHS compliance are required.

To request a quotation or submit a sourcing inquiry for the LGA2W391MELA50, please contact sales with your quantity and delivery requirements. Our team can provide pricing, lead time, and ordering assistance.