LGR2E391MELB30

The LGR2E391MELB30 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGR Long Life series. It delivers 390 µF capacitance at a 250 V rating in a radial, can-style snap‑in package designed for robust mounting.

Built for general-purpose power applications, this capacitor is optimized for elevated-temperature operation and extended ripple endurance, offering long life performance up to 105°C for designs that require sustained reliability under continuous ripple stress.

Key Features

• Capacitance & Voltage: 390 µF rated capacitance with a 250 V nominal voltage and ±20% tolerance for predictable energy storage in higher‑voltage circuits.
• High‑Temperature Long Life: Rated for operation up to 105°C with long life assurance—engineered to withstand 10,000 hours of ripple current application at 105°C.
• Snap‑in Radial Can Package: Snap‑in terminals and a radial can deliver secure, board-mounted installation suitable for through‑hole assemblies.
• Ripple Current Capability: Specified ripple current handling of 1.3 A at 120 Hz and 1.95 A at 50 kHz to manage AC stress and reduce thermal buildup under load.
• Wide Operating Range: Operating temperature range from −40°C to +105°C to support demanding thermal environments.
• Measured Endurance Characteristics: Endurance after 10,000 hours at 105°C meets datasheet criteria (capacitance change within ±25%, tan δ within specified limits, leakage current at or below initial specified values).
• Regulatory Compliance: RoHS compliant (2011/65/EU, (EU)2015/863).
• Polarized Design: Polarized construction for DC bulk filtering and energy storage applications.

Typical Applications

• Industrial Power Supplies: Bulk filtering and smoothing in industrial converters and power modules where long life at elevated temperatures and a 250 V rating are required.
• Uninterruptible Power Supplies (UPS) and Inverters: Energy storage and ripple absorption in DC link and smoothing stages benefiting from the capacitor’s ripple current capability and 105°C endurance.
• Power Conversion and Motor Drives: DC bus decoupling and transient buffering in motor drive and power conversion systems where robust thermal and ripple performance extend service life.
• General‑Purpose Electronic Equipment: Applications requiring reliable polarized capacitance in a secure snap‑in package for through‑hole assembly and long operational life.

Unique Advantages

• Long life under continuous ripple: Designed to withstand 10,000 hours of ripple current at 105°C, enabling longer maintenance intervals and predictable end‑of‑life behavior.
• High thermal tolerance: −40°C to +105°C operating range supports deployment in environments with elevated ambient temperatures.
• Robust ripple handling: Rated ripple currents at both low and high frequencies (1.3 A at 120 Hz; 1.95 A at 50 kHz) help control internal heating and improve operational stability.
• Secure snap‑in mounting: Snap‑in terminals provide reliable mechanical retention for through‑hole PCB assemblies, simplifying installation in power stacks and chassis mounts.
• Regulatory readiness: RoHS compliance supports conformity with environmental directive requirements for commercial and industrial products.
• Documented endurance metrics: Datasheet endurance and shelf‑life criteria (capacitance, tan δ, leakage current limits) give engineering teams measurable reliability targets.

Why Choose LGR2E391MELB30?

The LGR2E391MELB30 combines a high nominal voltage (250 V), substantial capacitance (390 µF), and a snap‑in radial package with long life assurance at elevated temperatures. Its specification set—endurance at 105°C for 10,000 hours, defined ripple current ratings, and RoHS compliance—makes it well suited to engineers designing power supplies, inverters, UPS systems, and other industrial power electronics that demand predictable performance and durability.

Choose this capacitor when design priorities include sustained ripple endurance, thermal resilience, and a through‑hole mounting form factor that simplifies secure board integration while providing measurable long‑term behavior per the series datasheet.

If you need pricing, availability, or volume quoting for LGR2E391MELB30, request a quote or submit an inquiry to discuss lead times and procurement options.