LGU2E391MELB

The LGU2E391MELB is a 390 µF, 250 V aluminum electrolytic capacitor in a snap-in radial can package designed for general-purpose power applications. Built to operate up to 105°C and rated for 3,000 hours under rated ripple current at 105°C, it targets designers needing robust bulk capacitance and reliable ripple handling.

Its polarized snap-in construction simplifies PCB mounting for assemblies where durable electrical performance and RoHS compliance are required.

Key Features

• Electrical Performance  390 µF nominal capacitance at a 250 V rated voltage with ±20% tolerance provides substantial bulk energy storage for smoothing and decoupling.
• High-Temperature Endurance  Designed for operation up to 105°C with a guaranteed endurance of 3,000 hours at 105°C under D.C. bias plus rated ripple current.
• Ripple Current Capability  Specified ripple current of 1.49 A at 120 Hz and 2.235 A at 50 kHz; frequency coefficients in the datasheet allow precise ripple derating across operating frequencies.
• Robust Packaging  Snap-in terminal, radial can package for secure board retention and easy insertion in power assemblies.
• Operating Range & Polarization  Polarized capacitor rated for operation from −40°C to 105°C (for this voltage range) to cover a wide range of ambient conditions.
• Regulatory Compliance  RoHS compliant to applicable directives, supporting regulatory requirements for commercial and industrial products.

Typical Applications

• Power supply filtering and smoothing  Bulk capacitance and specified ripple current make the LGU2E391MELB suitable for smoothing DC bus and filtering applications in power electronics.
• Industrial and commercial equipment  Operation to 105°C and 3,000-hour endurance under rated ripple current supports long-term reliability in industrial assemblies and commercial systems.
• General-purpose assemblies  The snap-in radial can package provides secure mounting and straightforward integration into general-purpose electronic modules.

Unique Advantages

• High-temperature durability: 3,000-hour endurance at 105°C ensures predictable long-term performance under elevated thermal stress.
• Defined ripple handling: Published ripple current specifications at 120 Hz and 50 kHz let engineers size capacitors for specific frequency conditions with confidence.
• Large bulk capacitance at medium voltage: 390 µF at 250 V addresses energy storage needs where substantial capacitance is required at higher working voltages.
• Secure snap-in mounting: Radial snap-in terminals provide mechanical stability for assemblies subject to vibration or handling.
• Wide operating temperature range: Rated from −40°C to 105°C for consistent electrical behavior across common industrial environments.
• RoHS compliance: Suitable for markets and products requiring RoHS-aligned components.

Why Choose LGU2E391MELB?

The LGU2E391MELB combines substantial capacitance, a 250 V rating, and explicit ripple current specifications with proven high-temperature endurance to support robust power-stage and bulk-storage needs. Its snap-in radial can construction simplifies assembly while the polarized design aligns with common power-electronics topologies.

This capacitor is a practical choice for engineers and procurement teams designing industrial and commercial equipment that require durable aluminum electrolytic performance, predictable ripple behavior, and RoHS compliance.

To request a quote or submit an inquiry about availability and volume pricing for the LGU2E391MELB, please contact our sales team with your part and quantity requirements.