LAR2G391MELA50

The LAR2G391MELA50 is a snap-in terminal aluminum electrolytic capacitor optimized for general-purpose power applications. It delivers 390 µF at a 400 V rating in a radial can snap-in package with tray packing for production assembly.

Designed for high-voltage DC bus and bulk energy storage use, this capacitor combines high ripple capability and a wide operating temperature range to support reliable operation in demanding power-conversion environments.

Key Features

• Capacitance & Voltage: 390 µF nominal capacitance at a 400 V rated voltage provides substantial bulk storage for high-voltage DC rails.
• Snap-In Package: Radial, can-type snap-in mounting simplifies mechanical retention and PCB assembly for high-current power assemblies.
• High Ripple Performance: 1.55 A ripple current at 120 Hz (low frequency) and 2.2165 A at 50 kHz (high frequency) support heavy AC ripple conditions on DC buses.
• Endurance at Elevated Temperature: Rated for 2000 hours at 105°C under specified conditions, enabling sustained performance in thermally stressed applications.
• Wide Operating Range: Specified for operation from −25°C to +105°C to cover a broad set of industrial environments.
• Loss and Leakage Characteristics: Tan δ (DF) specified at 0.15 max (120 Hz, 20°C) with a listed leakage current of 1180 µA, facilitating predictable dissipation and bias behavior.
• Overvoltage Resilience: Series-level design reduces short incidence when subjected to overvoltage conditions (rated voltage × 1.5), per product series specifications.
• RoHS Compliant & Production Ready: RoHS-compliant construction and mass-production availability with tray packing.

Typical Applications

• Power Supplies: Bulk filtering and energy storage on 400 V intermediate/DC bus rails to support hold-up and smoothing functions.
• Industrial Power Conversion: DC-link and smoothing capacitor in inverters, converters, and motor-drive power stages that require high-voltage bulk capacitance.
• UPS and Energy Backup Systems: Reservoir capacitance for maintaining DC bus stability and improving transient response in backup power designs.
• High-Voltage Power Electronics: General-purpose smoothing and ripple mitigation where 400 V rated electrolytic capacitance is required.

Unique Advantages

• High-Voltage Bulk Storage: 390 µF at 400 V supplies significant stored energy for DC bus applications, reducing the need for multiple parallel components.
• Robust Ripple Handling: Specified ripple currents at both low and high frequencies allow designers to address a range of switching and line-frequency ripple profiles.
• Long Endurance at 105°C: 2000-hour endurance at top operating temperature supports predictable lifetime in elevated-temperature enclosures.
• Snap-In Mounting for Secure Assembly: Snap-in terminals provide mechanical stability and straightforward installation for production boards.
• Predictable Electrical Losses: Low tan δ (0.15 max at 120 Hz, 20°C) and defined leakage current help estimate power dissipation and thermal behavior in designs.
• Regulatory Compliance: RoHS compliance ensures suitability for global electronics production environments.

Why Choose LAR2G391MELA50?

The LAR2G391MELA50 positions itself as a reliable, production-ready solution for designers who need substantial high-voltage bulk capacitance in a snap-in, radial can package. Its combination of 400 V rating, high ripple capability, and 2000-hour endurance at 105°C makes it suitable for robust power-conversion and energy-storage roles in industrial and general-purpose electronics.

Engineers specifying this capacitor benefit from predictable electrical parameters (capacitance tolerance ±20%, tan δ, leakage current) and a form factor intended for secure mounting and high-volume assembly with tray packing and mass-production availability.

Request a quote or contact sales for pricing, lead-time and tray-pack availability of LAR2G391MELA50.