LAK2D391MELB25ZB

The LAK2D391MELB25ZB is a 390 µF, 200 V aluminum electrolytic capacitor in a snap‑in can package from Nichicon's LAK series. It is designed for general‑purpose power applications that require bulk capacitance, high ripple endurance and secure snap‑in mounting for panel or board assemblies.

Engineered for operation from −25 °C to +105 °C and rated for 2000 hours endurance at 105 °C under rated ripple conditions, this part targets equipment exposed to voltage fluctuation and elevated operating temperatures.

Key Features

• Capacitance & Voltage: 390 µF nominal capacitance at a 200 V rated voltage for bulk energy storage and smoothing in higher‑voltage circuits.
• Snap‑in Mounting: Radial can with snap‑in terminals for secure mechanical retention and ease of assembly in trays for mass production.
• Temperature Range & Endurance: Operates from −25 °C to +105 °C with a guaranteed endurance of 2000 hours at 105 °C under rated ripple current.
• Ripple Performance: Rated ripple current of 1.2 A at 120 Hz and 1.44 A at 10 kHz for smoothing and decoupling in power supplies.
• Safety & Reliability: LAK series safety features include a pressure relief vent and improved tolerance for abnormal voltage conditions as specified by the series datasheet.
• Physical Size & Packaging: Compact φ30 × 25 mm can size with tray packing suitable for production volumes; polarization noted (polar capacitor).
• Compliance: RoHS‑compliant per the product information.
• Tolerance: Capacitance tolerance of −20% to +20% at 120 Hz, 20 °C.

Typical Applications

• Switch‑Mode Power Supplies: Bulk smoothing and energy storage in higher‑voltage SMPS designs where 200 V rating and high ripple endurance are required.
• Industrial Power Equipment: Filtering and decoupling in industrial converters and control equipment exposed to fluctuating supply voltages and elevated temperatures.
• DC Link and Energy Storage: Local energy buffering in power stages that need compact 390 µF capacitance at 200 V with robust ripple handling.

Unique Advantages

• High‑Voltage Capability: 200 V rating enables use in higher‑voltage power rails without stepping up component count.
• Designed for Elevated Temperatures: Rated operation to 105 °C and 2000‑hour endurance at that temperature supports long life in hot environments.
• Proven Ripple Handling: Specified ripple currents at 120 Hz and 10 kHz provide predictable performance for both low‑ and high‑frequency ripple conditions.
• Secure Mechanical Mounting: Snap‑in terminals simplify assembly and provide reliable retention in production hardware.
• Safety‑Focused Design: Series safety measures such as a pressure relief vent address abnormal voltage events per the LAK series specification.
• RoHS Compliant: Meets the RoHS directive as noted in the product information.

Why Choose LAK2D391MELB25ZB?

The LAK2D391MELB25ZB combines 390 µF bulk capacitance with a 200 V rating in a compact snap‑in can designed for continuous operation up to 105 °C. Its specified ripple current ratings and 2000‑hour endurance at high temperature make it a practical choice for power conversion, filtering and energy storage tasks in equipment that experiences voltage fluctuation or sustained thermal stress.

Manufactured by Nichicon as part of the LAK series, this capacitor is positioned for engineers and procurement teams looking for a reliable, production‑ready electrolytic solution with clear, spec‑based performance characteristics.

Request a quote or submit an inquiry to receive pricing and lead‑time information for LAK2D391MELB25ZB and to discuss volume availability for your production needs.