LGJ2D391MELB20

The LGJ2D391MELB20 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGJ series, engineered for general‑purpose power applications. It delivers 390 µF of capacitance at a 200 V rating in a low‑profile, snap‑in can (φ30 × 20 mm) designed for secure radial mounting.

Key value propositions include high temperature endurance to 105°C, robust ripple current capability across low and high frequencies, and a 3000‑hour life rating at 105°C—features that support reliable bulk energy storage and filtering in demanding power environments.

Key Features

• Electrical Capacity & Voltage — 390 µF nominal capacitance with a 200 V rated voltage, specified at ±20% tolerance.
• High‑Temperature Endurance — Rated for operation from −40°C to +105°C with a lifetime of 3000 hours at 105°C.
• Snap‑In Radial Package — φ30 × 20 mm low‑profile can with snap‑in terminals for robust mechanical retention in power assemblies.
• Ripple Current Performance — 1.08 A at 120 Hz (low frequency) and 1.62 A at 50 kHz (high frequency), enabling effective AC ripple handling across a wide frequency range.
• Leakage & Tolerance — Specified leakage current of 830 µA and capacitance tolerance of ±20% at 120 Hz, 20°C for predictable DC performance.
• Polarized Electrolytic Design — Polarized construction for bulk energy storage and smoothing in DC circuits.

Typical Applications

• General‑Purpose Power Electronics — Bulk capacitance and smoothing in general‑purpose power supplies and converters where high voltage and high‑temperature endurance are required.
• Industrial Power Systems — Energy storage and ripple suppression in industrial control and power modules operating up to 105°C.
• DC Link and Filter Networks — Bulk filtering and DC link support in assemblies that benefit from snap‑in mechanical retention and high ripple capability.

Unique Advantages

• High Temperature Reliability: 3000 hours life at 105°C supports long‑term operation in elevated ambient environments.
• Strong Ripple Handling: Rated ripple current of 1.08 A (120 Hz) and 1.62 A (50 kHz) allows stable performance across both low and high frequency ripple components.
• Space‑Efficient Low‑Profile Can: φ30 × 20 mm footprint provides substantial capacitance in a compact, low‑profile form factor for dense power assemblies.
• Secure Snap‑In Mounting: Snap‑in radial package offers reliable mechanical retention for through‑hole installations in power electronics.
• Predictable DC Characteristics: Specified leakage current (830 µA) and ±20% tolerance enable designers to plan for steady-state losses and margining.

Why Choose LGJ2D391MELB20?

LGJ2D391MELB20 is positioned for engineers seeking a proven, high‑temperature aluminum electrolytic solution with substantial bulk capacitance and solid ripple performance at 200 V. Its low‑profile snap‑in package and 3000‑hour endurance at 105°C make it well suited to power supply, DC link, and industrial power applications that require durable, predictable capacitor performance.

Manufactured by Nichicon as part of the LGJ series, this component offers a balance of electrical capacity, mechanical robustness, and thermal endurance that supports reliable long‑term operation and straightforward integration into radially mounted power assemblies.

Request a quote or contact sales to discuss availability, lead times, and how the LGJ2D391MELB20 can meet your project’s bulk capacitance and high‑temperature requirements.