LGR2D391MELZ35

The LGR2D391MELZ35 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LGR long‑life series. It delivers 390 µF of polarized capacitance at a 200 V rating in a radial, snap‑in can package designed for general‑purpose applications.

Engineered for elevated‑temperature operation and extended endurance, this part supports continuous use from −40 °C to +105 °C and is specified for 10,000 hours of ripple‑current endurance at 105 °C. The device is RoHS compliant and marked with white lettering on a black sleeve.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with a 200 V rated voltage; capacitance tolerance ±20% (measured at 120 Hz, 20 °C).
• Long‑life Endurance — Specified to withstand 10,000 hours of D.C. bias plus rated ripple current at 105 °C with defined limits for capacitance change, tan δ, and leakage current.
• High Temperature Range — Operating temperature range from −40 °C to +105 °C (for 200 V ratings), supporting high‑temperature system environments.
• Snap‑in Radial Package — Snap‑in terminal (radial, can‑snap in) package for secure board mounting and mechanical stability in power assemblies.
• Ripple Current Capability — Rated ripple current of 1.3 A at 120 Hz (low frequency) and 1.95 A at 50 kHz (high frequency); frequency coefficients available for scaling ripple at other frequencies.
• Leakage & Loss Characteristics — Leakage current defined by I ≤ 3√(C·V) µA after 5 minutes at 20 °C; tan δ maximum 0.15 for 200 V parts (measured at 120 Hz, 20 °C).
• Shelf Life & Stability — Shelf life performance defined after 1,000 hours at 105 °C with subsequent voltage treatment: capacitance change within ±15%, tan δ ≤ 150% of initial specified value, and leakage current ≤ initial specified value.
• Regulatory — RoHS compliant.

Typical Applications

• General‑purpose electronics — Suited for designs that require a polarized 390 µF, 200 V aluminum electrolytic capacitor for bulk capacitance in general‑purpose circuits.
• High‑temperature systems — Applicable where components must operate reliably up to +105 °C with long endurance under ripple current stress.
• Snap‑in power assemblies — Designed for assemblies that use snap‑in radial cans to secure large electrolytic capacitors on power and control boards.

Unique Advantages

• Long, specified operating life: 10,000 hours endurance at 105 °C provides predictable ageing limits for long‑running equipment.
• High temperature capability: −40 °C to +105 °C rating supports deployment in demanding thermal environments.
• Robust ripple handling: Defined ripple current ratings at 120 Hz and 50 kHz plus frequency coefficients allow designers to size for real‑world AC stress.
• Practical, secure mounting: Snap‑in radial can simplifies board assembly and mechanical retention for large capacitance parts.
• Clear specification limits: Measured leakage, tan δ, and shelf life/endurance requirements give engineers verifiable performance boundaries.
• RoHS compliant: Meets RoHS directive requirements for lead‑restricted designs.

Why Choose LGR2D391MELZ35?

The LGR2D391MELZ35 provides a combination of high capacitance (390 µF), substantial voltage rating (200 V), and long‑life endurance tailored for general‑purpose and high‑temperature applications. As part of Nichicon's LGR series, the part carries clear, datasheet‑defined limits for capacitance drift, tan δ, and leakage after prolonged stress and storage.

This capacitor is appropriate for designers and procurement teams specifying polarized snap‑in aluminum electrolytics where predictable ripple handling, long operating life at elevated temperatures, and RoHS compliance are required.

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