LLS2D391MELZ

The LLS2D391MELZ from Nichicon is a snap‑in terminal aluminum electrolytic capacitor designed for general‑purpose power applications. As a member of the LLS series, it combines a 390µF capacitance with a 200V rating and snap‑in mounting to deliver robust ripple handling and long operational life in radial can packages.

Engineered for industrial and electronic power systems, this component targets designers who need bulk capacitance, reliable ripple current endurance and a compact φ22×30mm footprint with tray packing for volume assembly.

Key Features

• Capacitance & Voltage — 390µF nominal capacitance with a 200V rated voltage and ±20% tolerance, suitable for high‑voltage bulk and smoothing applications.
• Snap‑in Radial Package — Snap‑in terminal, radial can package (φ22×30mm) for secure board mounting and straightforward insertion in power assemblies.
• High Ripple Current Capability — Rated ripple currents of 1.73A at 120Hz and 2.595A at 50kHz support sustained AC stress in power supplies and converters.
• Low Loss (tan δ) — tan δ of 0.15 (max) measured at 20°C and 120Hz for the 200V rating, indicating controlled dissipation for stable operation.
• Leakage & Endurance — Specified leakage current of 830µA and an endurance rating of 3000 hours at 85°C (with rated ripple and DC bias), providing predictable long‑term behavior.
• Temperature Range & Compliance — Operating temperature –40°C to +85°C and RoHS compliance for broader environmental acceptance.
• Production & Packaging — Mass production status with tray packing to support volume procurement and manufacturing workflows.

Typical Applications

• Power Supply Filtering — Bulk smoothing and ripple reduction in high‑voltage DC power supplies where 200V rating and high ripple current are required.
• Power Conversion — Energy storage and decoupling in switch‑mode power supplies and converters that demand sustained ripple handling at both low and high frequencies.
• Industrial Electronics — General‑purpose bulk capacitance for control systems and industrial power modules operating across –40°C to +85°C.

Unique Advantages

• High Voltage Capability: 200V rating enables use in higher‑voltage rails without parallel components.
• Robust Ripple Endurance: Rated ripple currents at 120Hz and 50kHz allow the capacitor to manage both low‑ and high‑frequency ripple stresses.
• Long Operational Lifetime: 3000 hours at 85°C under rated conditions ensures predictable lifecycle performance for maintenance planning.
• Compact Snap‑in Form Factor: φ22×30mm radial can with snap‑in terminals simplifies mechanical retention and PCB installation in power assemblies.
• RoHS Compliant: Meets RoHS requirements for environmentally restricted substances, supporting regulatory compliance in assemblies.
• Production‑Ready Packaging: Tray packing and mass production availability streamline sourcing and board‑level integration.

Why Choose LLS2D391MELZ?

LLS2D391MELZ is positioned for designs that require a balance of high voltage, substantial bulk capacitance and demonstrated ripple endurance in a compact snap‑in can. Its specified leakage, controlled dissipation (tan δ), and 3000‑hour endurance at 85°C provide engineers with verifiable performance metrics for power supply smoothing and energy storage tasks.

This Nichicon LLS series part is well suited to engineers and procurement teams building industrial power modules, converters and general‑purpose electronic systems where dependable capacitance, predictable lifetime, and production‑friendly packaging matter.

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