LLS2E391MELZ

The LLS2E391MELZ is a snap-in terminal aluminum electrolytic capacitor designed for general-purpose power applications. It combines a 250 V rated voltage with 390 µF capacitance in a radial, snap-in can optimized for rack and chassis-mounted power circuitry.

Engineered for reliable long-term operation, this part offers high ripple-current capability, a wide operating temperature range, and a 3000-hour endurance at 85°C, making it suitable for demanding industrial and power-electronics environments where robust smoothing and bulk capacitance are required.

Key Features

• Rated Voltage & Capacitance — 250 V rated voltage with 390 µF nominal capacitance and ±20% tolerance (measured at 120 Hz, 20°C).
• Low Loss Characteristics — Tangent of loss angle (tan δ) specified at 0.15 (max) for the 250 V rating at 20°C, 120 Hz, supporting efficient energy storage with controlled dissipation.
• High Ripple Current Capability — Able to handle 1.88 A at 120 Hz (low frequency) and 2.82 A at 50 kHz (high frequency), supporting high-stress ripple environments.
• Leakage Current — Specified leakage current of 930 µA for predictable standby and quiescent behavior.
• Long Endurance — Rated for 3000 hours at 85°C under DC bias plus rated ripple current, meeting endurance criteria after restoration to 20°C as defined in the product series specifications.
• Operating Environment — Specified operating temperature range from −40°C to +85°C for broad environmental compatibility.
• Package & Mounting — Radial, snap-in can (φ22 × 35 mm length) for secure chassis or PCB mounting; supplied in tray packing and in mass production.
• RoHS Compliant — Conforms to RoHS directive requirements as stated for the LLS series.

Typical Applications

• Power Supply Filtering — Bulk smoothing and ripple reduction in general-purpose power supplies, leveraging the 250 V rating, 390 µF capacitance, and rated ripple-current capability.
• Industrial Power Electronics — Energy buffering and decoupling in industrial equipment where −40°C to +85°C operation and long 3000-hour endurance at 85°C are required.
• DC Link / Bulk Storage — High-voltage bulk capacitance for chassis-mounted DC link or intermediate storage in general-purpose power circuits, using the radial snap-in package for secure mounting.
• General-Purpose Electronic Systems — Reliable bulk capacitance for assorted general-purpose applications where RoHS compliance and predictable leakage/tan δ are important design factors.

Unique Advantages

• High Voltage Capability: 250 V rating provides room for higher-voltage general-purpose power designs while maintaining 390 µF bulk capacitance.
• Robust Ripple Handling: Specified ripple currents at both low and high frequencies enable use in applications with substantial AC stress on the capacitor.
• Endurance-Proven Design: 3000 hours endurance at 85°C under rated conditions provides quantified long-term reliability for sustained operation.
• Compact Snap-In Form Factor: φ22 × 35 mm radial, snap-in can offers a space-efficient solution for chassis or board-mounted power modules with tray packing for production assembly.
• Controlled Electrical Characteristics: Defined tan δ (0.15 max) and leakage current provide predictable performance for thermal and power-loss budgeting.
• Regulatory Compliance: RoHS compliance supports use in environmentally regulated production programs.

Why Choose LLS2E391MELZ?

LLS2E391MELZ positions itself as a durable, general-purpose snap-in aluminum electrolytic capacitor for engineers needing 250 V bulk capacitance with verified ripple current capability and long endurance at elevated temperature. Its combination of 390 µF capacitance, specified tan δ, and controlled leakage makes it suitable for power supply filtering, DC-link buffering, and other general-purpose power-electronics applications.

This part is ideal for design teams and purchasing engineers seeking a mass-production, tray-packed radial snap-in capacitor with clear endurance and electrical specifications, and RoHS compliance for regulated manufacturing environments.

If you would like pricing, lead-time information, or to request a quote for LLS2E391MELZ, please submit a quote request or contact our sales channel to discuss availability and volume options.