LLS2W391MELC

The LLS2W391MELC is an aluminum electrolytic capacitor in a snap‑in terminal (radial can) package designed for general‑purpose applications. It delivers 390 µF capacitance at a 450 V rated voltage with a ±20% tolerance and is polarized for DC use.

Engineered for sustained ripple duty, this part withstands 3000 hours of rated ripple current at 85°C and is RoHS‑compliant, making it suitable where high‑voltage bulk capacitance and reliable long‑term performance are required.

Key Features

• High Voltage Rating – Rated voltage of 450 V to support higher DC bus and power supply applications requiring elevated voltage capability.
• Large Capacitance – 390 µF nominal capacitance with ±20% tolerance for bulk energy storage and smoothing in high‑voltage circuits.
• Snap‑In Radial Can Package – Snap‑in terminal mounting for secure board retention and straightforward insertion into chassis or PC‑board layouts.
• Rated Temperature Range – Operates from −25°C to +85°C, with rated endurance validated at 85°C for long‑term application stability.
• Endurance / Ripple Performance – Withstands 3000 hours of rated ripple current at 85°C; specified ripple current of 2.38 A at 120 Hz and 3.403 A at 50 kHz for design verification.
• Leakage Current Specification – Leakage current meets I ≤ 3√CV (µA) after 5 minutes at 20°C, enabling predictable bias‑current behavior in circuits.
• RoHS Compliant – Conforms to RoHS directive (2011/65/EU, (EU)2015/863).
• Compact Footprint – Size L: 4 × D: 3.5 cm with a seated height up to 1.575 inch, suitable for space‑conscious power assemblies.

Typical Applications

• General‑purpose power supplies – Bulk smoothing and energy storage where a 450 V, 390 µF polarized capacitor is required.
• Industrial power electronics – High‑voltage DC bus support in industrial and equipment designs that demand sustained ripple endurance at elevated temperature.
• Chassis and cabinet assemblies – Snap‑in mounting provides mechanical stability for capacitors installed in larger power modules or assemblies.

Unique Advantages

• High‑voltage capability: 450 V rating enables use on elevated DC rails without parallel components for voltage boosting.
• Designed for sustained ripple: Rated ripple current endurance of 3000 hours at 85°C reduces the need for frequent replacement in demanding environments.
• Predictable leakage behavior: Leakage current bound by I ≤ 3√CV (µA) gives designers a verifiable parameter for bias and standby calculations.
• Proven radial snap‑in form factor: Snap‑in terminals simplify mechanical retention and assembly for medium‑to‑large power modules.
• Regulatory compliance: RoHS conformity supports deployment in locations requiring restricted‑substance compliance.

Why Choose LLS2W391MELC?

The LLS2W391MELC combines a high 450 V rating with substantial 390 µF capacitance in a snap‑in aluminum electrolytic package tailored for general‑purpose high‑voltage applications. With a specified operating range of −25°C to +85°C and validated endurance of 3000 hours under rated ripple at 85°C, it provides a balanced solution for designs that require dependable bulk capacitance and long‑term ripple handling.

This capacitor is well suited to engineers and procurement teams building or maintaining high‑voltage power supplies, industrial power electronics, and assemblies where RoHS compliance and predictable electrical behavior are required. Its established snap‑in form factor and clear electrical specifications simplify BOM selection and system qualification.

If you need pricing, availability, or a formal quote for LLS2W391MELC, please request a quote or contact our sales team to submit your requirements and receive a tailored response.