LLS2V821MELC

The LLS2V821MELC is an aluminum electrolytic, snap-in terminal capacitor from Nichicon’s LLS series, rated at 820 µF and 350 V. It is designed for general-purpose power electronics where high-voltage energy storage and sustained ripple handling are required.

Key value comes from its high-voltage rating, robust ripple-current capability and long endurance—specifically a 3000 hour life at 85°C—making it suitable for demanding industrial and power-supply environments.

Key Features

• Capacitance & Voltage: 820 µF nominal capacitance with a 350 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• Snap‑in Radial Package: Radial, can-type snap-in terminals for secure PCB mounting and high-current connections; tray packing for production handling.
• Endurance & Temperature Range: Rated for 3000 hours at 85°C; operating temperature range −25°C to +85°C (category rating for 350 V).
• Ripple Current Capability: Low-frequency ripple current 3.47 A at 120 Hz and high-frequency ripple current 4.962 A at 50 kHz—supports heavy ripple conditions in power circuits.
• Loss Tangent (tan δ): tan δ ≤ 0.15 at 120 Hz and 20°C for the 350 V rating, indicating controlled dissipation at the specified conditions.
• Leakage Current: Specified leakage current 1600 µA (measured per datasheet conditions after application of rated voltage).
• Physical Dimensions: Can diameter 35 mm × length 45 mm (φ35 × 45L); nominal dimension L: 4.5 × D: 3.5 cm; height seated max 1.772 in.
• Compliance: RoHS‑compliant per product data.

Typical Applications

• Power supplies: Bulk energy storage and smoothing for high‑voltage DC rails where 350 V rating and sustained ripple handling matter.
• Industrial power electronics: DC link and filter applications that require high-voltage, high-ripple capacitors with long endurance at elevated temperatures.
• Energy storage modules: Where compact, snap‑in radial cans provide robust mounting for repeated ripple and long service periods.

Unique Advantages

• High-voltage capability: 350 V rating enables use on higher DC rails without stacking.
• Sustained endurance: 3000 hours at 85°C under rated conditions provides predictable lifetime performance for continuous-duty applications.
• Strong ripple handling: Defined low- and high-frequency ripple current ratings (3.47 A @120 Hz, 4.962 A @50 kHz) support designs with significant AC stress.
• Low dissipation at rated conditions: tan δ ≤ 0.15 at 120 Hz and 20°C for the 350 V version, helping manage internal heating under AC stress.
• Secure snap‑in mounting: Radial snap‑in can simplifies PCB retention for high-current, vibration-prone installations.
• Regulatory readiness: RoHS compliance for environmental and regulatory alignment.

Why Choose LLS2V821MELC?

LLS2V821MELC combines a high 350 V rating with substantial capacitance (820 µF) and defined ripple-current performance to address general-purpose high-voltage power designs that need reliable energy storage and filtering. Its 3000 hour endurance at 85°C and tightly specified tan δ and leakage characteristics deliver predictable behavior over long operating periods.

This part is ideal for engineers specifying robust electrolytic capacitors for industrial power supplies, DC link applications and energy storage modules where proven electrical performance, secure snap‑in mounting and RoHS compliance are required.

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