RS81C331MCN1

The RS81C331MCN1 from Nichicon is a conductive polymer aluminum solid electrolytic capacitor in a radial lead can. It provides 330 µF capacitance at a 16 V rating in a low-profile φ6.3 × 8 mm package with 2.5 mm lead spacing.

Designed for general‑purpose electronic designs that require low ESR and high ripple current in a compact radial lead form, this part offers a 2000‑hour endurance at 105°C, RoHS compliance, and mass‑production availability.

Key Features

• Conductive polymer aluminum construction — Solid electrolyte design for improved high‑frequency performance and stability compared with conventional liquid electrolytes.
• Low ESR / High ripple capability — Specified ESR of 12 mΩ (20°C, 100 kHz) and rated ripple currents of 468 mA at 120 Hz and 4.68 A at 300 kHz enable robust AC handling.
• Low profile radial package — Compact φ6.3 × 8 mm can with 2.5 mm lead spacing for space‑constrained board layouts.
• Temperature and endurance — Operating range −55°C to 105°C with a rated life/endurance of 2000 hours at 105°C under rated voltage.
• Electrical tolerance and dissipation — 330 µF capacitance with ±20% tolerance and tan δ 0.10 (measured at 20°C, 120 Hz) for predictable performance.
• Manufacturing and compliance — Supplied in bulk/bag packing, RoHS compliant and in mass production from the Nichicon RS8 series.

Typical Applications

• General-purpose electronic circuits — Use where compact radial capacitors with low ESR and measurable ripple handling are required.
• Power filtering and decoupling — Suitable for circuits that demand high ripple current capability and low equivalent series resistance at high frequency.
• Compact board designs — Low-profile φ6.3 × 8 mm package fits dense assemblies that need axial/radial lead components.

Unique Advantages

• High AC handling in a small footprint: 4.68 A ripple current rating at 300 kHz paired with a φ6.3 × 8 mm package lets designers support higher ripple in compact layouts.
• Low ESR for improved transient response: 12 mΩ ESR (20°C/100 kHz) reduces losses and supports stable operation at high switching frequencies.
• Wide operating temperature range: −55°C to 105°C extends applicability across varied ambient environments while maintaining performance.
• Documented endurance: 2000 hours at 105°C under rated voltage gives a clear baseline for thermal life and reliability planning.
• Tolerance and dissipation control: ±20% capacitance tolerance and tan δ 0.10 (20°C, 120 Hz) enable predictable filter and timing behavior.
• Production-ready supply: Mass production status and bulk/bag packing support volume assembly and procurement planning.

Why Choose RS81C331MCN1?

RS81C331MCN1 is positioned to serve designs that need a compact, low‑ESR radial capacitor with strong ripple current capability and defined high‑temperature endurance. Its conductive polymer construction and series pedigree (Nichicon RS8) make it suitable for engineers prioritizing stable high‑frequency performance in space‑constrained assemblies.

This part is a fit for procurement and design teams seeking a readily available, RoHS‑compliant radial capacitor with clear electrical and lifetime specifications for planning and validation in general‑purpose electronics applications.

Request a quote or contact sales to check availability and pricing for RS81C331MCN1 and to discuss volume or packaging options.