RNS1A221MDN1

The RNS1A221MDN1 from Nichicon is a conductive polymer aluminum solid electrolytic capacitor in a radial-lead can, rated 220 µF at 10 V with ±20% tolerance. It delivers low ESR performance and high ripple-current capability in a compact φ10 × 12.5 mm package for general-purpose electronic applications.

Designed for demanding thermal and ripple environments, this polarized radial capacitor supports an operating temperature range of −55 °C to 105 °C and a rated endurance of 2000 hours at 105 °C, offering stable capacitance, controlled dissipation factor, and predictable leakage behavior over time.

Key Features

• Capacitance & Voltage — 220 µF nominal capacitance at a 10 V rated voltage with ±20% tolerance (measured at 120 Hz, 20 °C).
• Conductive Polymer Dielectric — Solid conductive polymer construction for improved ESR and ripple handling compared with conventional electrolytes; specified tanδ of 0.07 at 20 °C, 120 Hz.
• Low ESR & High-Frequency Performance — ESR specified at 10 mΩ (20 °C, 100 kHz) and high-frequency ripple-current rating of 5.5 A at 300 kHz for demanding switching environments.
• Ripple Current Capability — Low-frequency ripple current rating of 550 mA at 120 Hz and a frequency coefficient table in the series datasheet for frequency-dependent ripple sizing.
• Reliability & Endurance — Endurance rated 2000 hours at 105 °C under rated voltage with specified limits for capacitance change, tanδ, ESR, and leakage current after test.
• Package & Mounting — Radial lead, polarized can with φ10 × 12.5 mm body, 5.0 mm lead spacing (±0.5 mm), supplied in bulk or bag packing for through-hole assembly.
• Leakage Current — Specified leakage current of 330 µA (measured after 2 minutes at 20 °C under rated voltage conditions as per series specification).

Typical Applications

• General-purpose electronics — Use where a polarized, compact energy-storage element is required; the 220 µF capacitance and 10 V rating suit many low-voltage board-level circuits.
• Power-supply filtering — Low ESR (10 mΩ at 100 kHz) and high ripple-current capability (5.5 A at 300 kHz) support smoothing and decoupling in high-frequency switching supplies.
• High-frequency power stages — Solid conductive polymer construction and specified tanδ (0.07 at 120 Hz) provide stable dissipation characteristics useful in switching and DC‑DC converter outputs.
• Industrial and commercial electronics — Wide operating temperature range (−55 °C to 105 °C) and 2000-hour endurance at 105 °C offer predictable long-term behavior in temperature-stressed assemblies.

Unique Advantages

• High ripple tolerance: Rated ripple current up to 5.5 A at 300 kHz enables use in high-frequency switching environments without excessive heating.
• Very low ESR: 10 mΩ ESR at 100 kHz reduces voltage drop under load and improves efficiency in power-handling circuits.
• Compact through-hole form factor: φ10 × 12.5 mm radial can with 5.0 mm lead spacing provides a small PCB footprint for board-level energy storage.
• Wide temperature endurance: −55 °C to 105 °C operating range combined with 2000 hours life at 105 °C supports thermal robustness in harsh environments.
• Predictable electrical limits: Specified tanδ, leakage current, and ESR limits and endurance criteria allow engineers to perform reliable lifetime and derating assessments.
• Flexible packaging: Available in bulk or bag packing for through-hole assembly workflows.

Why Choose RNS1A221MDN1?

The RNS1A221MDN1 balances high-frequency performance and thermal endurance in a compact radial-lead package. With a conductive polymer dielectric, low ESR (10 mΩ at 100 kHz), and strong ripple-current ratings, it is positioned for engineers seeking reliable, board-level capacitance for general-purpose power filtering and decoupling at low voltages.

This part is well suited to design teams and procurement organizations that require predictable electrical behavior (tanδ, leakage, ESR) and long-term endurance at elevated temperatures, backed by Nichicon’s RNS series specifications.

For pricing, availability, or to request a quote for RNS1A221MDN1, please contact sales or submit a quote request through your preferred purchasing channel.