RL81C221MCNASQ

The RL81C221MCNASQ is a conductive polymer aluminum solid electrolytic capacitor in a low-profile φ8×8 mm radial-can package. It delivers ultra-low ESR and high ripple current for demanding power applications while maintaining a compact, through-hole form factor.

Designed for general-purpose electronic designs, this 220 µF, 16 V capacitor combines a wide operating temperature range (−55 °C to 105 °C) with a long rated lifetime of 5000 hours at 105 °C, and RoHS compliance for modern manufacturing requirements.

Key Features

• Capacitance & Voltage — 220 µF nominal capacitance with a rated voltage of 16 V and ±20% tolerance at 120 Hz, 20 °C.
• Ultra-low ESR — ESR of 12 mΩ measured at 20 °C and 100 kHz, enabling efficient high-frequency performance.
• High ripple current capability — Rated ripple currents include 500 mA at 120 Hz and 5 A at 300 kHz, supporting switching regulator and high-frequency power stages.
• Low-profile radial-can package — Compact φ8×8 mm case with 3.5 mm lead spacing, radial lead mounting for through-hole assembly.
• Electrical loss characteristic — tan δ of 0.12 at 120 Hz and 20 °C for predictable dissipation behavior.
• Leakage current — Specified leakage current of 704 µA (measured after 2 minutes at 20 °C under rated voltage).
• Reliability & temperature rating — Operating range −55 °C to 105 °C with a rated load life of 5000 hours at 105 °C.
• Manufacturing compatibility — Radial lead type with correspondence to lead-free flow soldering conditions and RoHS directive compliance (2011/65/EU, (EU)2015/863).

Typical Applications

• Switching regulator output filtering — Low ESR (12 mΩ) and high ripple current (up to 5 A at 300 kHz) support efficient smoothing on DC–DC converter outputs.
• High-frequency power stages — Ultra-low ESR and defined tan δ at 120 Hz help manage losses and thermal behavior in high-frequency circuits.
• Bulk decoupling for compact boards — Compact φ8×8 mm radial-can package provides bulk capacitance where board space is constrained but through-hole mounting is required.
• General-purpose electronic designs — Suitable for a wide range of general-purpose power and decoupling tasks across industrial and consumer equipment within the specified temperature and lifetime limits.

Unique Advantages

• Performance-driven ESR — 12 mΩ ESR at 100 kHz (20 °C) reduces voltage ripple and improves regulator stability at high switching frequencies.
• High-frequency ripple handling — Rated ripple current values (500 mA at 120 Hz; 5 A at 300 kHz) enable reliable operation in both low- and high-frequency power domains.
• Space-efficient, through-hole form — φ8×8 mm case and radial leads provide a balance of compact footprint and robust mechanical mounting for through-hole assemblies.
• Long high-temperature life — 5000 hours at 105 °C supports designs that require sustained operation at elevated temperature conditions.
• Manufacturing and regulatory readiness — Compatible with lead-free flow soldering conditions and compliant with RoHS (2011/65/EU, (EU)2015/863).

Why Choose RL81C221MCNASQ?

RL81C221MCNASQ positions itself as a high-performance conductive polymer aluminum capacitor for designs that demand low ESR, substantial ripple current capacity, and a compact radial-can footprint. Its combination of 220 µF capacitance, 16 V rating, and a specified lifetime of 5000 hours at 105 °C makes it suitable for engineers seeking reliable bulk and decoupling capacitance in through-hole assemblies.

The part is well suited to projects where high-frequency performance, predictable dissipation (tan δ), and compliance with lead-free soldering and RoHS requirements are important. It offers a durable option for design teams focused on long-term reliability and clear, verifiable electrical characteristics.

If you would like a quote or additional procurement information for RL81C221MCNASQ, please request a quote or contact sales to discuss availability and volume pricing.