RS81C271MCNASQ

The RS81C271MCNASQ is a conductive polymer aluminum solid electrolytic capacitor from Nichicon's RS8 series, designed for general-purpose electronics requiring low ESR and high ripple current handling in a compact radial-lead package. It combines low ESR/ESL construction and a low-profile φ6.3 can to deliver robust power-conditioning performance across a wide temperature range.

Typical markets include general-purpose power management and electronic assemblies where long load life and high-frequency ripple handling are required. Key value comes from measurable electrical performance (ESR, ripple current) and endurance at elevated temperature.

Key Features

• Conductive polymer aluminum construction — Solid electrolyte design that provides low equivalent series resistance (ESR) and low equivalent series inductance (ESL) for effective high-frequency performance.
• Electrical performance — 270 µF capacitance at 16 V with ESR of 15 mΩ measured at 100 kHz and a tolerance of ±20%; optimized for applications requiring low impedance at high frequency.
• High ripple current capability — Rated ripple current of 380 mA at 120 Hz and 3.8 A at 300 kHz, with a frequency coefficient curve defined across 120 Hz to 300 kHz to guide thermal and ripple handling.
• Reliability and endurance — Load life specified at 2000 / 5000 hours at 105°C (endurance test condition: 105°C, rated voltage) with defined limits for capacitance change, tan δ and ESR after the test.
• Mechanical and package — Radial lead (can) package with dimensions φ6.3 × 8 mm (L × D), lead spacing 2.5 mm and leaded mounting for through-hole assemblies; polarized construction.
• Wide operating temperature range — Rated for –55°C to +105°C to support designs that experience broad ambient conditions.
• RoHS compliant — Meets the RoHS directive (2011/65/EU, (EU)2015/863) and supports lead-free flow soldering conditions for radial lead types.

Typical Applications

• Power management circuitry — Low ESR (15 mΩ at 100 kHz) and high ripple current (3.8 A at 300 kHz) make this part suitable for bulk decoupling and smoothing on general-purpose power rails.
• High-frequency converters and supplies — Low ESL/ESR and frequency-specific ripple ratings help manage switching ripple and transient currents in power-conversion stages.
• Embedded and consumer electronics — Compact φ6.3 can and radial-lead mounting provide a space-efficient option for through-hole assemblies requiring reliable decoupling across –55°C to +105°C.

Unique Advantages

• Low-impedance performance: 15 mΩ ESR at 100 kHz reduces voltage ripple and improves transient response in power rails.
• High-frequency ripple handling: Rated ripple current up to 3.8 A at 300 kHz, supported by frequency coefficients across 120 Hz–300 kHz for predictable thermal planning.
• Compact, leaded package: φ6.3 × 8 mm radial-can format with 2.5 mm lead spacing allows easy integration into through-hole or mixed-technology boards.
• Proven endurance: Load-life ratings of 2000 / 5000 hours at 105°C provide documented reliability metrics for thermal-stressed designs.
• Regulatory compliance: RoHS conformity and lead-free flow soldering compatibility simplify assembly and regulatory adherence.

Why Choose RS81C271MCNASQ?

The RS81C271MCNASQ combines conductive polymer solid electrolyte technology with compact mechanical packaging and measurable electrical metrics—270 µF at 16 V, 15 mΩ ESR at 100 kHz, and high ripple-current ratings—to address general-purpose power-conditioning needs. Its endurance ratings at 105°C and wide operating temperature range make it appropriate for designs that require predictable performance over time.

This capacitor is well suited to engineers and procurement teams designing or maintaining power management, converter, and embedded systems where low impedance, high ripple capability, and through-hole mounting are priorities. The documented specifications enable straightforward thermal and electrical design tradeoffs and help ensure long-term robustness in application.

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