RNS1C181MDN1

The RNS1C181MDN1 is a conductive polymer aluminum solid electrolytic capacitor in a radial-lead can designed for general-purpose electronic applications. With 180 µF capacitance at 16 V, low ESR and high ripple-current capability, it is suited for power decoupling, smoothing and high-frequency AC signal handling where compact radial components are required.

Engineered for wide temperature operation from −55 °C to 105 °C and 2,000 hours endurance at 105 °C, this capacitor balances performance and long-term reliability in board-level power systems and consumer, industrial or communications equipment.

Key Features

• Conductive polymer aluminum solid construction — Solid electrolyte design delivers stable capacitance and electrical characteristics over time.
• Capacitance and tolerance — 180 µF nominal with ±20% tolerance at 120 Hz, 20 °C for predictable bulk energy storage and decoupling.
• Rated voltage — 16 V DC rating suitable for a wide range of low-voltage power rails.
• Low effective series resistance (ESR) — 16 mΩ measured at 20 °C / 100 kHz, supporting efficient high-frequency performance and reduced heat generation.
• High ripple-current capability — 470 mA at 120 Hz (low frequency) and 4.7 A at 300 kHz (high frequency) to handle both bulk and high-frequency ripple currents.
• Tangent of loss angle (tan δ) — 0.08 specified at 20 °C, 120 Hz for controlled dielectric losses.
• Leakage current — 432 µA after 2 minutes at rated voltage and 20 °C, enabling predictable standby and quiescent behavior.
• High-temperature endurance — Life rating of 2000 hours at 105 °C and rated voltage to support elevated-temperature operation.
• Radial-lead package — φ8 × 11.5 mm can with 3.5 mm lead spacing (±0.5 mm) for through-hole assemblies; available in bulk or bag packing.
• Polarized — Intended for polarized circuit use where orientation is controlled.

Typical Applications

• Power supply smoothing — Bulk decoupling on low-voltage rails where 180 µF and low ESR reduce voltage ripple and improve transient response.
• DC–DC converter output filtering — Handles high-frequency ripple currents (up to 4.7 A at 300 kHz) for compact converter designs.
• Consumer and industrial electronics — General-purpose energy storage and filtering in board-level assemblies operating across −55 °C to 105 °C.
• Communications equipment — High-frequency performance and low dielectric loss benefit power conditioning in RF and data systems.

Unique Advantages

• High ripple tolerance: Rated ripple current of 4.7 A at 300 kHz and 470 mA at 120 Hz supports both HF and LF filtering demands, reducing the need for multiple capacitors.
• Low ESR for efficiency: 16 mΩ ESR at 100 kHz minimizes I²R losses and thermal rise in power-dense designs.
• Wide temperature range and endurance: −55 °C to 105 °C operation with 2000-hour life at 105 °C provides predictable long-term behavior in demanding environments.
• Compact radial form factor: φ8 × 11.5 mm can and 3.5 mm lead spacing deliver a small, through-hole footprint for retrofit, prototyping or mixed-technology boards.
• Stable dielectric characteristics: tan δ of 0.08 (20 °C, 120 Hz) and defined leakage current support consistent performance across assemblies and test conditions.
• Production readiness: Listed as mass production and available in bulk/bag packing for volume assembly needs.

Why Choose RNS1C181MDN1?

The RNS1C181MDN1 positions itself as a reliable, compact solution for designers needing a high-capacitance, low-ESR radial electrolytic capacitor for general-purpose power filtering and decoupling. Its conductive polymer construction, clearly specified electrical parameters and elevated-temperature endurance make it suitable for board-level power rails in consumer, industrial and communications equipment.

As part of Nichicon’s RNS series, this part combines measurable high-frequency ripple handling, low loss (tan δ) and a small can footprint to simplify BOM choices and deliver consistent performance across production runs.

Request a quote or submit an inquiry to receive pricing and availability for RNS1C181MDN1 and to discuss packaging or volume options.