RNU1C271MDN1

The RNU1C271MDN1 is a conductive polymer solid aluminum electrolytic capacitor in a radial-lead can, offering 270 µF capacitance at a 16 V rating. It is designed for general-purpose power decoupling and filtering where low ESR and high ripple-current capability are required.

Key value propositions include low equivalent series resistance (8 mΩ at 20°C/100 kHz), strong high-frequency ripple handling (5.0 A at 300 kHz), and a wide operating temperature range of −55°C to 105°C with a rated life of 2000 hours at 105°C.

Key Features

• Core Technology: Conductive polymer solid electrolytic construction provides stable capacitance and reduced ESR compared with traditional liquid electrolytes.
• Electrical Performance: 270 µF capacitance with tolerance −20% to +20% and tanδ (DF) of 0.08 at 20°C, 120 Hz for predictable AC behavior.
• Low ESR & High-Frequency Capability: ESR of 8 mΩ measured at 20°C/100 kHz and rated ripple current of 5.0 A at 300 kHz enable effective high-frequency smoothing and decoupling.
• Ripple Current Handling: Rated ripple current of 500 mA at 120 Hz (low frequency) and 5.0 A at 300 kHz (high frequency), supporting both mains-frequency and switching-power applications.
• Reliability & Endurance: Rated for 2000 hours at 105°C; leakage current specified at 864 µA (20°C, after 2 minutes) to support long-term stability.
• Compact Radial Package: φ8 × 11.5 mm can with 3.5 mm lead spacing (±0.5 mm) and radial lead mounting for through-hole assemblies and easy replacement or prototyping.
• Environmental Compliance & Availability: RoHS compliant and available in bulk/bag packing; listed as mass production status.

Typical Applications

• Power Supply Filtering: Low ESR and high ripple-current capability make the RNU1C271MDN1 well suited for smoothing outputs of switching regulators and bulk filtering in power supplies.
• DC–DC Converter Output Decoupling: High-frequency ripple current rating and low ESR support stable output voltage and reduced noise in converter designs.
• Embedded and Industrial Electronics: Wide operating temperature range (−55°C to 105°C) and long endurance at elevated temperature suit embedded controllers and industrial control electronics requiring reliable energy storage.
• General Purpose Energy Storage: Polarized radial format and compact footprint provide an option for board-level decoupling and local energy buffering in a variety of designs.

Unique Advantages

• Low ESR for Improved Efficiency: 8 mΩ ESR at 100 kHz reduces I²R losses and improves high-frequency performance in power stages and filters.
• High Ripple‑Current Capacity: 5.0 A at 300 kHz supports demanding switching regulator outputs, reducing temperature rise under load.
• Thermal Endurance: Rated life of 2000 hours at 105°C provides predictable aging characteristics for designs exposed to elevated temperatures.
• Compact Through‑Hole Footprint: φ8×11.5 mm can with 3.5 mm lead spacing offers a small, easy-to-place radial solution for board-level power functions.
• Stable Loss Characteristics: tanδ of 0.08 at 20°C/120 Hz supports consistent dissipation factor behavior in AC conditions.
• RoHS Compliant and Production Ready: Environmentally compliant and in mass production for supply-chain confidence.

Why Choose RNU1C271MDN1?

The RNU1C271MDN1 positions itself as a reliable, compact conductive polymer aluminum capacitor for designs that need low ESR, high ripple-current handling, and stable performance across a broad temperature range. Its combination of 270 µF capacitance, 16 V rating, and measured electrical characteristics makes it suitable for power filtering and decoupling in embedded, industrial, and general-purpose electronics.

Engineers and procurement teams will find long-term value in its thermal endurance, predictable leakage and ESR specifications, RoHS compliance, and mass-production availability—supporting repeatable performance and straightforward integration into through-hole assemblies.

Request a quote or contact our sales team to check pricing, availability, and sample support for RNU1C271MDN1.