RNU1E471MDN1

The RNU1E471MDN1 is a conductive polymer aluminum solid electrolytic capacitor in a radial lead can designed for general-purpose electronic applications. It delivers high capacitance (470 µF) at a 25 V rating with low equivalent series resistance (ESR) and substantial ripple-current handling for demanding power environments.

Built for reliability at elevated temperatures, the part supports long load life testing at 105°C (2000 / 5000 hours per series specifications) and is RoHS compliant, making it suitable for designs that require durable bulk capacitance and stable performance over time.

Key Features

• Capacitance & Voltage — 470 µF nominal capacitance with a rated voltage of 25 V; capacitance tolerance ±20% (at 120 Hz, 20°C).
• Low ESR — ESR specified at 14 mΩ measured at 100 kHz, 20°C, supporting efficient power delivery and reduced losses.
• High Ripple Current — Rated ripple current capability listed as 5 A at 300 kHz and 500 mA at 120 Hz (frequency-dependent coefficients available in series datasheet).
• High-Temperature Endurance — Load life specified at 2000 / 5000 hours at 105°C under rated voltage conditions, with defined limits on capacitance change, tan δ, ESR, and leakage.
• Package & Mounting — Radial lead, can-style package with lead spacing of 5 mm and compact body size (1.25 cm length × 1.00 cm diameter).
• Electrical Polarity — Polarized capacitor suitable for circuits that use electrolytic polar capacitors.
• Operating Temperature — Specified operating range from −55°C to +105°C for reliable performance across common industrial temperatures.
• RoHS Compliance — Conforms to the RoHS directive (2011/65/EU, (EU) 2015/863).

Typical Applications

• General-purpose power systems — Provides bulk energy storage and smoothing for circuits requiring 470 µF at 25 V with low ESR.
• Power filtering and decoupling — Low ESR and rated ripple-current capability help reduce voltage ripple in power rails where stable DC is required.
• Industrial and embedded electronics — Radial lead can and wide temperature range support deployment in compact, service-oriented assemblies.

Unique Advantages

• High capacitance in a compact can: 470 µF in a 1.25 cm × 1.00 cm package offers significant bulk storage where board space is limited.
• Low ESR for improved efficiency: 14 mΩ (100 kHz) reduces I²R losses and supports effective ripple handling in high-frequency environments.
• Strong ripple-current capability: Rated ripple currents up to 5 A at 300 kHz ensure reliable thermal and electrical performance under dynamic load.
• Elevated-temperature durability: Load life specified at 2000 / 5000 hours at 105°C demonstrates endurance for prolonged operation at high ambient temperatures.
• Radial lead convenience: Through-hole radial lead mounting simplifies placement and replacement in conventional PCBs and assemblies.
• Regulatory compliance: RoHS conformity supports use in products targeting global markets with restricted substance requirements.

Why Choose RNU1E471MDN1?

The RNU1E471MDN1 pairs conductive polymer aluminum construction with a compact radial-can package to deliver 470 µF at 25 V with low ESR and strong ripple-current capability. Its specified endurance at 105°C and RoHS compliance make it appropriate for designers seeking dependable bulk capacitance in general-purpose power and embedded applications.

This part is suited to engineers who need a verified combination of capacitance, low-loss performance, and thermal reliability in a through-hole form factor, backed by the specifications published for the Nichicon RNU series.

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