RNU1C331MDN1

The RNU1C331MDN1 is a conductive polymer aluminum solid electrolytic capacitor in a radial-lead can (φ8×11.5 mm). It delivers 330 µF capacitance at a 16 V rating with ±20% tolerance and is designed for general-purpose electronic designs.

Key performance attributes include low ESR, high allowable ripple current, and a wide operating temperature range, providing a compact, through-hole option where low-loss filtering and stable operation at elevated temperatures are required.

Key Features

• Capacitance and Voltage — 330 µF rated capacitance at 16 V with tolerance of -20% to +20%.
• Conductive Polymer Electrolyte — Solid polymer construction for low-loss performance; tanδ (DF) specified at 0.08 measured at 20°C, 120 Hz (16 V).
• Low ESR — ESR of 8 mΩ measured at 20°C/100 kHz, minimizing series losses in high-frequency circuits.
• High Ripple Current Capability — Rated ripple current of 610 mA at 120 Hz and 6.1 A at 300 kHz, enabling robust handling of AC ripple across frequency ranges.
• Temperature and Endurance — Operating range from −55°C to +105°C with a rated endurance of 2000 hours at 105°C.
• Leakage Current — Specified leakage current of 1056 µA (measured after 2 minutes' application of rated voltage at 20°C per datasheet conditions).
• Radial Through‑Hole Package — φ8×11.5 mm can, 3.5 mm lead spacing (±0.5 mm) designed for radial-lead mounting; available in bulk (no terminal forming) or bag packing.
• Regulatory — RoHS compliant.

Typical Applications

• General-purpose electronic designs — A polarized radial-lead capacitor for through-hole boards where a 330 µF/16 V component is specified.
• High-frequency ripple environments — Low ESR (8 mΩ @100 kHz) and 6.1 A ripple rating at 300 kHz support circuits with significant high-frequency ripple currents.
• Elevated-temperature operation — Rated for −55°C to +105°C with 2000 h endurance at 105°C, suitable for applications requiring extended thermal tolerance.

Unique Advantages

• Low-loss performance: 8 mΩ ESR at 100 kHz reduces dissipation and improves efficiency in high-frequency applications.
• High ripple-current handling: 610 mA at 120 Hz and 6.1 A at 300 kHz provide margin for AC stress and switching-related ripple.
• Solid polymer reliability: Specified tanδ of 0.08 and solid electrolyte construction contribute to stable electrical characteristics.
• Wide temperature tolerance: −55°C to +105°C rating supports designs exposed to a broad range of operating temperatures.
• Compact radial form factor: φ8×11.5 mm can and 3.5 mm lead spacing deliver a small footprint for through-hole implementations.
• Production-ready packaging: Available in bulk (no terminal forming) or bag packing and listed as mass production status.

Why Choose RNU1C331MDN1?

The RNU1C331MDN1 combines conductive polymer electrolyte construction with a low ESR (8 mΩ @100 kHz) and strong ripple-current capability (6.1 A at 300 kHz), offering reliable, low-loss performance in a compact radial-lead package. Its −55°C to +105°C operating range and 2000-hour endurance at 105°C make it suitable for designs that require sustained performance under elevated temperatures.

This part is appropriate for engineers specifying a polarized, through‑hole capacitor with clear, measurable performance parameters—capacitance, ESR, ripple current, leakage current and endurance—backed by RoHS compliance and standard production packaging options.

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