RNU1E330MDN1

The RNU1E330MDN1 is a conductive polymer solid electrolytic capacitor from Nichicon’s RNU series, configured as a radial lead FPCAP. It delivers a compact 33 µF capacitance at a 25 V rating with a low equivalent series resistance and high ripple current capability.

Designed for general-purpose electronic equipment, this radial-lead capacitor offers performance-oriented electrical characteristics—low ESR, high ripple handling, and wide operating temperature range—to support power filtering and decoupling in compact assemblies.

Key Features

• Conductive polymer solid electrolyte — Solid electrolyte construction for stable capacitance and performance under load.
• Low ESR — 24 mΩ ESR measured at 20°C/100 kHz, supporting improved transient response and reduced dissipation in high-frequency circuits.
• High ripple current capability — Rated ripple current 360 mA at 120 Hz and up to 3.6 A at 300 kHz (frequency coefficient data applies), enabling robust performance under high AC stress.
• Electrical characteristics — 33 µF capacitance with ±20% tolerance, tan δ = 0.12 (measured at 20°C, 120 Hz), and leakage current of 412 µA after 2 minutes at rated voltage.
• Wide temperature and endurance — Operating temperature range from −55°C to +105°C with a rated life of 2000 hours at 105°C.
• Compact radial lead package — Case size φ8 × 11.5 mm, lead spacing 3.5 mm (±0.5 mm), available in bulk or bag packing for through-hole assemblies.
• RoHS compliant — Manufactured in compliance with RoHS directives.

Typical Applications

• Power supply filtering — Low ESR and high ripple current rating make this capacitor suitable for smoothing and filtering in power rails and DC–DC converter outputs.
• High-frequency decoupling — Measured ESR at 100 kHz and ripple performance up to 300 kHz support decoupling in higher-frequency switching circuits.
• General-purpose electronic equipment — Radial-lead form factor and compact φ8×11.5 mm size fit a wide range of consumer and industrial assemblies requiring robust bulk capacitance.

Unique Advantages

• Improved transient performance: Low ESR (24 mΩ at 100 kHz) reduces voltage drop during fast load changes, supporting stable supply rails.
• High AC endurance: Rated ripple current up to 3.6 A at 300 kHz provides headroom for high-frequency switching environments where ripple stress is elevated.
• Temperature resilience: −55°C to +105°C operating range plus 2000 h endurance at 105°C ensures reliable operation across demanding thermal conditions.
• Compact through-hole package: φ8×11.5 mm radial can with 3.5 mm lead spacing simplifies placement for through-hole power designs and retrofit applications.
• Predictable electrical behavior: Specified tan δ (0.12 at 20°C/120 Hz), leakage current (412 µA), and ±20% capacitance tolerance provide clear design parameters for engineers.
• Regulatory compliance: RoHS conformity supports use in regulated product lines.

Why Choose RNU1E330MDN1?

RNU1E330MDN1 combines conductive-polymer construction with low ESR and strong ripple-handling capability in a compact radial-lead can, delivering a balance of performance and form factor suited to general-purpose power and decoupling tasks. Its specified electrical parameters—33 µF at 25 V, 24 mΩ ESR at 100 kHz, and ripple ratings up to 3.6 A at 300 kHz—give engineers measurable metrics to design against.

This part is appropriate for designers seeking a reliable, compact through-hole capacitor for equipment operating across −55°C to +105°C, and for projects that benefit from Nichicon’s RNU series specifications and manufacturing quality. The RoHS compliance and available packing options (bulk / bag) simplify procurement and assembly planning.

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