RNU1A100MCSASQ

The RNU1A100MCSASQ is a Nichicon RNU series conductive-polymer aluminum solid electrolytic capacitor in a compact radial-lead can. It delivers 10 µF capacitance at 10 V with low ESR and high ripple-current capability for general-purpose electronic designs.

Designed for space-constrained assemblies, the part combines polymer electrolyte performance with a small φ4×5 mm case, a wide operating temperature range of −55°C to 105°C, and a rated endurance of 5000 hours at 105°C.

Key Features

• Core Electrical Performance — 10 µF capacitance at 10 V with ±20% tolerance and polarization for DC filtering and energy storage in compact circuits.
• Low Loss / Low ESR — tanδ = 0.12 (measured at 20°C, 120 Hz, 10 V) and ESR = 220 mΩ (20°C / 100 kHz), supporting efficient high-frequency decoupling and reduced dissipation.
• High Ripple Current Capability — Rated ripple currents of 70 mA at 120 Hz and 700 mA at higher frequencies provide robust performance under AC ripple stress.
• Reliability & Endurance — Life rating of 5000 hours at 105°C under rated voltage to support long-term operation in elevated-temperature environments.
• Compact Radial Package — Small φ4×5 mm can with 1.5 mm lead spacing (±0.5 mm) and radial lead mounting for through-hole assemblies and ease of manual or automated insertion.
• Leakage Current — Typical leakage current rated at 300 µA (after 2 minutes at 20°C), enabling predictable standby and bias behavior.
• Packaging & Compliance — Available in bulk or bag packing (no terminal forming); RoHS compliant and in mass production.

Typical Applications

• General-purpose power decoupling — Provides local energy storage and noise suppression in compact PCB areas where a 10 µF, 10 V polarized capacitor is required.
• High-frequency filtering — Low ESR (220 mΩ at 100 kHz) and defined tanδ support high-frequency decoupling and filter stages.
• Ripple management in power rails — Rated ripple currents (70 mA @120 Hz, 700 mA at higher frequencies) help control AC ripple in small power modules.

Unique Advantages

• Compact footprint, measurable performance — φ4×5 mm case and 1.5 mm lead spacing enable designs with tight real estate while providing quantifiable ESR and ripple specs.
• Predictable thermal endurance — 5000-hour rating at 105°C gives designers a clear durability metric for elevated-temperature applications.
• Controlled leakage behavior — Specified leakage current (300 µA) after standard conditioning supports predictable bias and standby characteristics.
• Polymer electrolyte benefits — Low tanδ and low ESR at relevant test frequencies reduce power loss and heating under AC conditions.
• Simple procurement and handling — Offered in bulk or bag packing for flexible assembly workflows and available in mass production.

Why Choose RNU1A100MCSASQ?

The RNU1A100MCSASQ positions itself as a compact, reliable conductive-polymer aluminum electrolytic capacitor for general-purpose electronic designs that demand low ESR, defined ripple capability, and endurance at elevated temperatures. Its small φ4×5 mm radial can and 1.5 mm lead spacing make it suitable for tight PCB layouts without sacrificing measurable electrical performance.

Engineers designing power-supply decoupling, high-frequency filtering, or ripple-management circuits will find clear, verifiable specifications—capacitance, ESR, tanδ, leakage, ripple currents, and 5000-hour endurance at 105°C—to guide selection and long-term component planning.

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