RKS1C121MCNAFGGS

The RKS1C121MCNAFGGS is a surface‑mount conductive polymer aluminum electrolytic capacitor in Nichicon’s RKS series. It delivers 120 µF capacitance at a 16 V rating with a compact φ6.3 × 7.7 mm can‑style SMD package for general‑purpose electronic applications.

Designed for high allowable ripple current and low equivalent series resistance, this part targets power decoupling and high‑frequency filtering needs while offering a long endurance life of 3000 hours at 125°C and RoHS compliance.

Key Features

• Core Technology Conductive polymer aluminum solid electrolytic construction provides stable electrical performance suited to high‑frequency operation.
• Capacitance & Tolerance 120 µF nominal capacitance with tolerance of −20% to +20% (measured at 20°C, 120 Hz).
• Voltage Rating Rated for 16 V operation.
• Low ESR ESR of 30 mΩ measured at 20°C and 100 kHz, enabling effective high‑frequency decoupling and reduced power loss.
• High Ripple Current Low‑frequency ripple current 150 mA (120 Hz) and high‑frequency ripple current 1.5 A (300 kHz) for demanding AC conditions.
• Leakage Current Leakage current specified at 100 µA (after standard conditioning), supporting predictable bias behavior.
• Temperature & Endurance Operating temperature range from −55°C to +125°C with load life rated 3000 hours at 125°C under rated voltage.
• Package & Assembly φ6.3 × 7.7 mm radial can SMD package supplied in embossed carrier taping with moisture‑proof packing; compatible with reflow soldering peak 260°C as specified in the series datasheet.
• Regulatory RoHS compliant.

Typical Applications

• Power supply decoupling — Provides bulk and high‑frequency decoupling where stable capacitance and low ESR at 100 kHz are required.
• High‑frequency filtering — Suited to filter networks that require low loss and high ripple handling in compact SMD form factors.
• General‑purpose electronics — Applicable across a range of consumer and industrial designs that need reliable SMD capacitance with endurance to 125°C.

Unique Advantages

• High ripple capability: Rated for 1.5 A at high frequency (300 kHz) and 150 mA at 120 Hz, enabling use in applications with significant AC stress.
• Low ESR at 100 kHz: 30 mΩ ESR reduces voltage drop and heat generation during high‑frequency operation, improving power integrity.
• Extended high‑temperature life: 3000 hours at 125°C provides design margin for elevated ambient or localized heating conditions.
• Compact SMD can package: φ6.3 × 7.7 mm footprint provides a small board area for high capacitance, aiding density in compact designs.
• Predictable leakage behavior: 100 µA leakage specification supports controlled bias conditions in precision applications.
• RoHS compliant and assembly ready: Supplied in embossed carrier taping with moisture‑proof packing and compatible with the series’ reflow profile for SMT assembly.

Why Choose RKS1C121MCNAFGGS?

The RKS1C121MCNAFGGS positions itself as a robust, SMD conductive polymer aluminum capacitor for designs that need a balance of high capacitance, low ESR, and elevated temperature endurance. Its combination of 120 µF at 16 V, high allowable ripple currents, and a 3000‑hour life at 125°C makes it suitable for engineers addressing decoupling and filtering in compact, thermally demanding assemblies.

This part is well suited to design teams and procurement seeking a reliable, RoHS‑compliant SMD capacitor with verifiable high‑frequency performance and long‑term stability supported by Nichicon’s RKS series specifications.

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