RKS1C681MCNAJJGS

The RKS1C681MCNAJJGS is a surface-mount conductive polymer aluminum electrolytic capacitor from Nichicon's RKS series. It delivers 680 µF capacitance at a 16 V rating in a compact φ10 × 10 mm SMD radial-can package.

Designed for general-purpose electronic designs, this part combines high capacitance, low ESR, and elevated temperature endurance to support power decoupling and smoothing requirements in space-constrained assemblies.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance at a 16 V rated voltage with capacitance tolerance of ±20% (−20% to +20%).
• Low ESR & High Ripple Handling — ESR of 20 mΩ measured at 20°C/100 kHz and high-frequency ripple current rating of 2.1 A (300 kHz), plus low-frequency ripple current of 210 mA (120 Hz).
• Temperature Range & Endurance — Operating range −55°C to +125°C with a rated load life of 3000 hours at 125°C.
• Leakage & Loss — Specified leakage current of 544 µA and tan δ (loss tangent) of 0.12 measured at 20°C, 120 Hz.
• Package & Mounting — Surface-mount radial can (φ10 × 10 L) designed for SMD assembly; supplied in embossed carrier taping with moisture-proof packing.
• Assembly Compatibility — Series-level reflow guidance supports lead-free reflow soldering with peak temperatures up to 260°C (per series datasheet).
• Regulatory — RoHS compliant.

Typical Applications

• General-purpose electronic equipment — Appropriate where a 680 µF, 16 V SMD capacitor is required for power management in compact assemblies.
• PCB power rails — Surface-mount radial-can form factor for designs specifying high capacitance with low ESR on printed circuit boards.
• High-temperature environments — Suitable for designs that require operation up to 125°C and long-term endurance (3000 h at 125°C).

Unique Advantages

• High capacitance in a compact SMD can — 680 µF in a φ10 × 10 mm package enables large capacitance without a large board footprint.
• Low ESR for improved power performance — 20 mΩ ESR at 100 kHz reduces losses and supports higher ripple currents in power circuits.
• Robust thermal endurance — 3000-hour rated life at 125°C offers extended reliability in demanding thermal conditions.
• Clear ripple specifications — Specified low- and high-frequency ripple current ratings (210 mA @120 Hz and 2.1 A @300 kHz) help designers size capacitors for real operating conditions.
• Assembly-ready packaging — Embossed carrier taping and moisture-proof packing streamline automated SMD placement and storage.
• RoHS compliance — Conforms to RoHS requirements for restriction of hazardous substances.

Why Choose RKS1C681MCNAJJGS?

RKS1C681MCNAJJGS positions itself as a practical solution for engineers needing a high-capacitance, low-ESR surface-mount capacitor with long thermal endurance. Its combination of 680 µF/16 V rating, 20 mΩ ESR, specified ripple currents, and 3000-hour life at 125°C makes it well suited to compact power designs that demand reliability over extended high-temperature operation.

This part is appropriate for design teams and procurement looking to standardize on a robust, assembly-ready SMD aluminum conductive polymer capacitor for general-purpose power decoupling and smoothing applications.

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