RKS1J120MCNAFEGS

The RKS1J120MCNAFEGS is a surface-mount conductive polymer aluminum solid electrolytic capacitor from Nichicon's RKS series. It provides 12 µF capacitance at a 63 V rating in a compact SMD can package designed for elevated-temperature and high-ripple applications.

Engineered for SMD power stages and assemblies that require low ESR and sustained performance at high temperature, this part delivers 120 mΩ ESR at 100 kHz, up to 700 mA high-frequency ripple current, and a load life of 3000 hours at 125°C. It ships in embossed carrier taping with moisture-proof packing and is RoHS compliant.

Key Features

• Capacitance & Voltage — 12 µF nominal capacitance with a rated voltage of 63 V and capacitance tolerance of −20% to +20%.
• Low ESR & High‑frequency Performance — ESR of 120 mΩ measured at 20°C/100 kHz, supporting high-frequency decoupling needs.
• Ripple Current Capability — Low-frequency ripple current 70 mA (120 Hz) and high-frequency ripple current 700 mA (300 kHz) for demanding power-filtering applications.
• Thermal Endurance — Rated for operation from −55°C to 125°C with a specified load life of 3000 hours at 125°C.
• Leakage & Loss — Leakage current specified at 100 µA and tangent of loss angle (tan δ) of 0.12 measured at 20°C, 120 Hz.
• Surface-mount Can Package — Radial, can-style SMD package with dimensions φ6.3 × 5.8 mm and recommended land size 6.6 × 6.6 mm.
• Reflow & Packaging — Compatible with lead‑free reflow soldering (peak 260°C per datasheet profile) and supplied in embossed carrier taping / moisture-proof packing for SMT assembly.
• Environmental Compliance — RoHS compliant.

Typical Applications

• Power-supply output filtering — Low ESR and high HF ripple current make this capacitor suitable for smoothing and filtering in compact power supplies and modules.
• DC‑DC converter decoupling — Small SMD can package and strong high‑frequency performance support decoupling at power rails and point-of-load converters.
• High-temperature electronics — Designed for assemblies that require sustained operation at elevated temperatures, with endurance specified at 125°C for 3000 hours.

Unique Advantages

• High ripple-current capability: 700 mA at 300 kHz enables effective handling of switching noise and dynamic load currents in compact designs.
• Validated high-temperature life: 3000-hour endurance at 125°C provides predictable long-term behavior in thermally challenging environments.
• Low high-frequency ESR: 120 mΩ at 100 kHz improves stability and reduces loss in high-speed power circuits.
• Compact SMD can footprint: φ6.3 × 5.8 mm size and 6.6 × 6.6 mm recommended land simplify board layout where space is constrained.
• Assembly-ready packaging: Embossed carrier taping with moisture-proof packing supports automated pick-and-place and reflow processing.
• RoHS compliant and reflow-capable: Lead‑free solderability to 260°C peak per datasheet supports modern Pb‑free manufacturing flows.

Why Choose RKS1J120MCNAFEGS?

The RKS1J120MCNAFEGS combines conductive polymer solid-electrolyte construction with a compact SMD can package to deliver a balance of capacitance, low ESR, and high ripple-current capability at a 63 V rating. Its specified 3000-hour life at 125°C and reflow compatibility make it a practical choice for engineers designing robust power stages and tightly packaged electronic assemblies.

This part is suited for design teams needing predictable thermal endurance, high-frequency filtering performance, and an SMD solution that integrates into automated production with embossed carrier taping and moisture-proof packing.

Request a quote or submit a product inquiry to evaluate RKS1J120MCNAFEGS for your next design.