RKS1D121MCNAJJGS

The RKS1D121MCNAJJGS is a surface-mount conductive polymer aluminum solid electrolytic capacitor with 120 µF capacitance and a 20 V rated voltage. It delivers low ESR and high allowable ripple current in a compact φ10 × 10 mm SMD can package for general-purpose power-decoupling and filtering tasks.

Designed for demanding thermal environments, this part is specified for operation from −55°C to +125°C with a load life of 3000 hours at 125°C, and is supplied in embossed carrier taping with moisture-proof packing for SMT assembly.

Key Features

• Capacitance & Tolerance — 120 µF nominal capacitance with ±20% tolerance at 20°C, 120 Hz, suitable for bulk decoupling and energy storage in 20 V systems.
• Low Loss (tan δ) — tanδ (DF) = 0.12 measured at 20°C, 120 Hz, supporting stable AC performance in filtering applications.
• Low ESR & High-Frequency Performance — ESR of 20 mΩ at 20°C/100 kHz and a high-frequency ripple current rating of 2 A (at 300 kHz), enabling efficient high-frequency decoupling near switching nodes.
• Ripple Current Capability — 200 mA allowable ripple at 120 Hz and 2 A at 300 kHz, matching both low-frequency smoothing and high-frequency switching requirements.
• Leakage Current — Specified leakage current of 120 µA, consistent with conductive polymer solid electrolyte behavior for reliable standby and bias performance.
• Extended Endurance — Load life: 3000 hours at 125°C with specified limits for capacitance change, tanδ and ESR, supporting longevity in elevated-temperature applications.
• Package & Mounting — Surface-mount radial can (φ10 × 10 mm) designed for SMT assembly; shipped in embossed carrier taping with moisture-proof packing.
• Manufacturing Compatibility — Series-level compatibility with lead-free reflow soldering conditions up to a 260°C peak, suitable for modern SMT processes.
• Compliance & Availability — RoHS compliant and listed as Mass Production, easing procurement and regulatory acceptance.

Typical Applications

• Power supply decoupling — Bulk and local decoupling in 20 V rails where 120 µF and low ESR (20 mΩ at 100 kHz) help stabilize voltage during load transients.
• Switching regulator output filtering — High-frequency ripple current rating (2 A at 300 kHz) and low tanδ make this capacitor suitable for smoothing outputs of switching power supplies.
• Industrial and telecom electronics — Extended operating range (−55°C to +125°C) and 3000 h life at 125°C support applications exposed to elevated ambient temperatures.

Unique Advantages

• Low ESR for efficient decoupling — 20 mΩ ESR at 100 kHz reduces power loss and voltage drop at high switching frequencies, improving regulator stability.
• High ripple tolerance — 2 A high-frequency ripple rating and 200 mA at 120 Hz allow the same part to serve multiple filtering roles across frequency bands.
• Thermal endurance — Rated life of 3000 hours at 125°C provides predictable aging and planning for long-term deployments in hot environments.
• SMT-ready packaging — φ10 × 10 mm SMD can in embossed carrier taping with moisture-proof packing simplifies automated assembly and handling.
• Lead-free process compatibility — Conforms to lead-free reflow profiles up to 260°C at the series level, aligning with modern PCB assembly workflows.
• Regulatory compliance — RoHS compliant, supporting designs with restricted substance requirements.

Why Choose RKS1D121MCNAJJGS?

RKS1D121MCNAJJGS combines conductive polymer aluminum solid electrolyte construction with low ESR, high ripple current capability, and an extended temperature range to deliver reliable power-conditioning in compact SMD form. Its 120 µF/20 V rating, measured tanδ, and ESR specifications make it well-suited for engineers designing switching regulators, decoupling networks, and thermal-challenged systems.

With mass-production availability, embossed carrier taping, and moisture-proof packing, this capacitor supports streamlined procurement and assembly for volume manufacturing while providing predictable performance over long-term elevated-temperature operation.

If you would like pricing, lead-time or a formal quote for RKS1D121MCNAJJGS, please submit an inquiry or request a quote through the supplier channel for prompt assistance.