RKS1C121MCNAHJGS

The RKS1C121MCNAHJGS is a surface-mount conductive polymer aluminum solid electrolytic capacitor optimized for high-frequency and high-ripple current applications. With a rated capacitance of 120 µF at 16 V and a low ESR architecture, it delivers stable decoupling and bulk energy storage across a wide temperature range.

Designed for general-purpose electronics, the RKS1C121MCNAHJGS combines low loss (tanδ = 0.12 at 20°C/120 Hz), a compact φ8 × 10 mm can-style SMD package, and a long load life of 3000 hours at 125°C, making it suitable for demanding board-level power-conditioning roles.

Key Features

• Capacitance & Voltage — 120 µF nominal capacitance rated at 16 V for board-level energy storage and decoupling.
• Low Loss & Low ESR — tanδ of 0.12 (20°C, 120 Hz) and ESR of 25 mΩ measured at 20°C/100 kHz to support efficient high-frequency performance.
• High Ripple Capability — Low-frequency ripple current of 170 mA (120 Hz) and high-frequency ripple current of 1.7 A (300 kHz) for demanding switching environments.
• Long Endurance — Rated load life of 3000 hours at 125°C to support robust thermal stress operation.
• Wide Temperature Range — Operational from −55°C to +125°C to accommodate a broad range of operating environments.
• SMD Can Package & Reflow Compatibility — φ8 × 10 mm radial can SMD package supplied in embossed carrier taping with moisture-proof packing; compatible with lead-free reflow soldering (260°C peak correspondence per datasheet guidance).
• Leakage Current — Specified leakage current not to exceed 100 µA after conditioning, supporting predictable bias behavior.
• RoHS Compliant — Meets RoHS directive requirements.

Typical Applications

• Power supply decoupling — Low ESR and high allowable ripple current make this capacitor suitable for local decoupling on switching power rails.
• DC‑DC converter output filtering — High-frequency ripple capability and stable capacitance support smoothing and transient response for regulator outputs.
• Embedded and board-level power conditioning — Compact φ8 × 10 mm SMD can package fits space-constrained PCBs that require reliable bulk storage and filtering.

Unique Advantages

• High ripple tolerance: 1.7 A at 300 kHz and 170 mA at 120 Hz enable robust handling of switching currents and long-term ripple stress.
• Low ESR for improved efficiency: 25 mΩ at 100 kHz reduces power loss and heat generation in high-frequency circuits.
• Extended high-temperature life: 3000-hour endurance at 125°C supports designs exposed to elevated operating temperatures.
• Predictable leakage behavior: Leakage current specified at 100 µA ensures consistent bias characteristics after conditioning.
• SMD form factor with reflow compatibility: φ8 × 10 mm can in embossed carrier taping simplifies automated assembly and is compatible with lead-free reflow profiles as specified.
• Broad operating range: −55°C to +125°C supports use across varied environmental conditions.

Why Choose RKS1C121MCNAHJGS?

The RKS1C121MCNAHJGS delivers a practical combination of capacitance, low ESR, and high ripple capability in a compact surface-mount can package. Its conductive polymer aluminum construction and 3000-hour life at 125°C make it a reliable choice for engineers who need stable decoupling and bulk storage in thermally demanding or high-frequency switching environments.

Ideal for designers of power management circuits, DC-DC converters, and embedded systems requiring predictable electrical behavior and automated assembly compatibility, this part provides long-term value through durability, defined leakage performance, and RoHS compliance.

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