RKS1D121MCNAHGGS

The RKS1D121MCNAHGGS is a surface-mount conductive polymer aluminum solid electrolytic capacitor in Nichicon’s RKS series, specified at 120 µF and 20 V. It combines low equivalent series resistance and high allowable ripple current with a compact radial can SMD package for space-constrained board designs.

Designed for demanding thermal and ripple environments, this part offers a wide operating temperature range from −55°C to 125°C and a rated load life of 3000 hours at 125°C, delivering predictable performance for assemblies exposed to elevated temperatures and sustained electrical stress.

Key Features

• Capacitance & Tolerance — 120 µF nominal capacitance with tolerance of −20% to +20% (measured at 20°C, 120 Hz).
• Rated Voltage — 20 V rated voltage suitable for common low-voltage power rails.
• Low ESR & High‑Frequency Performance — ESR of 30 mΩ measured at 100 kHz and tanδ of 0.12 (20°C, 120 Hz) for efficient high-frequency decoupling.
• High Allowable Ripple Current — Low-frequency ripple current 160 mA (120 Hz) and high-frequency ripple capability 1.6 A (300 kHz) to support power stage filtering.
• Leakage Current — Specified leakage current of 120 µA for predictable standby and bias behavior.
• Thermal Endurance — Operating temperature range of −55°C to 125°C with a rated load life of 3000 hours at 125°C for long-term reliability in hot environments.
• Package & Assembly — φ8 × 7.7 mm radial can in an SMD-compatible form factor; supplied in embossed carrier taping and moisture-proof packing and compatible with lead-free reflow (peak 260°C per datasheet conditions).
• RoHS Compliant — Meets RoHS requirements for restricted substances.

Typical Applications

• Power rail decoupling — Compact SMD filtering where low ESR and high ripple tolerance reduce voltage ripple on local power rails.
• DC–DC converters — Bulk and output smoothing in converter circuits that require high-frequency ripple handling and stable impedance.
• High-temperature embedded modules — Designs operating up to 125°C that need extended load life and predictable electrical aging.

Unique Advantages

• High ripple capability: 1.6 A at 300 kHz and 160 mA at 120 Hz enable use directly on demanding power loops without excessive heating.
• Low ESR for improved filtering: 30 mΩ ESR at 100 kHz supports lower output ripple and tighter regulation across switching frequencies.
• Long high‑temperature life: 3000 hours at 125°C provides quantified endurance for designs exposed to elevated ambient or component temperatures.
• Reflow-compatible SMD form factor: φ8×7.7 mm radial can with embossed carrier taping supports automated assembly and moisture-safe handling.
• Predictable dissipation and leakage: tanδ 0.12 and 120 µA leakage current offer clear electrical parameters for thermal and power budgeting.

Why Choose RKS1D121MCNAHGGS?

RKS1D121MCNAHGGS is positioned for designers who need a compact, surface-mount conductive polymer aluminum capacitor with low ESR, high ripple tolerance, and verified endurance at elevated temperatures. Its combination of 120 µF capacitance, 20 V rating, and a 3000‑hour life at 125°C makes it suitable for robust power management and filtering tasks in space-constrained assemblies.

Choose this part when predictable high‑frequency performance, controlled leakage and dissipation, and reflow-compatible SMD packaging are priorities for reliable, repeatable production and long-term field performance.

Request a quote or submit an inquiry for pricing and availability to include RKS1D121MCNAHGGS in your next design.