RKS1V121MCNAHJGS

The RKS1V121MCNAHJGS from Nichicon is a surface‑mount conductive polymer aluminum electrolytic capacitor offering 120 µF capacitance at a 35 V rating. It is part of the RKS series engineered for general‑purpose power decoupling and filtering where low ESR and high ripple handling are important.

Designed for elevated reliability, the device delivers a wide operating temperature range from −55 °C to 125 °C and a rated load life of 3000 hours at 125 °C, making it suitable for demanding power management and industrial electronic applications.

Key Features

• Capacitance & tolerance — 120 µF nominal with tolerance −20% to +20% (measured at 120 Hz, 20 °C), suitable for bulk decoupling and smoothing.
• Low loss (tan δ) — tanδ = 0.12 at 20 °C, 120 Hz for predictable damping and AC performance in filter networks.
• Low ESR & high frequency performance — ESR of 27 mΩ measured at 20 °C / 100 kHz, supporting efficient high‑frequency decoupling.
• High ripple current capability — Low‑frequency ripple current 160 mA (120 Hz) and high‑frequency ripple current 1.6 A (specified at 300 kHz) for robust handling of switching currents.
• Leakage current — 210 µA specified leakage current after voltage application, enabling predictable standby behavior.
• Reliability & endurance — Rated load life of 3000 hours at 125 °C; endurance and shelf‑life characteristics specified in the RKS series datasheet.
• Package & mounting — Compact φ8 × 10 L can in an SMD radial can format for surface‑mount assembly; supplied in embossed carrier taping with moisture‑proof packing for automated placement.
• Assembly compatibility & compliance — SMD type designed for lead‑free reflow soldering (260 °C peak compatibility) and noted compliance with RoHS in the RKS series documentation.

Typical Applications

• Power supply filtering — Bulk and output filtering on DC‑DC converters where low ESR and high ripple current reduce voltage ripple and improve regulator stability.
• Power management modules — Local decoupling on power distribution and regulation boards to support transient currents from switching devices.
• Industrial electronics — Filtering and energy storage in systems requiring extended temperature range (−55 °C to 125 °C) and long operational life.

Unique Advantages

• Low ESR for efficient filtering: 27 mΩ at 100 kHz lowers loss and helps maintain tight voltage regulation under switching conditions.
• High ripple handling: Rated for 1.6 A at high frequency and 160 mA at low frequency, enabling reliable operation with modern switching converters.
• Wide temperature and long life: −55 °C to 125 °C operating range with a 3000‑hour life rating at 125 °C for extended durability in harsh environments.
• Compact SMD can package: φ8 × 10 mm can in embossed tape and moisture‑proof packing supports automated surface‑mount assembly and streamlined BOM integration.
• Stable dielectric behavior: Specified tanδ of 0.12 (20 °C, 120 Hz) and controlled leakage current help ensure predictable performance in filter and decoupling networks.
• Assembly and environmental compliance: Designed for lead‑free reflow (260 °C peak) and indicated RoHS compliance in the series documentation to support modern manufacturing processes.

Why Choose RKS1V121MCNAHJGS?

The RKS1V121MCNAHJGS offers a balanced combination of capacitance, low ESR and high ripple capability in a compact surface‑mount can, backed by a 3000‑hour life rating at 125 °C. These attributes make it a practical choice for engineers designing power supplies, regulator outputs, and industrial electronics that demand reliable filtering under elevated temperature and switching conditions.

Manufactured by Nichicon as part of the RKS series, this part is positioned for designs that require measurable performance (ESR, ripple current, leakage) and predictable long‑term behavior while supporting automated SMD assembly and lead‑free processes.

Request a quote or contact our sales team with the part number RKS1V121MCNAHJGS to discuss availability, lead times, and volume pricing.