RKS1V221MCNAJJGS

The RKS1V221MCNAJJGS from Nichicon is a surface-mount conductive polymer aluminum solid electrolytic capacitor specified at 220 µF and 35 V. It is designed for general-purpose power applications that require high capacitance in a compact SMD can package.

Key value propositions include low equivalent series resistance (ESR) for efficient high-frequency performance, rated ripple-current capability, and long endurance with a 3000‑hour life at 125°C—making it suitable where stability and reliability under elevated temperatures are required.

Key Features

• Capacitance & Voltage: 220 µF rated capacitance with a 35 V rated voltage and capacitance tolerance of -20% to +20% at 20°C, 120 Hz.
• Conductive Polymer Electrolyte: Solid conductive polymer construction for stable electrical characteristics and low loss (tanδ = 0.12 at 20°C, 120 Hz).
• Low ESR & High Frequency Performance: ESR specified at 20 mΩ measured at 20°C, 100 kHz, enabling effective high-frequency filtering and improved ripple handling.
• Ripple Current Ratings: Low-frequency ripple current of 200 mA at 120 Hz and high-frequency ripple current of 2 A at 300 kHz, supporting both bulk and high-frequency decoupling roles.
• Leakage Current: Leakage current specified at 385 µA (measured per datasheet conditions), allowing predictable bias behavior after voltage application.
• Robust Thermal Endurance: Rated for operation from -55°C to 125°C with a load life of 3000 hours at 125°C under rated voltage.
• Compact SMD Can Package: Radial can SMD package with size indicated as φ10×10L (L:1 × D:1 cm) and supplied in embossed carrier taping with moisture-proof packing for automated assembly.
• RoHS Compliance: The series is listed as compliant to the RoHS directive (2011/65/EU, (EU)2015/863) in the datasheet.

Typical Applications

• Power Supply Filtering: Bulk smoothing and output filtering in DC‑DC converters where high capacitance and low ESR improve voltage stability.
• Decoupling for Embedded Systems: Local decoupling on high-density boards that require compact SMD capacitors with strong high-frequency performance.
• Industrial Electronics: Power conditioning in industrial control and instrumentation environments that demand long endurance at elevated temperatures.

Unique Advantages

• Predictable High‑Temperature Endurance: 3000 hours rated life at 125°C gives design confidence for sustained elevated-temperature operation.
• High Ripple Handling: Combined low ESR (20 mΩ @100 kHz) and 2 A high-frequency ripple rating support demanding switching power applications.
• Solid Polymer Reliability: Conductive polymer electrolyte delivers low loss (tanδ = 0.12) and stable electrical characteristics across frequency and temperature ranges.
• Assembly-Ready Packaging: Supplied in embossed carrier taping with moisture-proof packing to support automated SMD placement and storage requirements.
• Wide Operating Temperature Range: Specified from -55°C to 125°C for versatility across a broad range of environmental conditions.

Why Choose RKS1V221MCNAJJGS?

RKS1V221MCNAJJGS is positioned for designers who need a compact, high-capacitance SMD solution with low ESR and proven endurance at elevated temperatures. Its conductive polymer construction and high ripple-current capability make it a practical choice for power supply filtering and decoupling in general-purpose and industrial electronics.

Manufactured by Nichicon and supplied in assembly-friendly packaging, this part balances electrical performance and thermal reliability for applications that require sustained operation and predictable electrical behavior over time.

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