RKS1C330MCNAFEGS

The RKS1C330MCNAFEGS from Nichicon is a conductive-polymer aluminum solid electrolytic capacitor in an SMD can package, designed for general-purpose surface-mount applications. It delivers 33 µF capacitance at a 16 V rating with polymer electrolyte construction to provide low ESR and high allowable ripple performance.

Key value propositions include low equivalent series resistance (50 mΩ @100 kHz), high-frequency ripple capability (1.0 A at 300 kHz), and extended load life (3,000 hours at 125°C), making it suitable where reliable decoupling and filtering under elevated temperature and ripple conditions are required.

Key Features

• Core Construction Conductive-polymer aluminum solid electrolyte suitable for surface-mount installation.
• Capacitance & Tolerance 33 µF nominal with tolerance of −20% to +20% (measured at 20°C, 120 Hz).
• Voltage Rating Rated for 16 V DC operation.
• Loss Angle (tan δ) tanδ = 0.12 measured at 20°C, 120 Hz, for predictable AC loss behavior.
• Low ESR & Ripple Handling ESR of 50 mΩ at 20°C/100 kHz, low-frequency ripple current 100 mA (120 Hz) and high-frequency ripple current 1.0 A (300 kHz) for effective filtering under dynamic loads.
• Leakage Current Specified leakage current up to 100 µA after standard conditioning.
• Temperature & Endurance Operating temperature −55°C to +125°C with a rated load life of 3,000 hours at 125°C.
• Package & Mounting Surface-mount can-style package (φ6.3 × 5.8 mm) in embossed carrier taping with moisture-proof packing; package case listed as Radial, Can - SMD.
• Assembly Compatibility Compatible with lead-free reflow soldering up to a 260°C peak per the series specifications.
• Regulatory RoHS compliant.

Typical Applications

• Power supply decoupling Low ESR (50 mΩ) and high ripple capability (1.0 A at 300 kHz) make it suitable for local decoupling and smoothing on DC power rails.
• Switching regulator output filtering 33 µF capacitance and robust high-frequency ripple performance support output filtering where stable capacitance under ripple is needed.
• Industrial and embedded electronics Wide temperature range (−55°C to +125°C) and a 3,000-hour life at 125°C address thermal and longevity requirements in compact SMD assemblies.

Unique Advantages

• Low ESR enabling high-frequency performance: 50 mΩ @100 kHz reduces voltage drop and heat generation under AC ripple conditions.
• High allowable ripple current: 1.0 A at 300 kHz (high frequency) and 100 mA at 120 Hz (low frequency) support demanding switching environments.
• Extended high-temperature endurance: Rated for 3,000 hours at 125°C for predictable lifetime in elevated-temperature applications.
• SMD can package in compact footprint: φ6.3 × 5.8 mm package balances capacitance with space-efficient surface-mount mounting.
• Assembly-friendly solder profile: Compatible with lead-free reflow up to 260°C peak, simplifying integration into modern PCB assembly flows.
• Regulatory compliance: RoHS-compliant construction supports environmentally restricted designs.

Why Choose RKS1C330MCNAFEGS?

RKS1C330MCNAFEGS positions itself as a reliable, high-ripple-capability SMD polymer aluminum capacitor for general-purpose electronics that require low ESR, compact size, and extended thermal endurance. Its combination of 33 µF capacitance, 16 V rating, and measured performance characteristics make it suitable for designs that demand stable filtering and decoupling in constrained PCB areas.

This part is a practical choice for engineers specifying components for power management and embedded systems where verified ripple handling, high-temperature life (3,000 hours at 125°C), and surface-mount assembly compatibility are priorities. Backed by Nichicon’s series specifications, it provides a verifiable, application-focused option for robust board-level capacitance.

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