RKS1D181MCNAJJGS

The RKS1D181MCNAJJGS is a Nichicon RKS series surface-mount conductive polymer aluminum solid electrolytic capacitor rated at 180 µF and 20 V. It pairs high capacitance with low equivalent series resistance and tailored ripple capability for general-purpose power and decoupling applications.

Designed for demanding thermal environments, this part offers long-life endurance (3000 hours at 125°C), a wide operating temperature range (−55°C to 125°C), and packaging optimized for automated assembly (embossed carrier taping with moisture-proof packing).

Key Features

• Capacitance and Tolerance — 180 µF nominal capacitance with tolerance of −20% to +20% at 20°C, 120 Hz, suitable for bulk smoothing and decoupling.
• Rated Voltage — 20 V DC rating for low-voltage power rails and point-of-load applications.
• Low Loss and High-Frequency Performance — tan δ of 0.12 measured at 20°C, 120 Hz and an ESR of 20 mΩ at 100 kHz to support stable performance under AC ripple.
• Ripple Current Capability — Low-frequency ripple current 200 mA (120 Hz) and high-frequency ripple current 2 A (300 kHz) for both mains-frequency smoothing and high-frequency switching environments.
• Leakage and Reliability — Specified leakage current of 180 µA and a rated endurance of 3000 hours at 125°C for extended service life in elevated-temperature systems.
• Robust Temperature Range — Operates from −55°C to 125°C to accommodate industrial and embedded thermal requirements.
• Surface-Mount Radial Can Package — φ10 × 10 mm can-style SMD package for compact PCB layouts; supplied in embossed carrier taping and moisture-proof packing for automated handling.
• RoHS Compliant — Conforms to RoHS requirements for regulatory compliance in commercial and industrial products.
• Reflow Compatibility — Compatible with lead-free reflow soldering peak temperature up to 260°C as described in the series specifications.

Typical Applications

• Power supply filtering and bulk decoupling — Stabilizes low-voltage rails and smooths output of DC–DC converters where 180 µF and low ESR reduce voltage ripple.
• Switching regulator output capacitors — Handles high-frequency ripple currents (2 A at 300 kHz) in switching power stages to improve transient response.
• Industrial and embedded electronics — Suited for systems that require wide temperature operation (−55°C to 125°C) and long endurance at elevated temperatures.
• General-purpose smoothing in compact systems — The φ10 × 10 mm SMD can offers a compact solution for space-constrained boards needing reliable capacitance.

Unique Advantages

• Low ESR for improved ripple handling: 20 mΩ ESR at 100 kHz combined with 2 A high-frequency ripple rating supports efficient energy transfer and lower dissipation in power circuits.
• High-temperature endurance: 3000 hours life at 125°C provides predictable long-term performance in thermally demanding environments.
• Conductive polymer chemistry: Solid polymer electrolyte delivers stable electrical characteristics and low loss compared with conventional electrolytes.
• Compact SMD can package: φ10 × 10 mm radial can footprint balances high capacitance with a small PCB area and is supplied for automated placement.
• Assembly-friendly packaging: Embossed carrier taping and moisture-proof packing streamline handling and storage for surface-mount production lines.
• Regulatory readiness: RoHS compliance helps simplify inclusion in commercial and industrial product lines subject to restricted-substance rules.

Why Choose RKS1D181MCNAJJGS?

RKS1D181MCNAJJGS positions itself as a durable, low-ESR surface-mount capacitor for designers needing high capacitance in a compact package with proven high-temperature endurance. Its combination of 180 µF capacitance, 20 V rating, and high-frequency ripple capability supports reliable performance in power delivery and decoupling roles.

This part is well suited to engineers building industrial, embedded, or general-purpose electronic systems that demand stable capacitance, low losses, and extended life at elevated temperatures while maintaining compatibility with surface-mount assembly processes.

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