RKS1E181MCNAHHGS

The RKS1E181MCNAHHGS from Nichicon is a conductive-polymer aluminum solid electrolytic capacitor in a compact surface-mount can. It provides 180 µF at 25 V with low ESR and high allowable ripple current, targeting designs that require robust power filtering and high-frequency ripple handling.

Designed for elevated operating temperatures, this device is specified for –55°C to 125°C and a rated load life of 3000 hours at 125°C, offering stable capacitance and measured performance for demanding thermal environments.

Key Features

• Capacitance & Voltage — 180 µF rated capacitance at 25 V with tolerance ±20% (–20% to +20%).
• Conductive Polymer Electrolyte — Solid conductive-polymer construction for low loss and stable performance; tanδ (DF) specified at 0.12 (20°C, 120 Hz).
• Low ESR — 30 mΩ ESR measured at 20°C/100 kHz, enabling low-loss operation in high-frequency circuits.
• High Ripple Capability — Low-frequency ripple current 160 mA (120 Hz) and high-frequency ripple current 1.6 A (300 kHz) to support demanding ripple and switching conditions.
• High-Temperature Endurance — Rated life of 3000 hours at 125°C under rated voltage, with specified limits for capacitance change, tanδ and ESR after endurance testing.
• Leakage Current — Specified leakage current of 225 µA (measured per product data conditions).
• Surface-Mount Can Package — Compact radial can SMD: diameter 8 mm × length 8.7 mm, surface-mount land size 8.3 × 8.3 mm; packaged in embossed carrier taping with moisture-proof packing for assembly.
• RoHS Compliant & Production Status — RoHS compliant and available in mass production.

Typical Applications

• High-frequency power circuits — Low ESR and specified high-frequency ripple current make this capacitor suitable for smoothing and decoupling in switching regulators and other high-frequency power stages.
• High-temperature electronics — Rated for continuous operation up to 125°C with a 3000-hour life at that temperature for systems operating in elevated ambient conditions.
• SMD power modules — Compact SMD radial-can package and embossed carrier taping support automated assembly and lead‑free reflow processes.

Unique Advantages

• High ripple tolerance: 1.6 A at 300 kHz and 160 mA at 120 Hz provide headroom for modern switching supplies and high-frequency loads.
• Low loss at high frequency: 30 mΩ ESR at 100 kHz and tanδ 0.12 (120 Hz) reduce dissipation and improve efficiency in power paths.
• Thermal robustness: –55°C to 125°C operating range and 3000-hour life at 125°C enable reliable operation in thermally challenging applications.
• SMD-ready packaging: Radial can SMD format with embossed carrier taping simplifies placement for automated surface-mount assembly and reflow processes.
• Measurable leakage performance: Specified leakage current (225 µA) for predictable standby and filtering behavior under rated voltage.

Why Choose RKS1E181MCNAHHGS?

The RKS1E181MCNAHHGS delivers a focused combination of high capacitance, low ESR, and elevated-temperature endurance in a compact surface-mount can. Its conductive-polymer construction and high allowable ripple current make it appropriate where stable filtering and low loss are required under high-frequency switching and elevated thermal stress.

This part is well suited for designers specifying robust SMD capacitors for high-frequency power stages and thermally demanding equipment, providing verifiable electrical specifications and production availability from Nichicon.

If you need pricing, lead-time information, or a formal quote for RKS1E181MCNAHHGS, request a quote or contact sales to discuss availability and volume options.