RKS1E181MCNAHJGS

The RKS1E181MCNAHJGS is a surface-mount conductive polymer aluminum electrolytic capacitor in the Nichicon RKS series. It delivers 180 µF capacitance at a 25 V rating in a compact φ8 × 10 mm SMD can designed for general-purpose power applications.

With low equivalent series resistance (27 mΩ at 100 kHz), high ripple current capability, wide operating temperature range (−55 °C to 125 °C) and a rated load life of 3000 hours at 125 °C, this part targets designs that require stable decoupling and bulk energy storage in demanding thermal environments.

Key Features

• Capacitance and Voltage: 180 µF nominal capacitance with a rated voltage of 25 V and tolerance of −20% to +20% (measured at 20 °C, 120 Hz).
• Low Loss and ESR: tan δ (DF) of 0.12 at 20 °C/120 Hz and ESR of 27 mΩ measured at 20 °C/100 kHz—supporting efficient high-frequency performance.
• Ripple Current Capability: Low-frequency ripple current of 160 mA at 120 Hz and high-frequency ripple current of 1.6 A at 300 kHz for improved smoothing and decoupling under AC stress.
• Leakage Current: Specified leakage current of 225 µA (after voltage application conditions as defined in the datasheet).
• High Temperature Endurance: Load life of 3000 hours at 125 °C to support long-term reliability in elevated ambient conditions.
• Robust Packaging for Assembly: Surface-mount radial can package (φ8 × 10 mm) supplied in embossed carrier taping with moisture-proof packing; compatible with lead-free reflow up to 260 °C peak.
• Polarized, SMD Form Factor: Polarized aluminum solid electrolytic construction optimized for surface-mount integration in compact board layouts.
• Regulatory Compliance: Series-level documentation indicates compliance with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General purpose power decoupling: Use where a compact SMD capacitor with high capacitance and low ESR is required to stabilize DC rails and suppress voltage ripple.
• Bulk energy storage on compact boards: Provides localized energy buffering in designs that need dense capacitance in a small footprint and wide temperature tolerance.
• High-frequency smoothing: Suited for circuits that place demands on high-frequency ripple handling, leveraging its 1.6 A high-frequency ripple current rating.

Unique Advantages

• High capacitance in a small SMD can: 180 µF in a φ8 × 10 mm package enables space-efficient board designs without sacrificing bulk capacitance.
• Low ESR for improved efficiency: 27 mΩ ESR at 100 kHz reduces power loss and heating under AC conditions, improving thermal performance and stability.
• Wide operating temperature range: −55 °C to 125 °C rating supports use across harsh thermal environments and broad operating conditions.
• Long high-temperature life: 3000-hour load life at 125 °C supports longevity in thermally stressed applications.
• Assembly-ready packaging: Embossed carrier taping with moisture-proof packing and lead-free reflow compatibility simplify automated placement and soldering.
• Documented leakage and loss characteristics: Specified leakage current and tan δ provide design visibility for precision power management and reliability planning.

Why Choose RKS1E181MCNAHJGS?

RKS1E181MCNAHJGS combines high bulk capacitance, low ESR and robust thermal endurance in a compact surface-mount can, making it well suited for engineers building reliable power filtration and decoupling solutions where board space and thermal performance matter. Its long rated life at elevated temperature and defined electrical characteristics simplify design trade-offs between capacitance density and long-term stability.

This part is a practical choice for teams seeking a general-purpose SMD electrolytic capacitor with verifiable ripple, leakage and endurance specifications, supplied in assembly-friendly packaging for automated production.

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