RKS1E121MCNAHFGS

The RKS1E121MCNAHFGS is a surface-mount conductive polymer aluminum electrolytic capacitor offering 120 µF capacitance at a 25 V rating. It combines low ESR and high allowable ripple current with a compact φ8 × 6.7 mm can-style SMD package for space‑constrained power designs.

Engineered for high-frequency and high-temperature environments, this capacitor provides long-term stability with a rated endurance of 3000 hours at 125°C and is compatible with lead-free reflow soldering profiles up to a 260°C peak, supporting robust assembly flows.

Key Features

• Capacitance & Voltage — 120 µF capacitance with a rated voltage of 25 V and tolerance of −20% to +20% at 20°C, 120 Hz.
• Low ESR for High-Frequency Performance — ESR of 30 mΩ measured at 20°C/100 kHz, enabling efficient operation at high switching frequencies.
• High Allowable Ripple Current — High-frequency ripple current capability of 1.6 A at 300 kHz and low-frequency ripple current of 160 mA at 120 Hz for demanding power applications.
• Robust Thermal Endurance — Rated operating temperature from −55°C to +125°C with a load life of 3000 hours at 125°C, supporting long-term reliability in hot environments.
• Leakage & Dissipation — Specified leakage current of 150 µA and tan δ (DF) of 0.12 at 20°C/120 Hz for predictable electrical behavior.
• SMD Package & Assembly — φ8 × 6.7 mm radial can SMD case with embossed carrier taping and moisture-proof packing; compatible with lead-free reflow soldering up to 260°C peak.
• Regulatory Status — RoHS compliant.

Typical Applications

• Power modules and DC–DC converters — Low ESR (30 mΩ at 100 kHz) and high-frequency ripple current capability (1.6 A at 300 kHz) support filtering and decoupling in switching regulators.
• Industrial and high-temperature electronics — Rated to operate from −55°C to +125°C with a 3000-hour endurance at 125°C, suitable for extended service in elevated ambient conditions.
• High-frequency power supplies — Designed for applications requiring reliable performance at switching frequencies, leveraging low loss (tan δ 0.12) and high allowable ripple current.
• Compact SMD power assemblies — φ8 × 6.7 mm SMD can package provides a small footprint solution where space and thermal performance are important.

Unique Advantages

• High ripple tolerance: 1.6 A high-frequency ripple current rating minimizes thermal stress in switching applications.
• Low ESR at 100 kHz: 30 mΩ ESR supports effective high-frequency decoupling and reduces conduction losses.
• Extended high-temperature life: 3000 hours endurance at 125°C delivers predictable long-term performance in hot operating environments.
• Reflow-compatible SMD packaging: Embossed carrier taping and moisture‑proof packing with 260°C peak reflow capability streamline surface-mount assembly processes.
• Compact radial can SMD: φ8 × 6.7 mm size balances capacitance and board space for dense power layouts.
• RoHS compliant: Meets environmental requirements for modern electronic assemblies.

Why Choose RKS1E121MCNAHFGS?

The RKS1E121MCNAHFGS is positioned for engineers who need a compact, surface-mount conductive polymer aluminum capacitor that delivers low ESR, high ripple handling, and proven endurance at elevated temperatures. Its combination of 120 µF capacitance, 25 V rating, and measurable performance figures (ESR, ripple current, leakage, tan δ) makes it suitable for demanding power-management and high-frequency applications.

This part benefits designs that require reliable thermal tolerance and reflow compatibility while minimizing board area. The long load life at 125°C and RoHS compliance provide durability and regulatory alignment for industrial and high-performance electronics programs.

If you would like pricing, availability, or a formal quote for RKS1E121MCNAHFGS, please request a quote or contact sales to discuss your requirements and lead times.