RKS1E121MCNAHHGS

The RKS1E121MCNAHHGS is a surface-mount conductive-polymer aluminum solid electrolytic capacitor with 120 µF capacitance and a 25 V rating. It combines low equivalent series resistance and high allowable ripple current in a compact SMD can package optimized for high-temperature, high-frequency power applications.

Designed for reliability under elevated temperatures, this capacitor offers a rated operating range of -55 °C to 125 °C and a load life of 3000 hours at 125 °C, making it suitable for demanding industrial and telecom power filtering and decoupling tasks where long-term stability and high-frequency performance matter.

Key Features

• Capacitance & Voltage — 120 µF nominal capacitance at a rated voltage of 25 V with a tolerance of -20% to +20%.
• Low ESR & High-Frequency Performance — ESR of 30 mΩ measured at 20 °C / 100 kHz and a high-frequency ripple current rating of 1.6 A (300 kHz), enabling effective smoothing and decoupling at switching frequencies.
• Tangent of Loss Angle — tanδ = 0.12 (measured at 20 °C, 120 Hz), supporting predictable AC loss behavior in filter and decoupling circuits.
• Thermal Endurance — Wide operating temperature range from -55 °C to 125 °C and a rated life of 3000 hours at 125 °C for sustained high-temperature performance.
• Leakage Current — Specified leakage current of 150 µA for predictable standby and bias performance.
• Package & Mounting — Surface-mount radial can (φ8 × 8.7 mm length) supplied in embossed carrier taping with moisture-proof packing for automated assembly; recommended PCB land size L: 8.3 mm × W: 8.3 mm.
• Reflow Compatibility — SMD type constructed for lead-free reflow soldering conditions up to a 260 °C peak.
• RoHS Compliant — Conforms to RoHS directive requirements.

Typical Applications

• Power Supplies & DC–DC Converters — Bulk smoothing and output decoupling where low ESR and high ripple current help reduce voltage ripple at switching frequencies.
• Telecommunications & Networking Equipment — Local power filtering in high-density boards that operate at elevated temperatures and require long-life capacitors.
• Industrial Controls & Instrumentation — Energy storage and decoupling in converters and drivers that face wide temperature swings and continuous operation.

Unique Advantages

• High ripple-current capability: 1.6 A at high frequency (300 kHz) and 160 mA at 120 Hz provide robust AC handling for switching-regulator outputs.
• Low ESR for improved transient response: 30 mΩ ESR at 100 kHz reduces loss and improves voltage stability under load transients.
• Extended high-temperature life: Rated for 3000 hours at 125 °C to support long-term reliability in hot environments.
• Reflow-ready SMD can: φ8 × 8.7 mm SMD package supplied in embossed carrier taping and moisture-proof packing for streamlined automated assembly.
• Predictable electrical behavior: Specified tanδ, leakage, and ESR figures enable reliable design margining and verification.
• RoHS compliance: Meets current RoHS directive requirements for lead-free production lines.

Why Choose RKS1E121MCNAHHGS?

The RKS1E121MCNAHHGS delivers a balance of high capacitance, low ESR, and elevated temperature endurance in a compact SMD can package. Its combination of 120 µF capacitance, 25 V rating, 30 mΩ ESR (100 kHz), and a 3000-hour life at 125 °C makes it well suited for designers targeting reliable power filtering and decoupling in high-frequency, high-temperature environments.

This part is suited for engineers and procurement teams building industrial, telecommunications, and power-conversion equipment that require quantifiable ripple handling, stable leakage characteristics, and a reflow-compatible SMD form factor to integrate into automated assembly processes.

If you would like pricing, lead-time information, or sample availability for RKS1E121MCNAHHGS, please request a quote or contact sales to discuss your project requirements.