RKS1J390MCNAHJGS

The RKS1J390MCNAHJGS is a surface-mount, conductive-polymer aluminum electrolytic capacitor with a rated capacitance of 39 µF and a rated voltage of 63 V. Designed for general-purpose applications, it delivers low ESR and high allowable ripple currents in a compact φ8 × 10 mm can-style SMD package.

Its key value lies in combining a wide operating temperature range (−55 °C to 125 °C), long endurance (3,000 hours at 125 °C), and RoHS compliance, offering robust performance for designs that require reliable bulk capacitance and high-frequency ripple handling.

Key Features

• Capacitance & Voltage — 39 µF rated capacitance with a 63 V rating and tolerance of −20% to +20%.
• Conductive Polymer Electrolyte — Solid electrolyte construction for stable electrical characteristics and long life as specified for the series.
• Low ESR — ESR of 40 mΩ measured at 20 °C and 100 kHz, supporting low-loss operation at high frequencies.
• High Ripple Current Handling — Low-frequency ripple current of 110 mA at 120 Hz and high-frequency ripple current of 1.1 A at 300 kHz for demanding AC stress.
• Leakage & Dissipation — Leakage current specified at 122 µA and tan δ of 0.12 measured at 20 °C, 120 Hz, enabling predictable loss budgeting.
• Reliability & Endurance — Rated life of 3,000 hours at 125 °C under rated voltage conditions; endurance and damp-heat performance conform to series specifications.
• Package & Mounting — φ8 × 10 mm radial can SMD package, molded platform appropriate for surface-mount assembly; supplied in embossed carrier taping with moisture-proof packing for automated placement.
• Temperature Range & Compliance — Operating range −55 °C to 125 °C and RoHS compliant.

Typical Applications

• General-purpose power filtering — Bulk decoupling and smoothing where a 39 µF, 63 V polarized SMD capacitor with low ESR (40 mΩ) is required.
• High-frequency ripple management — Circuits that require handling of significant ripple currents up to 1.1 A at 300 kHz benefit from the capacitor’s high allowable ripple current.
• High-temperature environments — Designs operating across −55 °C to 125 °C can use this part for stable capacitance and endurance up to 3,000 hours at 125 °C.

Unique Advantages

• Compact SMD can package — φ8 × 10 mm radial can-style SMD form factor provides high capacitance density for space-constrained boards.
• High ripple capability — Specified low- and high-frequency ripple currents (110 mA @120 Hz, 1.1 A @300 kHz) reduce thermal stress in AC-loaded applications.
• Predictable electrical losses — Low ESR (40 mΩ at 100 kHz) and defined tan δ (0.12 at 20 °C/120 Hz) simplify impedance and loss calculations in design.
• Long endurance at elevated temperature — 3,000-hour life at 125 °C supports designs that require extended operation in hot environments.
• Production-ready packaging — Embossed carrier taping with moisture-proof packing supports automated surface-mount assembly flows.
• Regulatory compliance — RoHS-compliant construction for global environmental requirements.

Why Choose RKS1J390MCNAHJGS?

The RKS1J390MCNAHJGS positions itself as a reliable, general-purpose conductive-polymer aluminum electrolytic capacitor for designs that need a compact 39 µF, 63 V SMD solution with low ESR and high ripple-handling capability. Its long rated life at 125 °C and controlled leakage and dissipation characteristics make it suitable for engineering applications where predictable performance over temperature and time is required.

This part is well suited to engineers and procurement teams specifying capacitors for power filtering and ripple management in equipment that operates across wide temperature ranges and benefits from SMD assembly-ready packaging and RoHS compliance.

Request a quote or submit a technical inquiry to receive pricing, availability, and support information for RKS1J390MCNAHJGS.