RKS1J390MCNAJLGS

The RKS1J390MCNAJLGS is a surface‑mount, conductive polymer aluminum solid electrolytic capacitor offering 39 µF capacitance at a 63 V rating. It is designed for general‑purpose electronic applications that require low equivalent series resistance (ESR), high allowable ripple current, and extended high‑temperature endurance.

Key attributes include a low ESR of 30 mΩ (measured at 20°C/100 kHz), high‑frequency ripple capability up to 1.4 A (300 kHz), and a rated lifetime of 3000 hours at 125°C, making it suitable for demanding board‑level power decoupling and bulk energy storage in compact SMD form.

Key Features

• Capacitance & Voltage: 39 µF nominal capacitance with a rated voltage of 63 V and capacitance tolerance of −20% to +20% (measured at 120 Hz, 20°C).
• Low ESR & High Ripple Handling: ESR of 30 mΩ at 20°C/100 kHz and high‑frequency ripple current rating of 1.4 A (300 kHz); low‑frequency ripple current rating of 140 mA (120 Hz).
• Loss Angle (tan δ): tanδ = 0.12 measured at 20°C and 120 Hz, supporting stable AC performance for decoupling and power applications.
• Leakage Current: Specified leakage current of approximately 122 µA under rated conditions.
• High‑Temperature Endurance: Load life of 3000 hours at 125°C with defined limits for capacitance change, tanδ and ESR after endurance testing.
• Robust Thermal Range & Solderability: Operating temperature −55°C to +125°C; SMD type compatible with lead‑free reflow peak temperature up to 260°C.
• Package & Mounting: Radial can SMD package (φ10 × 12.4 mm) for surface‑mount placement; supplied in embossed carrier taping with moisture proof packing for automated assembly.
• Compliance: Series documented as compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Power Conversion: Bulk smoothing and decoupling on 63 V rails where low ESR and 1.4 A high‑frequency ripple handling improve regulator stability and transient response.
• Industrial Electronics: Board‑level energy storage and filtering in industrial control modules that require operation across −55°C to +125°C and long life at elevated temperature.
• Telecommunications & Networking Equipment: Decoupling and local energy buffering on high‑voltage power planes benefitting from low ESR and defined ripple current ratings.

Unique Advantages

• High Ripple Capability: Rated for 1.4 A at 300 kHz and 140 mA at 120 Hz—reduces the number of capacitors needed for high‑frequency filtering and improves board density.
• Low ESR: 30 mΩ ESR (20°C/100 kHz) provides improved power efficiency and lower heat generation in power paths.
• Extended High‑Temperature Life: 3000‑hour endurance at 125°C offers predictable ageing for designs exposed to sustained high temperatures.
• SMD Ready with Moisture Protection: Embossed carrier taping and moisture‑proof packing support automated assembly and reliable soldering performance.
• Clear Electrical Limits: Specified tanδ, leakage, and capacitance tolerance values allow straightforward margining during design and validation.

Why Choose RKS1J390MCNAJLGS?

The RKS1J390MCNAJLGS combines conductive polymer aluminum chemistry with a compact surface‑mount can package to deliver low ESR, high ripple capability, and long high‑temperature endurance. These characteristics make it well suited to engineers designing compact power subsystems, industrial controls, or telecom power modules where thermal resilience and reliable decoupling are important.

With standardized electrical specifications (capacitance, ESR, tanδ, leakage) and supply in embossed carrier tape with moisture‑proof packing, RKS1J390MCNAJLGS offers predictable integration into automated production and long‑term operational stability in demanding environments.

Contact sales to request a quote or submit a technical inquiry for RKS1J390MCNAJLGS and discuss volume pricing, lead times, or technical support for your design needs.