RKS1D680MCNAHFGS

The RKS1D680MCNAHFGS from Nichicon is a surface-mount conductive polymer aluminum solid electrolytic capacitor in the RKS series, offering 68 µF capacitance at a 20 V rating. Designed for SMD assembly, it delivers low ESR and high allowable ripple current in a compact φ8 × 6.7 mm can-style SMD package.

With an extended operating range of −55°C to 125°C and a rated endurance of 3000 hours at 125°C, this part targets applications that require stable decoupling, smoothing, and high-frequency performance in thermally demanding assemblies. It is shipped in embossed carrier taping with moisture-proof packing and is RoHS compliant.

Key Features

• Capacitance & Tolerance — 68 µF nominal capacitance with tolerance of −20% to +20% at 20°C, 120 Hz, suitable where defined capacitance windows are required.
• Rated Voltage & Polarization — 20 V rated voltage; polarized electrolytic construction for DC applications.
• 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 decoupling at high switching frequencies.
• Low-Frequency Ripple Capability — 160 mA allowable ripple current at 120 Hz for bulk smoothing and low-frequency filtering tasks.
• Wide Temperature & Long Life — Operating temperature range from −55°C to 125°C with a load life (endurance) of 3000 hours at 125°C, supporting sustained performance in high-temperature environments.
• Tangent of Loss Angle & Leakage — tan δ of 0.12 (20°C, 120 Hz) and leakage current specified at 100 µA, offering predictable loss and leakage characteristics for design margining.
• SMD Package & Assembly — Radial can SMD package (φ8 × 6.7 mm) with surface-mount land size 8.3 × 8.3 mm; compatible with lead-free reflow soldering conditions up to 260°C peak as noted in the datasheet.
• Packaging & Production Status — Supplied in embossed carrier taping with moisture-proof packing; listed as mass production.
• Regulatory — RoHS compliant.

Typical Applications

• Power rail decoupling: Low ESR (30 mΩ at 100 kHz) and high-frequency ripple capability (1.6 A at 300 kHz) make it suitable for decoupling near switching regulators and power ICs operating at high switching frequencies.
• DC‑DC converter input/output filtering: 68 µF capacitance combined with 160 mA (120 Hz) and 1.6 A (300 kHz) ripple ratings supports both bulk smoothing and high-frequency filtering in converter designs.
• High-temperature electronics: Rated for −55°C to 125°C with a 3000-hour life at 125°C, appropriate for equipment exposed to elevated ambient temperatures.
• SMD manufacturing environments: Can-style SMD package and lead-free reflow compatibility to 260°C peak support automated surface-mount assembly and reflow processes.

Unique Advantages

• High ripple tolerance: 1.6 A at 300 kHz and 160 mA at 120 Hz allow designers to place the capacitor close to switching nodes for improved EMI and transient handling.
• Stable high-frequency behavior: Low ESR (30 mΩ at 100 kHz) and specified tan δ provide predictable impedance at switching frequencies, simplifying frequency-domain design trade-offs.
• Robust thermal endurance: 3000 hours at 125°C ensures long-term reliability in hot operating conditions, reducing the need for frequent requalification in thermal designs.
• SMD-ready packaging: Embossed carrier taping with moisture-proof packing and compatibility with 260°C peak reflow supports high-throughput manufacturing and handling.
• Clear electrical limits: Specified leakage current (100 µA) and capacitance tolerance (−20% to +20%) enable straightforward margining in power and timing circuits.
• Compliance: RoHS compliance assists in meeting environmental and regulatory requirements for modern electronics production.

Why Choose RKS1D680MCNAHFGS?

The RKS1D680MCNAHFGS combines conductive polymer aluminum electrolytic technology with a compact SMD can package to deliver low ESR, high ripple capability, and extended thermal endurance. These characteristics make it well suited to power conversion and high-frequency filtering tasks where stable electrical performance and long life at elevated temperatures are required.

This part is an appropriate choice for engineers designing compact, high-performance power subsystems in equipment that undergoes automated surface-mount assembly and operates across wide temperature ranges. Its defined electrical specifications and RoHS compliance support predictable integration and regulatory alignment over the product lifecycle.

Request a quote or submit a parts inquiry to discuss availability, tape-and-reel quantities, and lead times for RKS1D680MCNAHFGS. Our team can provide pricing and delivery details tailored to your production requirements.