RKS1D681MCNAJLGS

The RKS1D681MCNAJLGS from Nichicon is a surface‑mount conductive polymer aluminum solid electrolytic capacitor with a rated capacitance of 680 µF and a rated voltage of 20 V. It combines high capacitance and low equivalent series resistance in an SMD radial can package for general‑purpose power applications.

Designed for robust thermal and load performance, the part delivers a low ESR of 20 mΩ (measured at 20°C/100 kHz), high frequency ripple capability up to 2.0 A (300 kHz), and a specified endurance of 3000 hours at 125°C. Packaging is embossed carrier taping with moisture proof packing and the device is RoHS compliant.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance with a rated voltage of 20 V and a capacitance tolerance of -20% to +20% (measured at 120 Hz, 20°C).
• Low ESR — ESR specified at 20 mΩ at 20°C/100 kHz, supporting efficient power delivery and reduced loss at high frequency.
• High Ripple Current Capability — Low‑frequency ripple current of 200 mA at 120 Hz and high‑frequency ripple current of 2.0 A at 300 kHz for demanding decoupling and smoothing tasks.
• Loss Factor (tan δ) — tan δ of 0.12 (measured at 20°C, 120 Hz) for predictable loss performance.
• Leakage Current — Specified leakage current of 680 µA after rated voltage application.
• Wide Operating Temperature and Long Life — Rated for -55°C to +125°C with an endurance (load life) of 3000 hours at 125°C.
• SMD Radial Can Package — φ10 × 12.4 mm body (L: 1.24 cm × D: 1.0 cm) in an SMD radial can style suitable for automated placement; supplied in embossed carrier taping / moisture proof packing.
• RoHS Compliant — Conforms to RoHS requirements.

Typical Applications

• General‑Purpose Power Filtering — 680 µF capacitance combined with low ESR and 2.0 A high‑frequency ripple rating makes the capacitor suitable for bulk filtering and smoothing in power rails.
• DC‑DC Converter Output Stage — Low ESR and high ripple capability help maintain stable output voltage under dynamic loads.
• Energy Storage and Hold‑Up — High capacitance and defined leakage current support short‑term energy buffering and hold‑up functions in compact SMD form.

Unique Advantages

• High Capacitance in SMD Form: 680 µF in a φ10 × 12.4 mm radial can enables significant bulk capacitance while minimizing board area.
• Low ESR at High Frequency: 20 mΩ ESR (100 kHz) reduces dissipation and supports tighter transient response in power systems.
• Robust Thermal Endurance: 3000 hours at 125°C gives predictable long‑term performance in elevated temperature environments.
• High Ripple Handling: 2.0 A high‑frequency ripple current rating supports demanding decoupling and switching power applications.
• Manufacturing‑Friendly Packaging: Embossed carrier taping with moisture proof packing supports automated SMD assembly and storage requirements.
• Measured Loss Characteristics: Specified tan δ (0.12 at 20°C/120 Hz) provides a verifiable metric for loss budgeting in designs.

Why Choose RKS1D681MCNAJLGS?

The RKS1D681MCNAJLGS positions itself as a practical, high‑capacitance SMD solution for designs that require reliable bulk capacitance, low loss, and strong ripple performance within a compact radial can footprint. Its combination of 680 µF capacitance, 20 V rating, low ESR (20 mΩ at 100 kHz), and a 3000‑hour endurance at 125°C makes it suited for engineers balancing performance and long‑term robustness.

This capacitor fits engineers and procurement teams looking for a verified, RoHS‑compliant conductive polymer aluminum electrolytic component for general‑purpose power filtering, DC‑DC converter outputs, and energy buffering where measurable electrical and thermal specifications are required.

Request a quote or contact sales to discuss pricing, availability, and lead times for RKS1D681MCNAJLGS.