RHA0E681MCN1GS

The RHA0E681MCN1GS is a conductive polymer aluminum solid electrolytic capacitor in a compact SMD can package designed for general-purpose power applications. It combines high capacitance (680 μF) with low equivalent series resistance (8 mΩ at 100 kHz) to support high ripple currents and efficient decoupling on low-voltage power rails.

Engineered for robust operation from −55°C to +105°C, this RoHS‑compliant, lead‑free reflow compatible part (260°C peak correspondence) targets designers who need compact, high-performance energy storage and filtering in space-constrained assemblies.

Key Features

• Low ESR performance — ESR of 8 mΩ measured at 100 kHz provides low impedance for high-frequency decoupling and fast transient response.
• High capacitance in a small SMD can — 680 μF in an 8×6.7 mm case (L×D: 6.7 × 8 mm) delivers bulk capacitance where board area is limited.
• High ripple-current capability — Rated for 500 mA at 120 Hz and 5 A at 300 kHz, enabling reliable operation under heavy AC loading at both low and high frequencies.
• Wide operating temperature range — Specified from −55°C to +105°C to support industrial and embedded applications.
• Verified endurance — Series load-life specification of 2000 / 5000 hours at 105°C; this part is specified for 2000 hours at 105°C, providing predictable long-term performance under thermal stress.
• Surface-mount convenience — Radial SMD can with recommended land size 8.3 × 8.3 mm for straightforward PCB integration and automated assembly.
• RoHS compliant and reflow compatible — Lead‑free reflow soldering condition at 260°C peak correspondence and compliant to RoHS (2011/65/EU, (EU)2015/863).
• Low leakage — Leakage current specified at 700 μA after 2 minutes at 20°C for the 680 μF / 2.5 V configuration.

Typical Applications

• Point-of-load decoupling — Provides bulk capacitance and low impedance on low-voltage DC-DC converter outputs to stabilize voltage rails and improve transient response.
• Power-supply smoothing — Handles ripple and AC stress in power-supply outputs and intermediate bus decoupling thanks to high ripple-current ratings.
• Embedded and industrial electronics — Compact SMD can and wide temperature range suit space-constrained boards used in industrial control and embedded systems.
• High-frequency power modules — Low ESR and measured performance at 100 kHz and 300 kHz make it suitable for high-frequency switching environments.

Unique Advantages

• Compact bulk capacitance: 680 μF in an 8×6.7 mm case reduces board area while delivering significant energy storage.
• Superior high-frequency behavior: 8 mΩ ESR at 100 kHz and a 5 A rating at 300 kHz enable effective filtering in modern switching power designs.
• Thermal endurance: Series load-life of 2000 / 5000 hours at 105°C and part-level 2000 h rating provide predictable lifetime under elevated temperatures.
• Assembly-ready SMD form: Radial, can-style SMD with defined land pattern simplifies pick-and-place and reflow processes.
• Regulatory and process compatibility: RoHS compliance and lead-free reflow compatibility (260°C peak) support modern manufacturing and environmental requirements.
• Measured leakage performance: Leakage current specified at 700 μA (after 2 minutes, 20°C) gives a quantifiable baseline for design budgeting.

Why Choose RHA0E681MCN1GS?

RHA0E681MCN1GS positions itself where compact size, high capacitance and low ESR are required together: designers building low-voltage power rails and high-frequency converters will find its combination of 680 μF, 2.5 V rating, 8 mΩ ESR, and strong ripple capability valuable for reducing voltage ripple and improving transient stability. The part’s SMD can package and defined land pattern make it straightforward to integrate into automated assembly flows.

Backed by the Nichicon RHA series specifications and RoHS compliance, this capacitor delivers a clear performance-to-size tradeoff for general-purpose power and filtering tasks across industrial and embedded designs, with documented endurance and leakage parameters for predictable long-term behavior.

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