RR50E681MDN1

The RR50E681MDN1 is a conductive polymer aluminum solid electrolytic capacitor in a radial lead can, optimized for general-purpose low-voltage power applications. It delivers a combination of ultra-low ESR and high ripple-current capability in a compact φ8×11.5 mm package with 3.5 mm lead spacing.

Key value propositions include low impedance (5 mΩ at 20°C/100 kHz), high-frequency ripple handling (up to 6.63 A), a wide operating temperature range (−55°C to 105°C) and a rated life of 2000 hours at 105°C, making it suitable where high ripple performance and thermal endurance are required.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance with ±20% tolerance at 120 Hz, rated for 2.5 V operation.
• Ultra-low ESR — 5 mΩ ESR specified at 20°C/100 kHz, reducing loss and improving efficiency in high-frequency power paths.
• High ripple-current capability — Rated ripple current of 663 mA at 120 Hz (low frequency) and 6.63 A at higher frequency (specification shown at 300 kHz / 100 kHz conditions), enabling effective smoothing under heavy AC excitation.
• Solid conductive polymer construction — Polymer electrolyte provides stable electrical characteristics and low loss compared with liquid electrolytes.
• Thermal endurance — Load life rated for 2000 hours at 105°C, with performance criteria defined for capacitance, tan δ and ESR after endurance testing.
• Compact radial package — φ8×11.5 mm can with 3.5 mm lead spacing (±0.5 mm tolerance) for through-hole mounting; available in bulk or bag packing.
• Leakage and dissipation — Leakage current specified at 425 µA after 2 minutes at 20°C; tan δ (DF) 0.15 at 20°C, 120 Hz.
• RoHS compliant — Manufactured to conform with RoHS requirements; radial lead design corresponds to lead-free flow soldering conditions per product documentation.

Typical Applications

• Low-voltage power rails — Bulk filtering and decoupling in 2.5 V systems where low ESR and high ripple capability reduce voltage excursion and heat dissipation.
• Embedded and consumer electronics — Local energy storage and smoothing in compact boards requiring a small footprint and reliable high-frequency performance.
• Power modules and DC–DC converters — Output-stage filtering where high ripple current capability and low impedance at 100 kHz+ preserve converter stability and efficiency.
• General-purpose industrial electronics — Applications needing wide operating temperature range (−55°C to 105°C) and long-term endurance (2000 hours at 105°C).

Unique Advantages

• High-frequency performance: 5 mΩ ESR at 100 kHz minimizes losses and supports high ripple currents up to 6.63 A, improving power delivery in switching environments.
• Thermal robustness: Rated for 2000 hours at 105°C, enabling designs that must tolerate sustained elevated temperatures without rapid degradation.
• Compact footprint: φ8×11.5 mm can with 3.5 mm lead spacing provides a space-efficient through-hole option for boards with limited real estate.
• Stable electrical characteristics: Conductive polymer construction yields low tan δ (0.15 at 120 Hz/20°C) and controlled leakage (425 µA after 2 minutes at 20°C), supporting predictable system behavior.
• Assembly-friendly leaded format: Radial lead configuration and compatibility with lead-free flow soldering conditions simplify integration into standard through-hole assembly processes.
• Regulatory compliance: RoHS conformity supports deployment in regions and products requiring restricted-substance compliance.

Why Choose RR50E681MDN1?

The RR50E681MDN1 positions itself as a compact, reliable solution for designers needing low-impedance, high-ripple-capacity bulk capacitance at 2.5 V. Its conductive polymer construction and guaranteed ESR/ripple specifications make it suitable for power-supply output filtering and local energy storage in dense, thermally demanding designs.

This part is well suited to engineers prioritizing electrical performance, thermal endurance and a small through-hole footprint—delivering predictable behavior over a wide temperature range with RoHS compliance and production availability.

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