RNS1D101MDN1

The RNS1D101MDN1 is a conductive polymer aluminum solid electrolytic capacitor in a radial lead can, designed for general-purpose electronic applications. It delivers 100 µF capacitance at a 20 V rating with low ESR and high ripple-current capability for demanding power and decoupling tasks.

Its combination of low equivalent series resistance, wide operating temperature range, and 2000-hour endurance at 105°C targets compact designs that require stable filtering and high-frequency ripple handling in embedded and power-electronics applications.

Key Features

• Capacitance & Tolerance — 100 µF nominal capacitance with ±20% tolerance at 120 Hz, 20°C.
• Rated Voltage — 20 V DC rated voltage suitable for common low-voltage power rails.
• Low ESR — 15 mΩ ESR measured at 20°C/100 kHz, supporting low-loss operation and improved high-frequency performance.
• High Ripple Current — Rated ripple current of 450 mA at 120 Hz and 4.5 A at 300 kHz, enabling both low- and high-frequency ripple handling.
• Leakage Current — Typical leakage current up to 300 µA after 2 minutes at 20°C under rated voltage conditions.
• Temperature & Endurance — Operating range −55°C to +105°C with 2000 hours endurance at 105°C under rated voltage.
• Package & Mounting — Radial lead, can package sized φ10 × 12.5 mm with 5 mm lead spacing (±0.5 mm), supplied bulk/bag for production use.
• Polarized — Polarized capacitor for correct polarity applications.

Typical Applications

• Power-supply decoupling — Low ESR and high ripple-current ratings make it suitable for smoothing and decoupling on 20 V and lower rails.
• DC-DC converter filtering — High-frequency ripple capability (4.5 A at 300 kHz) supports input/output filtering in switching regulators.
• Embedded and consumer electronics — Compact φ10 × 12.5 mm radial package fits space-constrained boards requiring reliable bulk capacitance.
• Mixed-signal systems — Low ESR at 100 kHz aids in maintaining stable analog and digital supply rails in mixed-signal designs.

Unique Advantages

• Conductive polymer chemistry — Solid electrolyte construction delivers lower ESR compared with traditional electrolytics, improving efficiency at high frequencies.
• High-frequency performance — 15 mΩ ESR at 100 kHz combined with a 4.5 A ripple rating at 300 kHz supports high-speed switching environments.
• Wide thermal endurance — Rated for −55°C to +105°C operation and validated for 2000 hours at 105°C, providing predictable long-term behavior in elevated-temperature applications.
• Compact radial form factor — φ10 × 12.5 mm can with 5 mm lead spacing enables easy through-hole assembly while minimizing board area.
• Production-ready packaging — Supplied in bulk/bag for mass production workflows.

Why Choose RNS1D101MDN1?

RNS1D101MDN1 combines conductive polymer solid-electrolyte construction with low ESR and high ripple-current capability to address demanding decoupling and filtering needs in compact, through-hole form factors. Its rated 20 V voltage, 100 µF capacitance, and verified endurance at 105°C make it suitable for engineers designing robust power subsystems in embedded, consumer, and industrial electronics.

Choose this part when you need a compact, production-ready aluminum polymer capacitor that balances high-frequency performance, thermal endurance, and straightforward radial mounting for reliable, long-term operation.

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