RR70G821MDN1

The RR70G821MDN1 from Nichicon is a conductive polymer aluminum solid electrolytic capacitor in a radial‑lead can, rated 820 µF at 4 V. It delivers low ESR and high ripple current in a compact φ10 × 12.5 mm package with 5 mm lead spacing for through‑hole assemblies.

Designed for general‑purpose power applications, this polarized capacitor targets designs that require high ripple handling and long life under elevated temperature, offering a 2000‑hour endurance at 105°C and RoHS compliance.

Key Features

• Capacitance and Voltage — 820 µF nominal capacitance at a 4 V rated voltage with ±20% tolerance (‑20% to +20%).
• Conductive Polymer Electrolyte — Solid conductive polymer construction for stable performance and low equivalent series resistance.
• Ultra Low ESR — ESR specified at 7 mΩ (100 kHz, 20°C), enabling efficient power delivery and reduced losses.
• High Ripple Current — High ripple capability: 610 mA at 120 Hz and 6.1 A at 300 kHz, supporting both low‑ and high‑frequency power stages.
• Long Operating Life — Load life rated 2000 hours at 105°C, with specified limits on capacitance change and ESR after endurance testing.
• Package & Mounting — Radial lead, can package (φ10 × 12.5 mm), 5 mm lead spacing, supplied in bulk (bag packing) for through‑hole assembly.
• Wide Temperature Range & Polarization — Operating temperature range −55°C to +105°C; polarized device for DC applications.
• Regulatory Compliance — RoHS compliant.

Typical Applications

• Power supply decoupling and smoothing — Low ESR and high ripple current make this capacitor suitable for bulk decoupling and smoothing in compact DC power supplies and converters.
• High‑frequency power stages — High ripple capability at 300 kHz supports decoupling and filtering in high‑frequency switching regulators.
• Energy buffering — 820 µF capacitance in a small through‑hole package provides local energy storage for hold‑up and transient load events.
• General‑purpose electronics — Polarized radial form factor fits a range of board‑level applications where through‑hole mounting and robust thermal endurance are required.

Unique Advantages

• Measurable low-loss performance — 7 mΩ ESR (100 kHz) reduces conduction losses and heat generation in power circuits.
• High ripple tolerance across frequencies — Specified ripple performance at both 120 Hz and 300 kHz supports mixed-frequency designs without changing capacitor topology.
• Compact, serviceable through‑hole form — φ10 × 12.5 mm radial can with 5 mm lead spacing combines small footprint with easy assembly and replacement.
• Long high‑temperature life — 2000 hours at 105°C gives designers a defined endurance window for thermal stress planning and reliability margins.
• RoHS compliance — Meets RoHS requirements for regulatory and manufacturing consistency.

Why Choose RR70G821MDN1?

RR70G821MDN1 is positioned for engineers who need a compact, through‑hole electrolytic with low ESR, high ripple capability, and proven thermal endurance. Its conductive polymer construction and clear electrical specifications make it suitable for power decoupling, smoothing, and buffering in space‑constrained assemblies.

The combination of measurable ESR (7 mΩ at 100 kHz), specified ripple currents at both low and high frequencies, and a 2000‑hour rating at 105°C provides predictable performance and lifecycle planning for procurement and design teams relying on consistent component behavior.

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