RNU0J821MDN1

The RNU0J821MDN1 from Nichicon is a conductive polymer aluminum solid electrolytic capacitor in a radial lead can designed for general-purpose electronic circuits. It provides 820 µF capacitance at a 6.3 V rating with low ESR and high ripple-current capability suitable for demanding power filtering and decoupling tasks.

Built for robust thermal and load endurance, this RNU-series part is specified for operation from −55 °C to 105 °C and a rated life of 2000 hours at 105 °C, making it appropriate for designs that require sustained performance in elevated-temperature environments.

Key Features

• Capacitance & Voltage — 820 µF nominal capacitance with a 6.3 V rated voltage and ±20% tolerance for predictable bulk energy storage and voltage handling.
• Low ESR and High-Frequency Performance — 7 mΩ ESR measured at 20 °C/100 kHz, delivering low-loss performance at high switching frequencies.
• High Ripple Current Capability — Rated ripple current of 570 mA at 120 Hz (low frequency) and 5.7 A at 300 kHz (high frequency) for effective smoothing in both low- and high-frequency power applications.
• Thermal Endurance — Rated life of 2000 hours at 105 °C with an operating temperature range of −55 °C to 105 °C for reliable operation under elevated thermal stress.
• Compact Radial Package — φ8 × 11.5 mm can (L: 1.15 × D: 0.8 cm) with 3.5 mm lead spacing (±0.5 mm) in a radial lead mounting style suitable for through-hole assembly.
• Leakage and Polarization — Polarized capacitor with a specified leakage current of 1033 µA, suitable for applications that require known leakage characteristics.
• Packaging & Production — Available in bulk with no terminal forming and bag packing; product is in mass production.
• Regulatory Compliance — RoHS compliant.

Typical Applications

• General-purpose power filtering — Provides bulk capacitance and low ESR for smoothing and energy storage in general circuits that require 820 µF at 6.3 V.
• Decoupling for switching supplies — High ripple-current capability (5.7 A at 300 kHz) and low ESR make it suitable for decoupling downstream of switching regulators and converters.
• High-frequency signal support — Low ESR at 100 kHz supports performance in circuits operating at higher switching or sampling frequencies.

Unique Advantages

• Low ESR for lower losses — 7 mΩ ESR at 100 kHz reduces power dissipation and improves efficiency in high-frequency power paths.
• High ripple handling — Rated ripple currents of 570 mA (120 Hz) and 5.7 A (300 kHz) enable reliable performance across low- and high-frequency ripple environments.
• Compact radial can — φ8 × 11.5 mm package with standard 3.5 mm lead spacing simplifies through-hole layout while delivering substantial capacitance.
• Wide operating temperature — −55 °C to 105 °C rating supports designs exposed to a broad thermal range.
• Endurance at elevated temperature — 2000 hours rated life at 105 °C provides quantifiable long-term performance for thermal-stressed applications.
• RoHS compliant and production-ready — Meets RoHS requirements and is available in mass production with bulk bag packing for volume assembly.

Why Choose RNU0J821MDN1?

The RNU0J821MDN1 combines high capacitance with low ESR and strong ripple-current capability in a compact radial package, making it a practical choice for designs that need reliable bulk energy storage and efficient power smoothing. Its specified operating range (−55 °C to 105 °C) and 2000-hour endurance at 105 °C provide predictable performance under thermal stress.

This Nichicon RNU-series part is suited for engineers and procurement teams seeking a mass-production, RoHS-compliant conductive polymer aluminum capacitor with defined electrical characteristics (820 µF, 6.3 V, 7 mΩ ESR) and standard through-hole mounting for straightforward PCB integration.

Request a quote or submit an inquiry to our sales team to discuss pricing, availability, and delivery for RNU0J821MDN1.