RNU0J821MCN1

The RNU0J821MCN1 is a Nichicon RNU series conductive polymer aluminum solid electrolytic capacitor in a radial-lead can. It delivers 820 µF nominal capacitance at a 6.3 V rating in a compact φ8×11.5 mm package designed for general-purpose circuit power management.

Key value comes from low ESR and high ripple-current capability combined with a wide temperature range (−55°C to 105°C) and a 2000 hour endurance at 105°C, making it suitable for designs that require compact bulk capacitance with robust thermal and ripple performance.

Key Features

• Capacitance & Voltage — 820 µF nominal capacitance with a rated voltage of 6.3 V and a tolerance of −20% to +20%.
• Low ESR & High-Frequency Performance — ESR specified at 7 mΩ (20°C/100 kHz), enabling effective high-frequency decoupling and low-loss operation.
• High Ripple Current Handling — Rated ripple current of 570 mA at 120 Hz and 5.7 A at 300 kHz, supporting both low- and high-frequency ripple environments.
• Loss Tangent — tan δ (DF) of 0.08 measured at 20°C, 120 Hz, for predictable AC loss behavior.
• Temperature & Endurance — Operating range from −55°C to 105°C with a rated life/endurance of 2000 hours at 105°C.
• Radial Package & Mechanical — φ8 × 11.5 mm can with 3.5 mm lead spacing (±0.5 mm tolerance); available in bulk or bag packing with no terminal forming.
• Leakage Current — Specified leakage current of 1033 µA (measured condition: 20°C, after 2 minutes).
• Environmental Compliance — RoHS compliant.

Typical Applications

• General-purpose power filtering — Use where 820 µF bulk capacitance and low ESR (7 mΩ) improve supply smoothing and reduce voltage ripple.
• High-frequency decoupling — Suited for circuits that require high ripple endurance up to 300 kHz, with a rated high-frequency ripple current of 5.7 A.
• Compact assemblies with radial leads — The φ8×11.5 mm radial-can footprint and 3.5 mm lead spacing fit compact board-level designs needing through-hole mounting.

Unique Advantages

• Low ESR for efficient power delivery: 7 mΩ ESR at 100 kHz reduces dissipation and supports stable voltage under load.
• High ripple-current capability: Rated for 570 mA at 120 Hz and 5.7 A at 300 kHz, enabling reliable performance across frequency ranges.
• Wide operating temperature: −55°C to 105°C supports use in environments with significant thermal variation.
• Proven endurance: 2000 hours at 105°C provides defined lifetime expectations for thermal-stressed applications.
• Compact radial footprint: φ8×11.5 mm package with standardized lead spacing simplifies mechanical integration on through-hole PCBs.
• Regulatory compliance: RoHS status ensures conformity with lead-free material requirements.

Why Choose RNU0J821MCN1?

The RNU0J821MCN1 positions itself as a reliable, compact conductive polymer aluminum capacitor for designers who need substantial bulk capacitance with low ESR and strong ripple-current handling in a radial-lead form factor. Its measured characteristics—7 mΩ ESR, 5.7 A high-frequency ripple rating, and −55°C to 105°C operating range—make it a fit for assemblies where thermal endurance and high-frequency performance matter.

This part is suited to engineers and procurement teams specifying general-purpose capacitors for board-level power filtering and decoupling where predictable electrical behavior, compact size, and RoHS compliance are required. Mass-production status supports predictable sourcing for production volumes.

Request a quote or contact sales to discuss pricing, lead time and availability for RNU0J821MCN1.