RNL1C821MDS1

The RNL1C821MDS1 is a conductive polymer aluminum solid electrolytic capacitor in a radial-lead can, optimized for high-capacitance, low-ESR applications. Its 820 µF capacitance at 16 V and compact φ8×20 mm package deliver bulk energy storage and high ripple handling in a through-hole form factor.

Designed for general-purpose power electronics and system power management, this RNL-series device combines low ESR, high ripple current capability and a wide operating temperature range to support demanding power smoothing and decoupling roles in industrial, telecom and consumer equipment.

Key Features

• Conductive polymer construction Solid polymer aluminum electrolyte for reduced ESR and stable electrical performance under load.
• Capacitance & rated voltage 820 µF nominal capacitance at 16 V with tolerance of −20% to +20% for predictable bulk storage.
• Low ESR and loss angle ESR = 8 mΩ (20°C, 100 kHz) and tanδ = 0.12 (20°C, 120 Hz), supporting efficient high-frequency operation.
• High ripple-current capability Rated ripple current: 750 mA at 120 Hz (low frequency) and 7.5 A at 300 kHz (high frequency), enabling robust AC loading performance.
• Operational range and endurance Wide category temperature range of −55°C to +105°C and rated life of 2000 hours at 105°C.
• Radial through-hole package φ8×20 mm can, radial lead spacing 3.5 mm (±0.5 mm) for straightforward through-hole mounting; available in bulk or bag packing.
• Controlled leakage Leakage current specified at 1312 µA (measured after standard conditioning), supporting predictable standby behavior.
• RoHS compliant Meets RoHS requirements for environmentally restricted substances.

Typical Applications

• Power supply output smoothing — Low ESR (8 mΩ) and high ripple current capability make this capacitor suitable for smoothing outputs on DC power supplies and regulator stages.
• DC‑DC converter bulk decoupling — 820 µF bulk capacitance helps stabilize voltage rails and absorb load transients in switching converters.
• High-frequency power stages — Tanδ and ESR specified at relevant test frequencies support use in high-frequency power modules and intermediate bus capacitors.
• Industrial and telecom power subsystems — Wide −55°C to +105°C operating range and 2000 h endurance at 105°C address demanding thermal and reliability environments.

Unique Advantages

• Efficient power delivery: Low ESR (8 mΩ at 100 kHz) reduces dissipation and voltage ripple, improving regulator efficiency and thermal performance.
• High AC load tolerance: 7.5 A high-frequency ripple rating and 750 mA at 120 Hz allow reliable operation under heavy ripple conditions.
• Compact high-capacitance form: 820 µF in a φ8×20 mm radial can provides significant bulk energy storage in a small through-hole footprint.
• Wide temperature and endurance: −55°C to +105°C range with 2000 hours life at 105°C supports sustained performance in harsh environments.
• Through-hole convenience: Radial leads with 3.5 mm spacing simplify prototyping and replacement in existing through-hole assemblies.
• Regulatory compliance: RoHS compliance supports integration into designs with environmental restrictions.

Why Choose RNL1C821MDS1?

The RNL1C821MDS1 delivers a balance of high capacitance, low ESR and strong ripple-current capability in a compact radial package, making it well suited for engineers designing power supplies, DC‑DC converters and industrial power subsystems that require reliable bulk energy storage and AC load handling. Its conductive polymer construction and specified electrical parameters provide measurable benefits for efficiency and thermal management.

Backed by the Nichicon RNL series’ emphasis on large capacitance and high ripple performance, RNL1C821MDS1 is a practical choice for general-purpose designs where predictable leakage, long-term endurance at elevated temperature, and through-hole mounting are priorities.

Request a quote or contact sales to discuss pricing, availability, lead times and sample options for RNL1C821MDS1.