RNU0J221MCS1

The RNU0J221MCS1 from Nichicon is a conductive polymer aluminum solid electrolytic capacitor in a radial lead can, offering 220 µF capacitance at a 6.3 V rating. It is engineered for general-purpose power decoupling and bulk energy storage in compact electronic designs where low ESR and high ripple handling are required.

With an operating temperature range of −55°C to 105°C, a 2000-hour endurance at 105°C, and RoHS compliance, this component targets consumer, industrial and communications applications that demand low impedance, reliable long-term performance in a small φ6.3×10 mm package.

Key Features

• Capacitance & Tolerance — 220 µF nominal capacitance with ±20% tolerance at 120 Hz, 20°C, suitable for bulk filtering and decoupling.
• Rated Voltage — 6.3 V DC rating for low-voltage power rails and downstream regulator outputs.
• Low ESR — 20 mΩ ESR measured at 20°C/100 kHz, providing low impedance for high-frequency performance.
• High Ripple Current Capability — Supports 320 mA at 120 Hz (low frequency) and 3.2 A at 300 kHz (high frequency), enabling effective smoothing in switching power supplies and converters.
• Leakage Current — 277 µA specified after 2 minutes at 20°C, useful for predictable bias and standby current budgeting.
• Temperature & Endurance — Rated for −55°C to 105°C with a 2000-hour life at 105°C, offering durability for elevated-temperature operating conditions.
• Package & Mounting — Radial lead can (φ6.3×10 mm) with 2.5 mm lead spacing (±0.5 mm), supplied in bulk/bag packing for through-hole assembly.
• Compliance & Availability — RoHS compliant and in mass production, simplifying procurement and regulatory alignment.

Typical Applications

• Switching Regulator Output Filtering — Low ESR and 3.2 A ripple capability at high frequency make this capacitor suitable for smoothing outputs of DC–DC converters.
• Power Rail Decoupling — Compact 220 µF value and low impedance at 100 kHz help maintain stable low-voltage rails in embedded and consumer systems.
• Audio and Communications Electronics — Low leakage and stable performance across −55°C to 105°C support reliable operation in signal and power sections.
• Industrial Control Electronics — 2000-hour endurance at 105°C and wide temperature range support prolonged operation in industrial environments.

Unique Advantages

• Low-impedance design: 20 mΩ ESR at 100 kHz reduces voltage drop and heat generation at high switching frequencies.
• High-frequency ripple handling: 3.2 A ripple current rating at 300 kHz enables use directly on fast-switching power stages.
• Compact through-hole footprint: φ6.3×10 mm radial can with 2.5 mm lead spacing saves board area while remaining compatible with standard through-hole assembly.
• Predictable leakage behavior: 277 µA leakage current specification aids in accurate standby and bias current planning.
• Thermal endurance: 2000 hours at 105°C provides assurance for elevated-temperature deployments and lifecycle planning.
• Regulatory readiness: RoHS compliance supports deployment in regulated markets without additional component changes.

Why Choose RNU0J221MCS1?

The RNU0J221MCS1 balances compact size with electrical performance: low ESR, high ripple capability, and a stable capacitance specification tailored for low-voltage power systems. Its radial lead can package and standard lead spacing make it straightforward to integrate into through-hole designs where reliable decoupling and bulk storage are required.

This capacitor is well suited for designers of consumer, industrial and communications equipment who need a proven, RoHS-compliant component with defined leakage, ripple, and thermal endurance characteristics—delivering long-term value through predictable performance and mass-production availability.

Request a quote or submit an inquiry to receive pricing and availability information for the RNU0J221MCS1 conductive polymer aluminum capacitor. Our team can provide lead times and packaging options to support your design and procurement needs.