RNU1A100MCS1

The RNU1A100MCS1 is a conductive polymer solid aluminum electrolytic capacitor in a compact radial-lead can. It offers 10 µF capacitance at a 10 V rating with low ESR and high ripple-current capability, designed for general-purpose electronic applications requiring a small, reliable decoupling or smoothing capacitor.

Engineered for demanding temperature environments, the part supports operation from –55°C to +105°C and a rated load life of 2000 hours at 105°C, delivering a balance of performance, thermal endurance, and compact package integration.

Key Features

• Capacitance & Voltage — 10 µF nominal capacitance with a 10 V rated voltage and ±20% tolerance for predictable charge-storage behavior in low-voltage power rails.
• Conductive-Polymer Electrolyte — Solid polymer construction provides lower ESR compared to many liquid electrolytic alternatives; ESR specified at 220 mΩ (20°C/100 kHz).
• High Ripple Current Capability — Rated ripple current of 70 mA at 120 Hz (low frequency) and 700 mA at 300 kHz (high frequency), enabling effective smoothing in switching and high-frequency applications.
• Compact Radial Package — Radial lead, can-style package with dimensions L: 5 × D: 4 mm and 1.5 mm lead spacing for space-constrained board layouts and through-hole assembly.
• Wide Operating Temperature — Specified operation from –55°C to +105°C to support a broad range of environmental conditions.
• Endurance — Rated lifetime of 2000 hours at 105°C, useful for designs where long-term thermal stability is required.
• RoHS Compliant — Conforms to RoHS requirements for lead-free manufacturing and environmental compliance.

Typical Applications

• General-Purpose Power Filtering — Ideal for decoupling and smoothing on low-voltage DC power rails where compact size and low ESR improve transient response.
• Switch-Mode Power Supplies — Suited for output-stage filtering in small SMPS designs thanks to its high ripple-current rating at high frequency.
• Embedded and Consumer Electronics — Fits space-limited PCBs that require stable capacitance across –55°C to +105°C operating range.

Unique Advantages

• Low ESR for Improved Efficiency: 220 mΩ ESR at 20°C/100 kHz reduces voltage drop and power loss in high-frequency circuits.
• High-Frequency Ripple Handling: 700 mA rated ripple at 300 kHz supports demanding switching environments and fast transient currents.
• Compact Footprint: 5 × 4 mm can size with 1.5 mm lead spacing enables dense board placement and easy through-hole assembly.
• Robust Temperature Range: –55°C to +105°C operation provides design margin for consumer and industrial ambient conditions.
• Solid Polymer Reliability: Conductive polymer construction offers consistent electrical performance and endurance over the specified 2000-hour rating at 105°C.
• Regulatory Compliance: RoHS compliance supports lead-free manufacturing and environmental requirements.

Why Choose RNU1A100MCS1?

The RNU1A100MCS1 combines conductive-polymer low-ESR performance with a compact radial-lead package, making it a practical choice for engineers needing reliable decoupling and smoothing in space-constrained designs. Its high ripple-current capability at high frequency and wide operating temperature range make it a robust option for power-supply outputs and general-purpose circuits.

This part is well suited to teams designing embedded systems, compact power converters, and consumer electronics that require predictable electrical behavior, thermal endurance, and RoHS-compliant components backed by datasheet-stated performance.

Request a quote or submit a pricing inquiry for RNU1A100MCS1 to evaluate availability and lead times for your design needs.