RNU1C101MCS1

The RNU1C101MCS1 from Nichicon is a radial-lead conductive polymer aluminum solid electrolytic capacitor delivering 100 µF at 16 V in a compact φ6.3×10 mm can. It combines low ESR and high ripple current capability with a –55°C to 105°C operating range and a rated endurance of 2000 hours at 105°C.

Designed for general-purpose power and decoupling applications, this capacitor targets designs that require compact, low-loss energy storage and robust ripple-handling in switching and power supply circuits.

Key Features

• Conductive polymer aluminum construction Solid electrolyte for improved ripple performance and lower ESR compared to traditional wet electrolytics.
• Capacitance and tolerance 100 µF nominal with ±20% tolerance at 120 Hz, 20°C for predictable decoupling and bulk storage.
• Low ESR ESR = 25 mΩ measured at 20°C/100 kHz, supporting efficient high-frequency operation and reduced dissipation.
• High ripple current capability Rated ripple current of 282 mA at 120 Hz and 2.82 A at 300 kHz (frequency coefficient per datasheet), enabling use on switching regulator outputs and other high-ripple nodes.
• Thermal and endurance performance Operating range –55°C to 105°C with a rated life of 2000 hours at 105°C.
• Leakage and loss characteristics Leakage current ≤320 µA (after 2 minutes at 20°C) and tan δ = 0.08 (20°C, 120 Hz) for controlled dissipation and stable behavior.
• Radial-lead package φ6.3×10 mm can with 2.5 mm lead spacing (±0.5 mm), available in bulk or bag packing for manual or automated insertion.
• Compliance and availability RoHS compliant and in mass production as part of Nichicon’s RNU series.

Typical Applications

• Switching regulator outputs Low ESR and high-frequency ripple rating make it suitable for smoothing and stabilization on DC‑DC converter outputs.
• Power-supply decoupling Compact 100 µF capacitance provides bulk decoupling and transient support in compact power assemblies.
• Point-of-load filtering High ripple current capability and low loss characteristics help maintain regulation and lower thermal rise at point-of-load nodes.

Unique Advantages

• Low-loss operation: 25 mΩ ESR at 100 kHz reduces I²R losses and improves efficiency in high-frequency circuits.
• High ripple handling: Rated ripple up to 2.82 A at 300 kHz supports demanding switching environments and reduces capacitor count.
• Compact radial form factor: φ6.3×10 mm can with 2.5 mm lead spacing fits tight board layouts while retaining serviceable leaded mounting.
• Wide temperature endurance: –55°C to 105°C range and 2000 h life at 105°C provide predictable long-term performance in thermally stressed designs.
• Predictable leakage and dissipation: Defined leakage current (≤320 µA) and tan δ (0.08) enable reliable budgeting of standby current and dissipation in power budgets.
• RoHS compliant and production-ready: Meets RoHS requirements and is available in mass production quantities for volume designs.

Why Choose RNU1C101MCS1?

RNU1C101MCS1 delivers a practical balance of capacitance, low ESR, and high ripple capability in a small radial package, making it well suited for designers needing compact, reliable decoupling or smoothing solutions in switching power applications. Its defined electrical characteristics—ESR, ripple current, leakage, and tan δ—allow straightforward thermal and performance planning.

As part of Nichicon’s RNU conductive polymer series, this part is intended for general-purpose electronic designs that require robust ripple performance, predictable life at elevated temperature, and RoHS compliance.

Request a quote or contact sales to discuss pricing, lead times, and volume availability for RNU1C101MCS1.