RNU1E221MCN1

The RNU1E221MCN1 is a conductive polymer aluminum solid electrolytic capacitor in a radial lead can, rated at 220 µF and 25 V. Designed for general-purpose use, it delivers low ESR, high ripple-current capability and compact radial-lead packaging for power-decoupling and smoothing tasks in electronic designs.

Key Features

• Capacitance & Voltage — 220 µF nominal capacitance with a tolerance of −20% to +20% at the rated 25 V.
• Low ESR — Equivalent series resistance of 16 mΩ measured at 20°C / 100 kHz, minimizing voltage drop and dissipation in high-frequency circuits.
• High Ripple Current — Rated ripple current of 465 mA at 120 Hz (low frequency) and 4.65 A at 300 kHz (high frequency), supporting both bulk and high-frequency decoupling needs.
• Low Loss (tan δ) — tanδ of 0.12 measured at 20°C / 120 Hz for predictable AC performance.
• Thermal and Endurance Performance — Operating temperature range −55°C to +105°C with a rated load life of 2000 hours at 105°C.
• Radial Lead Package — Compact φ8×11.5 can body with 3.5 mm lead spacing (±0.5 mm), available in bulk (no terminal forming) or bag packing.
• Environmental Compliance — RoHS compliant.

Typical Applications

• General-purpose power decoupling — For circuits that require 220 µF at 25 V with low ESR to stabilize supply rails.
• Input/output rail smoothing — Supports designs that need substantial ripple-current handling, leveraging 465 mA at 120 Hz and 4.65 A at 300 kHz ratings.
• High-frequency power stages — Suitability for circuits operating at higher switching frequencies is supported by the 16 mΩ ESR measured at 100 kHz.

Unique Advantages

• Measurable low-loss performance: tanδ of 0.12 (20°C / 120 Hz) provides predictable AC characteristics for filter and decoupling designs.
• High-frequency readiness: 16 mΩ ESR at 100 kHz and a 4.65 A ripple current rating at 300 kHz support demanding switching and DC–DC converter environments.
• Thermal endurance: Rated for operation from −55°C to +105°C with a 2000-hour endurance at 105°C for sustained performance in thermally challenging applications.
• Compact radial form factor: φ8×11.5 can with 3.5 mm lead spacing offers a small footprint and easy through-hole placement for assembly flexibility.
• RoHS compliant: Meets RoHS directive requirements for environmentally conscious designs.

Why Choose RNU1E221MCN1?

The RNU1E221MCN1 combines conductive-polymer low ESR technology with substantial ripple-current capability and a compact radial-lead package, making it well suited for engineers who need reliable power decoupling and smoothing at 25 V. Its measurable electrical characteristics (ESR, tanδ, ripple current) and rated endurance at elevated temperature provide predictable behavior for design validation and long-term use.

This part is ideal for general-purpose electronic designs requiring a balance of low-loss performance, high ripple handling and compact through-hole mounting. Its RoHS compliance and standard packaging options help simplify procurement and assembly for production volumes.

If you would like pricing, availability or to request a quote for RNU1E221MCN1, please submit a quote request or contact sales for further assistance.