UFW1E221MPD

The UFW1E221MPD is a Nichicon UFW series aluminum electrolytic capacitor in a radial-lead can package, specified at 220 µF with a 25 V rating and ±20% tolerance. It is designed for audio applications and other electronic designs that require compact bulk capacitance with defined ripple-handling and low-leakage characteristics.

This component delivers a combination of compact size (φ8 × 11.5 mm), defined ripple current capability at low and high frequencies, and long-term endurance (2000 hours at 85°C), making it suitable for production-volume deployment where reliable decoupling and smoothing are required in audio circuitry.

Key Features

• Electrical Performance: 220 µF capacitance with ±20% tolerance and 25 V rated voltage provides stable energy storage for power filtering and decoupling in audio circuits.
• Ripple Current Capability: Rated ripple currents of 320 mA at 120 Hz and 480 mA at 10 kHz. Frequency coefficients for 100–470 µF parts allow predictable ripple scaling (e.g., 1.00 @120 Hz, 1.50 @≥10 kHz).
• Low Leakage: Specified leakage current of 165 µA, supporting low standby losses and stable bias conditions in signal and power paths.
• Reliability and Endurance: 2000 hours life at 85°C with post-test limits of ±20% capacitance change, tan δ within 200% of initial, and leakage not exceeding initial specified value.
• Temperature Range and Low‑temperature Stability: Rated for −40°C to +85°C. Series low-temperature impedance characteristics (25 V data) show Z(−25°C)/Z(+20°C) = 2 and Z(−40°C)/Z(+20°C) = 5 for predictable performance in cold environments.
• Compact Radial Package: φ8 × 11.5 mm can with 3.5 mm lead spacing and 0.6 mm lead wire diameter (radial lead configuration), enabling dense PCB placement in through-hole designs.
• Production-ready Packaging: Supplied in bulk/bag packing and targeted for mass production volume use.

Typical Applications

• Audio Equipment: Power supply smoothing and decoupling in amplifiers and preamplifiers where defined capacitance, low leakage, and ripple handling improve signal stability.
• Power Filtering: Bulk decoupling and local energy storage in DC rail circuits to stabilize voltage under dynamic loads in consumer and professional audio electronics.
• General Purpose Electronics: Through-hole assemblies requiring compact electrolytic capacitance with predictable lifetime and temperature behavior for reliable production builds.

Unique Advantages

• Targeted for Audio Use: Series designation and part application indicate suitability for audio circuitry, focusing on the behaviors audio designers require.
• High Frequency Ripple Support: Measured ripple current at 10 kHz (480 mA) and frequency coefficients for the 100–470 µF range let designers account for higher-frequency ripple in switch-mode and class‑D amplifier environments.
• Long Endurance: 2000-hour endurance at 85°C with defined post-test limits ensures predictable long-term performance in elevated-temperature applications.
• Controlled Leakage: Low specified leakage current (165 µA) helps minimize bias drift and idle power loss in sensitive audio circuits.
• Compact Through-hole Form Factor: φ8 × 11.5 mm can with 3.5 mm lead spacing suits dense PCB layouts while maintaining robust leaded mounting for mechanical durability.
• Production-friendly Packaging: Bulk/bag packing supports automated and manual assembly workflows for high-volume manufacturing.

Why Choose UFW1E221MPD?

The UFW1E221MPD provides a focused combination of capacitance, ripple capability, low leakage, and endurance in a compact radial-lead aluminum electrolytic package. Its electrical and environmental specifications (220 µF, 25 V, −40°C to +85°C, 2000 h at 85°C) make it well suited for audio-focused power supply filtering and general-purpose decoupling where predictable, production-grade behavior is required.

Designers and buyers who need a through-hole electrolytic that balances size, ripple handling at both low and high frequencies, and long-term stability will find this part appropriate for production assemblies in consumer and professional audio equipment and similar applications.

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