UVK2V221MRD

The UVK2V221MRD is a radial-lead aluminum electrolytic capacitor from Nichicon’s UVK series, offering 220 µF capacitance at a 350 V rated voltage. Designed for general-purpose electronic applications, it provides high-voltage capability in a compact radial can package.

This part pairs a miniature-sized φ22×50 mm can and 10 mm lead spacing with endurance rated for 2000 hours at 85°C, making it suitable where documented long-term operation and measurable ripple-handling are required.

Key Features

• Rated Capacitance and Tolerance — 220 µF nominal with ±20% tolerance measured at 120 Hz, 20°C, providing predictable capacitance for design calculations.
• High Voltage Rating — 350 V rated voltage for high-voltage general-purpose circuits requiring polarized electrolytic capacitance.
• Dissipation Factor (tan δ) — tan δ = 0.25 (measured at 120 Hz, 20°C) for the 350 V range, enabling assessment of loss characteristics in AC applications.
• Ripple Current Performance — Low-frequency ripple current 760 mA at 120 Hz and high-frequency ripple current 1.216 A at 10 kHz to support smoothing and decoupling needs across frequency ranges.
• Leakage Current — Specified leakage current of 3180 µA after rated-voltage application, useful for bias and insulation calculations.
• Endurance — Rated life of 2000 hours at 85°C with defined limits: capacitance change within ±20%, tan δ within 200% of initial spec, and leakage current at or below initial specified value after test.
• Operating Temperature Range — –40°C to +85°C to match a wide set of ambient conditions for general-purpose equipment.
• Package and Mounting — Radial lead, can-style package (φ22×50 mm) with 10 mm lead spacing; available in bulk (no terminal forming) or bag packing.
• Regulatory — UVK series noted as compliant to the RoHS directive (2011/65/EU, (EU)2015/863) per series documentation.

Typical Applications

• General-purpose electronic circuits — Provides polarized energy storage where a 350 V, 220 µF capacitor is required for smoothing and bulk capacitance in general applications.
• Power supply filtering — Suitable for filtering and decoupling stages that demand defined ripple current performance at both low and higher frequencies.
• Industrial equipment — Used in general-purpose industrial designs operating within –40°C to +85°C and requiring documented endurance at elevated temperature.

Unique Advantages

• High-voltage capability: 350 V rating permits use in higher-voltage general-purpose circuits without stepping up to larger packages.
• Frequency-aware ripple handling: Specified ripple currents at 120 Hz and 10 kHz help designers size capacitors for both low- and high-frequency ripple management.
• Documented endurance: 2000 hours at 85°C with defined post-test limits gives measurable reliability data for thermal-stress planning.
• Compact radial can: φ22×50 mm package with 10 mm lead spacing balances board space and capacitance for through-hole implementations.
• RoHS-aligned series: UVK series compliance with RoHS directives supports designs that require restricted-substance adherence.
• Multiple packing options: Available in bulk (no terminal forming) or bag packing to support different assembly or prototyping workflows.

Why Choose UVK2V221MRD?

UVK2V221MRD delivers a clear specification set—220 µF at 350 V, defined dissipation factor, ripple-current ratings across frequencies, and a 2000-hour endurance at 85°C—making it a practical choice for designers who need verifiable performance data for general-purpose, high-voltage capacitor applications. Its compact radial can footprint and standard lead spacing simplify integration into through-hole designs.

This part is well-suited to engineers and procurement teams specifying polarized aluminum electrolytic capacitors where documented thermal endurance, leakage, and ripple characteristics are required for reliable performance over time.

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