UKL1A221KPD

The UKL1A221KPD from Nichicon is a low-leakage aluminum electrolytic capacitor in a radial-lead can, offering 220 µF capacitance at a 10 V rating with ±10% tolerance. It is designed for compact PCB power and signal conditioning tasks where low leakage, defined ripple handling, and reliable endurance are important.

Key value comes from its low measured leakage current and practical ripple-current capability across low and high frequencies, combined with a compact φ8 × 11.5 mm can and radial mounting for through-hole assemblies commonly found in audio and related analog applications.

Key Features

• Electrical Performance  220 µF capacitance at 10 V with ±10% tolerance; polarized for DC applications.
• Low Leakage Current  Leakage current specified at 4.4 µA, supporting designs that require minimal DC bleed and stable biasing.
• Ripple-Current Capability  Rated ripple current of 310 mA at low frequency and 465 mA at high frequency, enabling effective filtering across a range of operating frequencies.
• Thermal Endurance  Qualified for operation from –40°C to +85°C with an endurance rating of 2000 hours at 85°C.
• Compact Radial Package  φ8 × 11.5 mm can with radial leads and 3.5 mm lead spacing (±0.5 mm tolerance) for straightforward through-hole placement.
• Packaging Options & Compliance  Available in bulk (no terminal forming) or bag packing and compliant with RoHS requirements.
• Manufacturer & Series  Nichicon UKL series — standard low leakage current family optimized for stable leakage behavior.

Typical Applications

• Audio equipment  Used for supply smoothing and decoupling in audio amplifiers and preamplifiers where low leakage and defined ripple handling help maintain signal integrity.
• Analog power rails  Provides local energy storage and ripple attenuation on DC rails in analog front-ends and signal-processing modules.
• Compact through-hole assemblies  Fits small form-factor PCB designs that require reliable radial-lead capacitors with measurable endurance and temperature range.

Unique Advantages

• Low quiescent loss: Low leakage current (4.4 µA) reduces unwanted DC loss and helps preserve biasing in sensitive circuits.
• Frequency-flexible ripple handling: Separate ripple ratings for low and high frequency (310 mA / 465 mA) give designers clear performance expectations for both power-line and high-frequency switching environments.
• Small footprint, through-hole convenience: φ8 × 11.5 mm can with radial leads and 3.5 mm lead spacing enables compact, serviceable installations on through-hole PCBs.
• Rated endurance at elevated temperature: 2000 hours at 85°C supports predictable life behavior in warm operating environments.
• RoHS-compliant supply options: Available in bulk or bag packing while meeting RoHS directive requirements for lead-free assemblies.
• Trusted manufacturer: Nichicon’s UKL series provides consistent low-leakage characteristics across the family for straightforward parts selection.

Why Choose UKL1A221KPD?

UKL1A221KPD combines a practical 220 µF capacity with a 10 V rating, low leakage current, and clearly specified ripple capabilities to address power decoupling and filtering needs in audio and precision analog circuits. Its compact radial-can form factor and 3.5 mm lead spacing make it an easy-to-place option for through-hole designs requiring measurable endurance and temperature performance.

This part is well suited to engineers specifying components for small, serviceable PCBs where controlled leakage, reliable ripple handling, and RoHS compliance matter. Choosing a Nichicon UKL series part provides consistent electrical characteristics and the predictability needed for production builds and maintenance cycles.

To request a quote or inquire about availability for UKL1A221KPD, please contact our sales team with your quantity and delivery requirements.