UKW2A3R3MDD

The UKW2A3R3MDD is a miniature aluminum electrolytic capacitor from Nichicon's UKW series, supplied in a radial-lead can and engineered for audio and AV equipment. It combines a compact φ5 × 11 mm footprint and 2 mm lead spacing with a 100 V rating and 3.3 µF capacitance for applications that require a high-voltage, small-form-factor electrolytic solution.

Designed with a new electrolyte formulation for the UKW series, the component targets audio performance while delivering measurable electrical characteristics—low dissipation factor, defined ripple current limits, controlled leakage, and industry-standard endurance over temperature.

Key Features

• Capacitance & Tolerance — 3.3 µF nominal capacitance with tolerance of −20% to +20% (measured at 120 Hz, 20°C).
• Voltage Rating — 100 V rated voltage for higher-voltage audio and AV circuits.
• Audio-Optimized Electrolyte — UKW series formulation described as achieving a harmonious balance of sound quality through its developed electrolyte.
• Low Dissipation Factor — tan δ = 0.08 (measured at 20°C, 120 Hz), supporting low internal losses for stable performance.
• Ripple Current Specifications — Low-frequency ripple: 40 mA at 120 Hz; high-frequency ripple: 80 mA at 10 kHz, enabling defined filtering and decoupling behavior across audio-frequency and higher-frequency conditions.
• Leakage Current — Specified leakage current of 9.9 µA, suitable for circuits where controlled leakage is required.
• Endurance & Temperature Range — Rated for 2000 hours at 85°C; operating temperature range −40°C to +85°C.
• Compact Radial Package — Can-style radial package, dimensions φ5 × 11 mm, lead spacing 2.0 mm (±0.5 mm), available in bulk or bag packing.
• Polarized — Designed as a polarized electrolytic capacitor; marked with gold lettering on a black sleeve for polarity/identification.
• RoHS Compliant — Conforms to RoHS directive requirements.

Typical Applications

• Audio and AV Equipment — Intended for use in consumer and professional audio/AV circuitry where a compact, polarized electrolytic capacitor is required.
• Signal and Power Filtering in Audio Systems — Suited to filtering, decoupling or coupling roles in audio assemblies that specify small footprint electrolytics with defined ripple and leakage characteristics.
• Compact Through-Hole Designs — Radial-lead format and small case size make it applicable to space-constrained through-hole PCBs used in audio modules and AV subassemblies.

Unique Advantages

• Compact high-voltage capability — Offers a 100 V rating in a φ5 × 11 mm can, enabling higher-voltage designs without a large capacitor footprint.
• Audio-focused electrolyte — UKW series electrolyte development targets a harmonious balance of sound quality, aligning component selection with audio performance goals.
• Defined ripple handling across frequencies — Specified low- and high-frequency ripple current values provide predictable behavior at both 120 Hz and 10 kHz.
• Stable dissipation and leakage characteristics — Low tan δ (0.08) and specified leakage current (9.9 µA) support consistent electrical performance and predictable dissipation in design.
• Durability in elevated temperatures — 2000-hour endurance rating at 85°C provides a measurable reliability baseline for thermal stress conditions.
• RoHS compliance and clear marking — Environmentally compliant with visible gold-on-black sleeve marking for easy identification on the assembly line.

Why Choose UKW2A3R3MDD?

UKW2A3R3MDD is positioned for designers and manufacturers of audio and AV equipment who need a small, radial electrolytic capacitor with a high voltage rating and audio-oriented electrolyte characteristics. Its combination of low dissipation factor, controlled leakage, and defined ripple current across low and high frequencies gives engineers measurable electrical behavior to integrate into power and signal paths.

With a compact φ5 × 11 mm package, 2.0 mm lead spacing, 2000-hour endurance at 85°C, and RoHS compliance, this part suits through-hole PCB designs where space, reliability, and audio performance are priorities.

If you would like pricing, availability, or a formal quotation for UKW2A3R3MDD, please submit a request or pricing inquiry including the part number and required quantity.