UKL2A2R2KDD

The UKL2A2R2KDD is a low-leakage aluminum electrolytic capacitor in a radial-lead can, optimized for applications requiring compact high-voltage capacitance. This unit provides 2.2 µF at a 100 V rating and is built to the Nichicon UKL series specification for low leakage and reliable ripple handling.

Designed for audio applications, the part combines low leakage current and a small φ5 × 11 mm footprint with a specified 2000-hour endurance at 85°C. Note: this product is End Of Life and the series is scheduled for discontinuation; it is not recommended for new designs.

Key Features

• Capacitance and Tolerance — 2.2 µF nominal capacitance with ±10% tolerance, specified at 120 Hz, 20°C.
• High Working Voltage — Rated for 100 V operation, suitable where elevated voltage margin is required.
• Low Leakage Current — Specified leakage current of 0.44 µA, supporting circuits that require minimal standby bleed.
• Ripple Performance — Low-frequency ripple current of 28 mA at 120 Hz and high-frequency ripple current of 56 mA at 10 kHz, enabling use across audio-frequency and higher-frequency environments.
• Radial Can Package — φ5 × 11 mm can with 2.0 mm lead spacing (±0.5 mm), radial-lead mounting for through-hole assemblies.
• Temperature and Endurance — Operating range −40°C to +85°C with endurance rated at 2000 hours at 85°C.
• Packaging Options — Supplied in Bulk (No Terminal Forming) or Bag packing to match assembly and stocking preferences.
• Regulatory — RoHS compliant as specified for the UKL series.

Typical Applications

• Audio electronics — Suited for audio circuit use where low leakage and a compact, high-voltage capacitor are required.
• Legacy and maintenance builds — Appropriate for repair, replacement, or sustaining existing designs that specify the UKL series form factor and characteristics.

Unique Advantages

• Low standby leakage: 0.44 µA leakage current minimizes unwanted discharge in bias and timing circuits.
• High-voltage capability: 100 V rating provides margin for circuits requiring elevated voltage handling in a small package.
• Compact radial footprint: φ5 × 11 mm can and 2.0 mm lead spacing reduce board area while supporting through-hole assembly processes.
• Dual-frequency ripple handling: Rated ripple currents at both 120 Hz and 10 kHz accommodate audio-frequency and higher-frequency ripple environments.
• Temperature endurance: Specified for −40°C to +85°C operation with 2000 hours endurance at 85°C for reliable performance under elevated ambient conditions.
• RoHS compliance: Meets RoHS directive requirements as stated for the UKL series.

Why Choose UKL2A2R2KDD?

UKL2A2R2KDD delivers a focused combination of low leakage, high voltage, and compact radial packaging tailored to audio and legacy repair applications. Its specified ripple current performance and 2000-hour endurance at 85°C make it a practical choice where stable capacitance and minimal leakage are required in a small through-hole form factor.

Because this part is End Of Life and the UKL series is scheduled for discontinuation, UKL2A2R2KDD is particularly suitable for sustaining, repairing, or matching existing designs that already specify this exact part and performance set.

If you would like pricing, availability, or assistance with a quote for UKL2A2R2KDD for inventory replenishment or legacy support, request a quote or contact sales to discuss lead times and packaging options.