UKL1C222KHD

The UKL1C222KHD is a radial-leaded aluminum electrolytic capacitor designed for low leakage current applications. It provides 2200 µF (2.2 mF) capacitance at a 16 V rating in a φ16 × 25 mm can with 7.5 mm lead spacing, targeted for board-level power filtering and audio system circuits.

Key electrical characteristics include low-frequency ripple capability of 1.3 A (120 Hz), high-frequency ripple capability of 1.495 A (10 kHz), specified leakage current of 70.4 µA, and an endurance rating of 2000 hours at 85°C. Status: End Of Life — products in this series are scheduled to be discontinued and are not recommended for new designs.

Key Features

• Low Leakage Current — Specified leakage current of 70.4 µA supports reduced standby losses and stable DC bias in filter and smoothing applications.
• High Capacitance, Compact Can — 2200 µF in a φ16 × 25 mm package provides bulk energy storage and decoupling in a compact radial can footprint.
• Rated Voltage and Tolerance — 16 V rated voltage with ±10% capacitance tolerance for predictable performance in supply-rail and coupling circuits.
• Ripple Current Capability — Low-frequency ripple current 1.3 A (120 Hz) and high-frequency ripple current 1.495 A (10 kHz) accommodate AC ripple and switching noise suppression across common audio and power frequencies.
• Endurance and Temperature Range — 2000 h life at 85°C with operating range −40°C to 85°C, suitable for typical commercial audio and electronics environments.
• Radial Lead, Polarized Package — Radial-lead, polarized aluminum can package with 7.5 mm lead spacing for through-hole assembly and straightforward PCB placement.
• RoHS Compliant — Meets RoHS directive requirements for compliant material usage.

Typical Applications

• Audio Power Supplies — Bulk smoothing and reservoir capacitance for amplifier and preamplifier circuits where low leakage and high capacitance are needed.
• Decoupling in Signal Paths — DC blocking and power-rail decoupling in audio front-ends to maintain bias stability and reduce hum.
• Power Filtering for Consumer Electronics — Filtering and ripple suppression in board-level power supplies used in consumer audio and related electronics.

Unique Advantages

• Measurable Low Leakage: The specified 70.4 µA leakage figure gives designers a clear baseline for standby current budgeting and bias stability.
• High Energy Density in a Small Footprint: 2200 µF in a φ16 × 25 mm package enables significant bulk capacitance without a large board area impact.
• Frequency-Span Ripple Handling: Distinct ripple current ratings at 120 Hz and 10 kHz (1.3 A and 1.495 A) allow designers to assess performance across both power-line and switching/noise frequencies.
• Long Endurance at Elevated Temperature: 2000 hours at 85°C supports extended operation in typical commercial operating environments.
• Through-Hole Simplicity: Radial leaded can and 7.5 mm lead spacing simplify placement and mechanical retention for hand or wave-solder assembly processes.

Why Choose UKL1C222KHD?

UKL1C222KHD positions itself as a technical solution for designers needing high capacitance, low leakage, and defined ripple capabilities in a compact radial-leaded aluminum can. Its combination of 2200 µF capacitance, 16 V rating, and endurance at 85°C makes it suitable for audio power filtering, decoupling, and reservoir capacitor roles in commercial electronics.

Because this part is End Of Life and the UKL series is scheduled for discontinuation, it is most appropriate for maintenance, repair, or constrained-replacement scenarios rather than new product introductions. Use this part where the specified electrical and mechanical parameters align with existing designs and procurement availability.

Request a quote or contact sales to confirm current availability, lead times and to discuss alternative or replacement options that meet your long-term design and sourcing needs.