UKL1C220MDD

The UKL1C220MDD is a low‑leakage aluminum electrolytic capacitor in a radial‑lead can designed for compact, through‑hole applications. Its core characteristics—22 µF capacitance, 16 V rated voltage and a small φ5 × 11 mm package—make it suitable for designs that require a low‑leakage capacitor in a compact radial format.

Key performance points include a measured leakage current of 0.704 µA, low‑frequency ripple capability (85 mA at 120 Hz), high‑frequency ripple capability (170 mA at 10 kHz), and an endurance rating of 2000 hours at 85 °C. Status: End Of Life; this product is not recommended for new designs.

Key Features

• Capacitance & Voltage — 22 µF nominal capacitance with ±20% tolerance and a 16 V rated voltage for low‑voltage DC applications.
• Low Leakage — Specified leakage current of 0.704 µA, reflecting the UKL series low‑leakage characteristic for bias‑sensitive circuits.
• Ripple Current Performance — 85 mA at 120 Hz (low frequency) and 170 mA at 10 kHz (high frequency) to handle ripple in audio and related signal paths.
• Endurance & Temperature Range — Rated for 2000 hours at 85 °C; operational range is −40 °C to 85 °C with series endurance criteria (capacitance change, tan δ, and leakage current) specified by the UKL series.
• Compact Radial Package — φ5 × 11 mm can (1.1 × 0.5 cm) with 2 mm lead spacing (±0.5 mm tolerance), enabling installation on space‑constrained through‑hole PCBs.
• Mounting & Polarity — Radial lead, polarized capacitor suitable for conventional through‑hole assembly; available in bulk (no terminal forming) or bag packing.
• Regulatory — RoHS compliant.

Typical Applications

• Audio — Specified for audio applications where low leakage, controlled ripple handling and a compact radial form factor are required.

Unique Advantages

• Low leakage characteristic — With a leakage current of 0.704 µA, the UKL1C220MDD minimizes parasitic discharge in bias networks and other leakage‑sensitive circuits.
• Small radial can for tight layouts — The φ5 × 11 mm package and 2 mm lead spacing allow dense placement on through‑hole PCBs without sacrificing capacitance.
• Ripple capability across frequencies — Rated ripple currents at both 120 Hz and 10 kHz accommodate common audio and filtering workloads.
• Documented endurance — Rated 2000 hours at 85 °C with series endurance limits for capacitance change, tan δ, and leakage, providing predictable behavior over the rated life.
• RoHS compliance and packaging options — Available in bulk or bag packing and compliant with RoHS requirements for lead‑free processes.

Why Choose UKL1C220MDD?

The UKL1C220MDD offers a combination of low leakage, compact radial construction and defined ripple performance that addresses the needs of audio designers and other engineers seeking a small, polarized electrolytic capacitor with predictable endurance. Its measured leakage current, rated ripple figures and 2000‑hour endurance at 85 °C provide clear, verifiable specifications to support reliable design decisions.

Please note the product status: End Of Life and the UKL series guidance that units in this series are scheduled for discontinuation and are not recommended for new designs.

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