UKL2A220MPD

The UKL2A220MPD is a miniature radial-lead aluminum electrolytic capacitor from Nichicon's UKL low-leakage series. It delivers 22 µF capacitance in a compact φ10 × 12.5 L can with a 100 V rated voltage, targeted for audio applications where low leakage and stable performance are required.

Designed as a standard-type radial-lead component, this part combines low leakage, defined ripple current ratings, and a defined endurance of 2000 hours at 85°C to support reliable operation in constrained-board-space audio circuitry.

Key Features

• Capacitance and Tolerance — 22 µF nominal capacitance with tolerance of -20% to +20% (M) measured at 120 Hz, 20°C.
• Rated Voltage — 100 V DC rating for higher-voltage audio and power circuits.
• Low Leakage — Low leakage series design with specified leakage current of 4.4 µA (case size φ10 × 12.5), supporting long-term bias stability.
• Loss Tangent (tan δ) — tanδ = 0.07 (measured at 20°C, 120 Hz), indicating low dissipation for the specified case size and voltage.
• Ripple Current Capability — 136 mA at 120 Hz (low frequency) and 272 mA at 10 kHz (high frequency) to handle filtering and decoupling ripple in audio power paths.
• Endurance and Temperature Range — Rated for 2000 hours at 85°C with operating temperature range of -40°C to 85°C.
• Package and Mounting — Radial lead, can-style package with dimensions φ10 × 12.5 L and lead spacing 5 mm (±0.5 mm tolerance); available in bulk or bag packing (no terminal forming).
• Polarized — Polar type suitable for DC-coupled circuitry where polarity is defined.
• RoHS Compliant — Conforms to RoHS requirements.

Typical Applications

• Audio circuitry — Suited for audio applications that benefit from low leakage and stable capacitance at 100 V ratings.
• Power supply filtering in audio equipment — Ripple current ratings enable use in supply smoothing and decoupling for audio power rails.
• Signal coupling/decoupling in audio paths — Polarized aluminum electrolytic form factor and 22 µF value support coupling and decoupling roles in audio modules.

Unique Advantages

• Low leakage behavior — Specified leakage current of 4.4 µA for the φ10 × 12.5 case size improves DC bias stability in long-term audio applications.
• High voltage rating — 100 V rating provides margin for higher-voltage audio and power circuits without changing form factor.
• Compact radial-lead package — φ10 × 12.5 can with 5 mm lead spacing saves board area while allowing through-hole mounting and manual assembly options.
• Defined ripple performance — Published ripple current values at 120 Hz and 10 kHz let designers size the part for both low- and high-frequency ripple conditions.
• Long endurance at elevated temperature — 2000-hour rating at 85°C offers predictable life characteristics for temperature-stressed installations.
• Regulatory compliance — RoHS compliance supports environmental objectives in procurement and manufacturing.

Why Choose UKL2A220MPD?

The UKL2A220MPD is positioned for designers needing a compact, low-leakage aluminum electrolytic capacitor with a 100 V rating and clearly defined ripple and endurance specifications. Its combination of 22 µF capacitance, low tanδ, and radial-lead form factor makes it suitable for audio power and signal applications where board space is limited but performance predictability is important.

This part is a practical choice for engineers specifying polarized electrolytic solutions for audio equipment and related electronics that require RoHS compliance, high-voltage capability, and specified lifetime behavior at elevated temperature.

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